/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 22:43:48,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 22:43:48,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 22:43:48,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-10 22:43:49,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-10 22:43:49,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-10 22:43:49,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-10 22:43:49,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-10 22:43:49,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-10 22:43:49,009 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-10 22:43:49,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-10 22:43:49,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-10 22:43:49,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-10 22:43:49,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-10 22:43:49,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-10 22:43:49,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-10 22:43:49,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-10 22:43:49,053 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-03-10 22:43:49,093 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 22:43:49,094 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 22:43:49,095 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 22:43:49,095 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 22:43:49,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 22:43:49,099 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 22:43:49,099 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 22:43:49,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 22:43:49,100 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 22:43:49,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 22:43:49,101 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 22:43:49,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 22:43:49,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 22:43:49,102 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 22:43:49,102 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 22:43:49,102 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 22:43:49,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 22:43:49,102 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 22:43:49,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 22:43:49,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 22:43:49,103 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 22:43:49,103 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 22:43:49,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 22:43:49,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 22:43:49,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 22:43:49,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 22:43:49,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 22:43:49,104 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 22:43:49,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 22:43:49,104 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 22:43:49,105 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 22:43:49,105 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 22:43:49,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 22:43:49,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 22:43:49,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 22:43:49,512 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-10 22:43:49,513 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-10 22:43:49,515 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-fun.wvr.bpl [2021-03-10 22:43:49,515 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-fun.wvr.bpl' [2021-03-10 22:43:49,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 22:43:49,577 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-10 22:43:49,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 22:43:49,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 22:43:49,579 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 22:43:49,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 10:43:49" (1/1) ... [2021-03-10 22:43:49,598 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 10:43:49" (1/1) ... [2021-03-10 22:43:49,604 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 22:43:49,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 22:43:49,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 22:43:49,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 22:43:49,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 10:43:49" (1/1) ... [2021-03-10 22:43:49,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 10:43:49" (1/1) ... [2021-03-10 22:43:49,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 10:43:49" (1/1) ... [2021-03-10 22:43:49,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 10:43:49" (1/1) ... [2021-03-10 22:43:49,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 10:43:49" (1/1) ... [2021-03-10 22:43:49,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 10:43:49" (1/1) ... [2021-03-10 22:43:49,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 10:43:49" (1/1) ... [2021-03-10 22:43:49,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 22:43:49,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 22:43:49,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 22:43:49,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 22:43:49,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 10:43:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 22:43:49,697 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-10 22:43:49,697 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-10 22:43:49,697 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-10 22:43:49,697 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-10 22:43:49,697 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-10 22:43:49,698 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-10 22:43:49,698 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-10 22:43:49,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 22:43:49,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 22:43:49,699 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 22:43:49,927 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 22:43:49,928 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-10 22:43:49,929 INFO L202 PluginConnector]: Adding new model counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 10:43:49 BoogieIcfgContainer [2021-03-10 22:43:49,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 22:43:49,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 22:43:49,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 22:43:49,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 22:43:49,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 10:43:49" (1/2) ... [2021-03-10 22:43:49,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61e8eaaa and model type counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 10:43:49, skipping insertion in model container [2021-03-10 22:43:49,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 10:43:49" (2/2) ... [2021-03-10 22:43:49,937 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-fun.wvr.bpl [2021-03-10 22:43:49,957 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 22:43:49,957 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 22:43:49,961 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-10 22:43:49,962 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 22:43:50,019 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-10 22:43:50,050 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-10 22:43:50,069 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 22:43:50,069 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 22:43:50,070 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 22:43:50,070 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 22:43:50,070 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 22:43:50,070 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 22:43:50,070 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 22:43:50,070 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 22:43:50,080 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 22 transitions, 60 flow [2021-03-10 22:43:50,091 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 34 states, 32 states have (on average 1.8125) internal successors, (58), 33 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:50,094 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.8125) internal successors, (58), 33 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:50,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-03-10 22:43:50,101 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:43:50,102 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:43:50,102 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:43:50,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:43:50,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1451168716, now seen corresponding path program 1 times [2021-03-10 22:43:50,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:43:50,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093570666] [2021-03-10 22:43:50,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:43:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:43:50,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:43:50,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093570666] [2021-03-10 22:43:50,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 22:43:50,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-10 22:43:50,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897825420] [2021-03-10 22:43:50,254 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-10 22:43:50,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:43:50,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-10 22:43:50,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 22:43:50,268 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.8125) internal successors, (58), 33 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:50,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:43:50,311 INFO L93 Difference]: Finished difference Result 57 states and 105 transitions. [2021-03-10 22:43:50,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-10 22:43:50,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-03-10 22:43:50,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:43:50,321 INFO L225 Difference]: With dead ends: 57 [2021-03-10 22:43:50,322 INFO L226 Difference]: Without dead ends: 50 [2021-03-10 22:43:50,323 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 22:43:50,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-03-10 22:43:50,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2021-03-10 22:43:50,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.85) internal successors, (74), 40 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:50,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 74 transitions. [2021-03-10 22:43:50,366 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 74 transitions. Word has length 14 [2021-03-10 22:43:50,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:43:50,370 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 74 transitions. [2021-03-10 22:43:50,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:50,371 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 74 transitions. [2021-03-10 22:43:50,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-03-10 22:43:50,372 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:43:50,372 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:43:50,373 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 22:43:50,373 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:43:50,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:43:50,374 INFO L82 PathProgramCache]: Analyzing trace with hash -334624586, now seen corresponding path program 1 times [2021-03-10 22:43:50,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:43:50,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351933134] [2021-03-10 22:43:50,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:43:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:43:50,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:43:50,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351933134] [2021-03-10 22:43:50,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082430560] [2021-03-10 22:43:50,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:43:50,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:43:50,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-10 22:43:50,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:43:50,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:43:50,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:43:50,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2021-03-10 22:43:50,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836957210] [2021-03-10 22:43:50,665 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-10 22:43:50,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:43:50,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-10 22:43:50,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-03-10 22:43:50,667 INFO L87 Difference]: Start difference. First operand 41 states and 74 transitions. Second operand has 10 states, 10 states have (on average 2.6) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:50,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:43:50,807 INFO L93 Difference]: Finished difference Result 68 states and 120 transitions. [2021-03-10 22:43:50,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-10 22:43:50,808 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-03-10 22:43:50,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:43:50,809 INFO L225 Difference]: With dead ends: 68 [2021-03-10 22:43:50,810 INFO L226 Difference]: Without dead ends: 68 [2021-03-10 22:43:50,811 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 143.5ms TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-03-10 22:43:50,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-03-10 22:43:50,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 41. [2021-03-10 22:43:50,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.9) internal successors, (76), 40 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:50,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 76 transitions. [2021-03-10 22:43:50,818 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 76 transitions. Word has length 16 [2021-03-10 22:43:50,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:43:50,818 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 76 transitions. [2021-03-10 22:43:50,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:50,819 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 76 transitions. [2021-03-10 22:43:50,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-03-10 22:43:50,820 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:43:50,820 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:43:51,041 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-03-10 22:43:51,041 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:43:51,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:43:51,042 INFO L82 PathProgramCache]: Analyzing trace with hash 368180722, now seen corresponding path program 1 times [2021-03-10 22:43:51,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:43:51,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543421136] [2021-03-10 22:43:51,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:43:51,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:43:51,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:43:51,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543421136] [2021-03-10 22:43:51,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 22:43:51,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-10 22:43:51,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559651477] [2021-03-10 22:43:51,120 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 22:43:51,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:43:51,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 22:43:51,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-10 22:43:51,123 INFO L87 Difference]: Start difference. First operand 41 states and 76 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:51,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:43:51,217 INFO L93 Difference]: Finished difference Result 71 states and 125 transitions. [2021-03-10 22:43:51,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-10 22:43:51,218 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-03-10 22:43:51,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:43:51,223 INFO L225 Difference]: With dead ends: 71 [2021-03-10 22:43:51,226 INFO L226 Difference]: Without dead ends: 66 [2021-03-10 22:43:51,226 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 54.8ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-03-10 22:43:51,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-03-10 22:43:51,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 49. [2021-03-10 22:43:51,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.8958333333333333) internal successors, (91), 48 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:51,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 91 transitions. [2021-03-10 22:43:51,240 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 91 transitions. Word has length 16 [2021-03-10 22:43:51,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:43:51,240 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 91 transitions. [2021-03-10 22:43:51,240 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:51,241 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 91 transitions. [2021-03-10 22:43:51,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-03-10 22:43:51,241 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:43:51,241 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:43:51,242 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 22:43:51,242 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:43:51,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:43:51,242 INFO L82 PathProgramCache]: Analyzing trace with hash -896747138, now seen corresponding path program 2 times [2021-03-10 22:43:51,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:43:51,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195069698] [2021-03-10 22:43:51,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:43:51,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:43:51,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:43:51,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195069698] [2021-03-10 22:43:51,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 22:43:51,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-10 22:43:51,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736350601] [2021-03-10 22:43:51,317 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 22:43:51,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:43:51,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 22:43:51,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-10 22:43:51,321 INFO L87 Difference]: Start difference. First operand 49 states and 91 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:51,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:43:51,381 INFO L93 Difference]: Finished difference Result 51 states and 94 transitions. [2021-03-10 22:43:51,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-10 22:43:51,381 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-03-10 22:43:51,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:43:51,382 INFO L225 Difference]: With dead ends: 51 [2021-03-10 22:43:51,382 INFO L226 Difference]: Without dead ends: 51 [2021-03-10 22:43:51,382 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 46.8ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-03-10 22:43:51,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-03-10 22:43:51,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 43. [2021-03-10 22:43:51,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.880952380952381) internal successors, (79), 42 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:51,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 79 transitions. [2021-03-10 22:43:51,387 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 79 transitions. Word has length 16 [2021-03-10 22:43:51,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:43:51,387 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 79 transitions. [2021-03-10 22:43:51,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:51,388 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 79 transitions. [2021-03-10 22:43:51,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-03-10 22:43:51,388 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:43:51,389 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:43:51,389 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-10 22:43:51,389 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:43:51,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:43:51,390 INFO L82 PathProgramCache]: Analyzing trace with hash 2014322076, now seen corresponding path program 2 times [2021-03-10 22:43:51,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:43:51,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047255176] [2021-03-10 22:43:51,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:43:51,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:43:51,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:43:51,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047255176] [2021-03-10 22:43:51,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 22:43:51,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-10 22:43:51,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887048843] [2021-03-10 22:43:51,431 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 22:43:51,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:43:51,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 22:43:51,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-10 22:43:51,432 INFO L87 Difference]: Start difference. First operand 43 states and 79 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:51,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:43:51,512 INFO L93 Difference]: Finished difference Result 51 states and 92 transitions. [2021-03-10 22:43:51,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-10 22:43:51,514 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-03-10 22:43:51,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:43:51,515 INFO L225 Difference]: With dead ends: 51 [2021-03-10 22:43:51,515 INFO L226 Difference]: Without dead ends: 49 [2021-03-10 22:43:51,515 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 48.0ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-03-10 22:43:51,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-03-10 22:43:51,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2021-03-10 22:43:51,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.8571428571428572) internal successors, (78), 42 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:51,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 78 transitions. [2021-03-10 22:43:51,526 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 78 transitions. Word has length 16 [2021-03-10 22:43:51,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:43:51,527 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 78 transitions. [2021-03-10 22:43:51,527 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:51,527 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 78 transitions. [2021-03-10 22:43:51,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-03-10 22:43:51,528 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:43:51,528 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:43:51,528 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-10 22:43:51,528 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:43:51,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:43:51,529 INFO L82 PathProgramCache]: Analyzing trace with hash -374734348, now seen corresponding path program 1 times [2021-03-10 22:43:51,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:43:51,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105033598] [2021-03-10 22:43:51,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:43:51,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:43:51,626 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:43:51,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105033598] [2021-03-10 22:43:51,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525607008] [2021-03-10 22:43:51,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:43:51,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:43:51,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-10 22:43:51,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:43:51,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-03-10 22:43:51,747 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:43:51,749 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:43:51,751 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:43:51,751 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:5 [2021-03-10 22:43:51,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-03-10 22:43:51,806 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:43:51,808 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:43:51,808 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:43:51,808 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-03-10 22:43:51,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:43:51,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:43:51,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-03-10 22:43:51,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944743680] [2021-03-10 22:43:51,817 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-10 22:43:51,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:43:51,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-10 22:43:51,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-10 22:43:51,819 INFO L87 Difference]: Start difference. First operand 43 states and 78 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:51,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:43:51,836 INFO L93 Difference]: Finished difference Result 99 states and 186 transitions. [2021-03-10 22:43:51,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-10 22:43:51,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-03-10 22:43:51,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:43:51,838 INFO L225 Difference]: With dead ends: 99 [2021-03-10 22:43:51,838 INFO L226 Difference]: Without dead ends: 92 [2021-03-10 22:43:51,838 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.5ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-10 22:43:51,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-03-10 22:43:51,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 69. [2021-03-10 22:43:51,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 68 states have (on average 2.0441176470588234) internal successors, (139), 68 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:51,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 139 transitions. [2021-03-10 22:43:51,854 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 139 transitions. Word has length 18 [2021-03-10 22:43:51,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:43:51,854 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 139 transitions. [2021-03-10 22:43:51,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:51,855 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 139 transitions. [2021-03-10 22:43:51,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-03-10 22:43:51,855 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:43:51,855 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:43:52,081 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:43:52,082 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:43:52,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:43:52,083 INFO L82 PathProgramCache]: Analyzing trace with hash -1555556108, now seen corresponding path program 2 times [2021-03-10 22:43:52,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:43:52,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183710836] [2021-03-10 22:43:52,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:43:52,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:43:52,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:43:52,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183710836] [2021-03-10 22:43:52,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 22:43:52,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-10 22:43:52,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75418496] [2021-03-10 22:43:52,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-10 22:43:52,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:43:52,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-10 22:43:52,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-10 22:43:52,112 INFO L87 Difference]: Start difference. First operand 69 states and 139 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:52,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:43:52,127 INFO L93 Difference]: Finished difference Result 118 states and 233 transitions. [2021-03-10 22:43:52,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-10 22:43:52,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-03-10 22:43:52,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:43:52,128 INFO L225 Difference]: With dead ends: 118 [2021-03-10 22:43:52,128 INFO L226 Difference]: Without dead ends: 111 [2021-03-10 22:43:52,129 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.5ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-10 22:43:52,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-03-10 22:43:52,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 86. [2021-03-10 22:43:52,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 85 states have (on average 2.1294117647058823) internal successors, (181), 85 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:52,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 181 transitions. [2021-03-10 22:43:52,134 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 181 transitions. Word has length 18 [2021-03-10 22:43:52,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:43:52,134 INFO L480 AbstractCegarLoop]: Abstraction has 86 states and 181 transitions. [2021-03-10 22:43:52,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:52,134 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 181 transitions. [2021-03-10 22:43:52,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-03-10 22:43:52,135 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:43:52,135 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:43:52,136 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-10 22:43:52,136 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:43:52,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:43:52,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1351545482, now seen corresponding path program 3 times [2021-03-10 22:43:52,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:43:52,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813958556] [2021-03-10 22:43:52,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:43:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:43:52,214 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:43:52,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813958556] [2021-03-10 22:43:52,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402433422] [2021-03-10 22:43:52,215 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-10 22:43:52,245 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-03-10 22:43:52,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:43:52,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-10 22:43:52,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:43:52,396 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:43:52,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:43:52,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2021-03-10 22:43:52,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729964574] [2021-03-10 22:43:52,397 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-10 22:43:52,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:43:52,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-10 22:43:52,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-03-10 22:43:52,398 INFO L87 Difference]: Start difference. First operand 86 states and 181 transitions. Second operand has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:52,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:43:52,767 INFO L93 Difference]: Finished difference Result 213 states and 407 transitions. [2021-03-10 22:43:52,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-10 22:43:52,768 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-03-10 22:43:52,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:43:52,770 INFO L225 Difference]: With dead ends: 213 [2021-03-10 22:43:52,770 INFO L226 Difference]: Without dead ends: 213 [2021-03-10 22:43:52,771 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 310.5ms TimeCoverageRelationStatistics Valid=185, Invalid=465, Unknown=0, NotChecked=0, Total=650 [2021-03-10 22:43:52,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-03-10 22:43:52,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 88. [2021-03-10 22:43:52,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 87 states have (on average 2.1494252873563218) internal successors, (187), 87 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:52,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 187 transitions. [2021-03-10 22:43:52,793 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 187 transitions. Word has length 20 [2021-03-10 22:43:52,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:43:52,793 INFO L480 AbstractCegarLoop]: Abstraction has 88 states and 187 transitions. [2021-03-10 22:43:52,793 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:52,794 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 187 transitions. [2021-03-10 22:43:52,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-03-10 22:43:52,794 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:43:52,795 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:43:53,021 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:43:53,021 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:43:53,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:43:53,022 INFO L82 PathProgramCache]: Analyzing trace with hash -265509966, now seen corresponding path program 4 times [2021-03-10 22:43:53,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:43:53,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576429129] [2021-03-10 22:43:53,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:43:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:43:53,085 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:43:53,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576429129] [2021-03-10 22:43:53,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065250664] [2021-03-10 22:43:53,086 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-10 22:43:53,131 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:43:53,131 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:43:53,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-10 22:43:53,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:43:53,263 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:43:53,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:43:53,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-10 22:43:53,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888140230] [2021-03-10 22:43:53,264 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-10 22:43:53,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:43:53,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-10 22:43:53,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-03-10 22:43:53,265 INFO L87 Difference]: Start difference. First operand 88 states and 187 transitions. Second operand has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:53,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:43:53,629 INFO L93 Difference]: Finished difference Result 257 states and 488 transitions. [2021-03-10 22:43:53,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-10 22:43:53,630 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-03-10 22:43:53,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:43:53,631 INFO L225 Difference]: With dead ends: 257 [2021-03-10 22:43:53,631 INFO L226 Difference]: Without dead ends: 234 [2021-03-10 22:43:53,632 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 326.6ms TimeCoverageRelationStatistics Valid=177, Invalid=473, Unknown=0, NotChecked=0, Total=650 [2021-03-10 22:43:53,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-03-10 22:43:53,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 108. [2021-03-10 22:43:53,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 107 states have (on average 2.149532710280374) internal successors, (230), 107 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:53,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 230 transitions. [2021-03-10 22:43:53,645 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 230 transitions. Word has length 20 [2021-03-10 22:43:53,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:43:53,647 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 230 transitions. [2021-03-10 22:43:53,647 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:53,647 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 230 transitions. [2021-03-10 22:43:53,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-03-10 22:43:53,651 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:43:53,651 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:43:53,871 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:43:53,871 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:43:53,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:43:53,872 INFO L82 PathProgramCache]: Analyzing trace with hash -698013310, now seen corresponding path program 5 times [2021-03-10 22:43:53,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:43:53,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264144633] [2021-03-10 22:43:53,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:43:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:43:53,925 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:43:53,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264144633] [2021-03-10 22:43:53,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87025628] [2021-03-10 22:43:53,926 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:43:53,969 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-03-10 22:43:53,969 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:43:53,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-10 22:43:53,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:43:54,096 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:43:54,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:43:54,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2021-03-10 22:43:54,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737088724] [2021-03-10 22:43:54,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-10 22:43:54,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:43:54,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-10 22:43:54,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-03-10 22:43:54,101 INFO L87 Difference]: Start difference. First operand 108 states and 230 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:54,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:43:54,392 INFO L93 Difference]: Finished difference Result 236 states and 462 transitions. [2021-03-10 22:43:54,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 22:43:54,393 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-03-10 22:43:54,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:43:54,394 INFO L225 Difference]: With dead ends: 236 [2021-03-10 22:43:54,394 INFO L226 Difference]: Without dead ends: 236 [2021-03-10 22:43:54,395 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 245.8ms TimeCoverageRelationStatistics Valid=155, Invalid=351, Unknown=0, NotChecked=0, Total=506 [2021-03-10 22:43:54,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-03-10 22:43:54,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 131. [2021-03-10 22:43:54,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 130 states have (on average 2.230769230769231) internal successors, (290), 130 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:54,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 290 transitions. [2021-03-10 22:43:54,401 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 290 transitions. Word has length 20 [2021-03-10 22:43:54,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:43:54,401 INFO L480 AbstractCegarLoop]: Abstraction has 131 states and 290 transitions. [2021-03-10 22:43:54,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:54,401 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 290 transitions. [2021-03-10 22:43:54,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-03-10 22:43:54,404 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:43:54,404 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:43:54,625 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-03-10 22:43:54,626 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:43:54,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:43:54,626 INFO L82 PathProgramCache]: Analyzing trace with hash -2081911392, now seen corresponding path program 6 times [2021-03-10 22:43:54,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:43:54,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686166507] [2021-03-10 22:43:54,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:43:54,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:43:54,680 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:43:54,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686166507] [2021-03-10 22:43:54,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435405089] [2021-03-10 22:43:54,681 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-10 22:43:54,716 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-03-10 22:43:54,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:43:54,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-10 22:43:54,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:43:54,832 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:43:54,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:43:54,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2021-03-10 22:43:54,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043165821] [2021-03-10 22:43:54,833 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-10 22:43:54,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:43:54,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-10 22:43:54,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-03-10 22:43:54,834 INFO L87 Difference]: Start difference. First operand 131 states and 290 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:55,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:43:55,133 INFO L93 Difference]: Finished difference Result 208 states and 429 transitions. [2021-03-10 22:43:55,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 22:43:55,133 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-03-10 22:43:55,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:43:55,134 INFO L225 Difference]: With dead ends: 208 [2021-03-10 22:43:55,135 INFO L226 Difference]: Without dead ends: 204 [2021-03-10 22:43:55,135 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 268.3ms TimeCoverageRelationStatistics Valid=176, Invalid=424, Unknown=0, NotChecked=0, Total=600 [2021-03-10 22:43:55,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-03-10 22:43:55,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 133. [2021-03-10 22:43:55,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 2.212121212121212) internal successors, (292), 132 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:55,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 292 transitions. [2021-03-10 22:43:55,141 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 292 transitions. Word has length 20 [2021-03-10 22:43:55,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:43:55,141 INFO L480 AbstractCegarLoop]: Abstraction has 133 states and 292 transitions. [2021-03-10 22:43:55,141 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:55,141 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 292 transitions. [2021-03-10 22:43:55,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-03-10 22:43:55,142 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:43:55,142 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:43:55,367 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:43:55,367 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:43:55,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:43:55,368 INFO L82 PathProgramCache]: Analyzing trace with hash -1866660490, now seen corresponding path program 7 times [2021-03-10 22:43:55,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:43:55,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567094895] [2021-03-10 22:43:55,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:43:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:43:55,421 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:43:55,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567094895] [2021-03-10 22:43:55,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803544841] [2021-03-10 22:43:55,422 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:43:55,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:43:55,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-10 22:43:55,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:43:55,569 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:43:55,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:43:55,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-10 22:43:55,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010509677] [2021-03-10 22:43:55,570 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-10 22:43:55,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:43:55,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-10 22:43:55,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-03-10 22:43:55,571 INFO L87 Difference]: Start difference. First operand 133 states and 292 transitions. Second operand has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:55,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:43:55,886 INFO L93 Difference]: Finished difference Result 311 states and 632 transitions. [2021-03-10 22:43:55,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-10 22:43:55,887 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-03-10 22:43:55,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:43:55,892 INFO L225 Difference]: With dead ends: 311 [2021-03-10 22:43:55,892 INFO L226 Difference]: Without dead ends: 311 [2021-03-10 22:43:55,893 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 271.0ms TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2021-03-10 22:43:55,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2021-03-10 22:43:55,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 176. [2021-03-10 22:43:55,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 175 states have (on average 2.297142857142857) internal successors, (402), 175 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:55,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 402 transitions. [2021-03-10 22:43:55,905 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 402 transitions. Word has length 20 [2021-03-10 22:43:55,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:43:55,905 INFO L480 AbstractCegarLoop]: Abstraction has 176 states and 402 transitions. [2021-03-10 22:43:55,905 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:55,905 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 402 transitions. [2021-03-10 22:43:55,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-03-10 22:43:55,911 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:43:55,911 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:43:56,135 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:43:56,135 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:43:56,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:43:56,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1163855182, now seen corresponding path program 8 times [2021-03-10 22:43:56,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:43:56,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576399733] [2021-03-10 22:43:56,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:43:56,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:43:56,175 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:43:56,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576399733] [2021-03-10 22:43:56,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367181457] [2021-03-10 22:43:56,175 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:43:56,194 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 22:43:56,194 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:43:56,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-10 22:43:56,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:43:56,303 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:43:56,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:43:56,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2021-03-10 22:43:56,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365124896] [2021-03-10 22:43:56,305 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-10 22:43:56,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:43:56,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-10 22:43:56,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-03-10 22:43:56,306 INFO L87 Difference]: Start difference. First operand 176 states and 402 transitions. Second operand has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:56,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:43:56,595 INFO L93 Difference]: Finished difference Result 248 states and 522 transitions. [2021-03-10 22:43:56,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 22:43:56,596 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-03-10 22:43:56,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:43:56,597 INFO L225 Difference]: With dead ends: 248 [2021-03-10 22:43:56,598 INFO L226 Difference]: Without dead ends: 242 [2021-03-10 22:43:56,598 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 240.4ms TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2021-03-10 22:43:56,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-03-10 22:43:56,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 182. [2021-03-10 22:43:56,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 2.3259668508287294) internal successors, (421), 181 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:56,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 421 transitions. [2021-03-10 22:43:56,608 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 421 transitions. Word has length 20 [2021-03-10 22:43:56,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:43:56,608 INFO L480 AbstractCegarLoop]: Abstraction has 182 states and 421 transitions. [2021-03-10 22:43:56,608 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:56,608 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 421 transitions. [2021-03-10 22:43:56,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-03-10 22:43:56,611 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:43:56,611 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:43:56,827 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-03-10 22:43:56,827 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:43:56,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:43:56,828 INFO L82 PathProgramCache]: Analyzing trace with hash 482286172, now seen corresponding path program 9 times [2021-03-10 22:43:56,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:43:56,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832148315] [2021-03-10 22:43:56,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:43:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:43:56,872 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:43:56,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832148315] [2021-03-10 22:43:56,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072862437] [2021-03-10 22:43:56,873 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-10 22:43:56,920 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-03-10 22:43:56,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:43:56,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-10 22:43:56,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:43:57,034 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:43:57,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:43:57,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2021-03-10 22:43:57,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954776767] [2021-03-10 22:43:57,035 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-10 22:43:57,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:43:57,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-10 22:43:57,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-03-10 22:43:57,036 INFO L87 Difference]: Start difference. First operand 182 states and 421 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:57,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:43:57,277 INFO L93 Difference]: Finished difference Result 300 states and 621 transitions. [2021-03-10 22:43:57,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-10 22:43:57,278 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-03-10 22:43:57,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:43:57,279 INFO L225 Difference]: With dead ends: 300 [2021-03-10 22:43:57,279 INFO L226 Difference]: Without dead ends: 296 [2021-03-10 22:43:57,280 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 212.2ms TimeCoverageRelationStatistics Valid=168, Invalid=384, Unknown=0, NotChecked=0, Total=552 [2021-03-10 22:43:57,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2021-03-10 22:43:57,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 182. [2021-03-10 22:43:57,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 2.314917127071823) internal successors, (419), 181 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:57,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 419 transitions. [2021-03-10 22:43:57,287 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 419 transitions. Word has length 20 [2021-03-10 22:43:57,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:43:57,287 INFO L480 AbstractCegarLoop]: Abstraction has 182 states and 419 transitions. [2021-03-10 22:43:57,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:57,288 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 419 transitions. [2021-03-10 22:43:57,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-03-10 22:43:57,288 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:43:57,288 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:43:57,515 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:43:57,515 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:43:57,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:43:57,516 INFO L82 PathProgramCache]: Analyzing trace with hash -24060094, now seen corresponding path program 10 times [2021-03-10 22:43:57,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:43:57,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613419575] [2021-03-10 22:43:57,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:43:57,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:43:57,570 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:43:57,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613419575] [2021-03-10 22:43:57,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037507243] [2021-03-10 22:43:57,571 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:43:57,593 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 22:43:57,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:43:57,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-10 22:43:57,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:43:57,695 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:43:57,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:43:57,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-10 22:43:57,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767104317] [2021-03-10 22:43:57,696 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-10 22:43:57,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:43:57,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-10 22:43:57,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-03-10 22:43:57,697 INFO L87 Difference]: Start difference. First operand 182 states and 419 transitions. Second operand has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:57,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:43:57,963 INFO L93 Difference]: Finished difference Result 296 states and 623 transitions. [2021-03-10 22:43:57,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-10 22:43:57,964 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-03-10 22:43:57,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:43:57,966 INFO L225 Difference]: With dead ends: 296 [2021-03-10 22:43:57,966 INFO L226 Difference]: Without dead ends: 284 [2021-03-10 22:43:57,966 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 249.3ms TimeCoverageRelationStatistics Valid=197, Invalid=505, Unknown=0, NotChecked=0, Total=702 [2021-03-10 22:43:57,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2021-03-10 22:43:57,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 193. [2021-03-10 22:43:57,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 192 states have (on average 2.3125) internal successors, (444), 192 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:57,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 444 transitions. [2021-03-10 22:43:57,973 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 444 transitions. Word has length 20 [2021-03-10 22:43:57,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:43:57,973 INFO L480 AbstractCegarLoop]: Abstraction has 193 states and 444 transitions. [2021-03-10 22:43:57,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:57,973 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 444 transitions. [2021-03-10 22:43:57,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-03-10 22:43:57,974 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:43:57,974 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:43:58,198 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-03-10 22:43:58,198 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:43:58,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:43:58,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1616828084, now seen corresponding path program 11 times [2021-03-10 22:43:58,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:43:58,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013752082] [2021-03-10 22:43:58,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:43:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:43:58,230 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:43:58,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013752082] [2021-03-10 22:43:58,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599095410] [2021-03-10 22:43:58,231 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:43:58,257 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-03-10 22:43:58,257 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:43:58,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:43:58,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:43:58,322 INFO L354 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2021-03-10 22:43:58,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 35 [2021-03-10 22:43:58,347 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 22:43:58,354 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:43:58,362 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 22:43:58,362 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:25 [2021-03-10 22:43:58,444 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-03-10 22:43:58,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 18 [2021-03-10 22:43:58,449 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:43:58,454 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-03-10 22:43:58,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 13 [2021-03-10 22:43:58,457 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 22:43:58,459 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:43:58,460 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:43:58,460 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:3 [2021-03-10 22:43:58,467 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:43:58,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:43:58,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2021-03-10 22:43:58,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814843836] [2021-03-10 22:43:58,468 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-10 22:43:58,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:43:58,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-10 22:43:58,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-10 22:43:58,470 INFO L87 Difference]: Start difference. First operand 193 states and 444 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:58,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:43:58,518 INFO L93 Difference]: Finished difference Result 341 states and 750 transitions. [2021-03-10 22:43:58,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-10 22:43:58,518 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-03-10 22:43:58,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:43:58,520 INFO L225 Difference]: With dead ends: 341 [2021-03-10 22:43:58,520 INFO L226 Difference]: Without dead ends: 334 [2021-03-10 22:43:58,520 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 67.5ms TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-10 22:43:58,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2021-03-10 22:43:58,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 263. [2021-03-10 22:43:58,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 262 states have (on average 2.377862595419847) internal successors, (623), 262 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:58,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 623 transitions. [2021-03-10 22:43:58,532 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 623 transitions. Word has length 22 [2021-03-10 22:43:58,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:43:58,532 INFO L480 AbstractCegarLoop]: Abstraction has 263 states and 623 transitions. [2021-03-10 22:43:58,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:58,532 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 623 transitions. [2021-03-10 22:43:58,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-03-10 22:43:58,533 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:43:58,533 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:43:58,755 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-03-10 22:43:58,755 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:43:58,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:43:58,756 INFO L82 PathProgramCache]: Analyzing trace with hash -462338892, now seen corresponding path program 12 times [2021-03-10 22:43:58,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:43:58,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092669049] [2021-03-10 22:43:58,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:43:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:43:58,782 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:43:58,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092669049] [2021-03-10 22:43:58,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327297441] [2021-03-10 22:43:58,782 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:43:58,806 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-03-10 22:43:58,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:43:58,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-10 22:43:58,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:43:58,882 INFO L446 ElimStorePlain]: Different costs {1=[f], 3=[f_inv]} [2021-03-10 22:43:58,888 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:43:58,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 38 [2021-03-10 22:43:58,908 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 22:43:58,914 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:43:58,923 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:43:58,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 26 [2021-03-10 22:43:58,933 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 22:43:58,935 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:43:58,935 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:43:58,935 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:53, output treesize:3 [2021-03-10 22:43:58,946 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:43:58,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:43:58,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2021-03-10 22:43:58,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736443524] [2021-03-10 22:43:58,948 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-10 22:43:58,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:43:58,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-10 22:43:58,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-10 22:43:58,950 INFO L87 Difference]: Start difference. First operand 263 states and 623 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:58,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:43:58,993 INFO L93 Difference]: Finished difference Result 405 states and 917 transitions. [2021-03-10 22:43:58,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-10 22:43:58,993 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-03-10 22:43:58,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:43:58,995 INFO L225 Difference]: With dead ends: 405 [2021-03-10 22:43:58,996 INFO L226 Difference]: Without dead ends: 396 [2021-03-10 22:43:58,996 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 39.7ms TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-10 22:43:58,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2021-03-10 22:43:59,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 318. [2021-03-10 22:43:59,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 317 states have (on average 2.444794952681388) internal successors, (775), 317 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:59,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 775 transitions. [2021-03-10 22:43:59,014 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 775 transitions. Word has length 22 [2021-03-10 22:43:59,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:43:59,014 INFO L480 AbstractCegarLoop]: Abstraction has 318 states and 775 transitions. [2021-03-10 22:43:59,014 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:59,015 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 775 transitions. [2021-03-10 22:43:59,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-03-10 22:43:59,016 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:43:59,016 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:43:59,227 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:43:59,227 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:43:59,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:43:59,228 INFO L82 PathProgramCache]: Analyzing trace with hash -2570572, now seen corresponding path program 13 times [2021-03-10 22:43:59,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:43:59,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896705682] [2021-03-10 22:43:59,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:43:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:43:59,269 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:43:59,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896705682] [2021-03-10 22:43:59,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699593402] [2021-03-10 22:43:59,270 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:43:59,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:43:59,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-10 22:43:59,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:43:59,382 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:43:59,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-03-10 22:43:59,386 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:43:59,391 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:43:59,392 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:43:59,392 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:20 [2021-03-10 22:43:59,505 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-03-10 22:43:59,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 18 [2021-03-10 22:43:59,508 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:43:59,512 INFO L628 ElimStorePlain]: treesize reduction 21, result has 12.5 percent of original size [2021-03-10 22:43:59,513 INFO L518 ElimStorePlain]: Eliminatee v_prenex_2 vanished before elimination [2021-03-10 22:43:59,514 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:43:59,514 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:42, output treesize:3 [2021-03-10 22:43:59,524 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:43:59,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:43:59,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2021-03-10 22:43:59,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834304381] [2021-03-10 22:43:59,525 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-10 22:43:59,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:43:59,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-10 22:43:59,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-10 22:43:59,526 INFO L87 Difference]: Start difference. First operand 318 states and 775 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:59,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:43:59,567 INFO L93 Difference]: Finished difference Result 499 states and 1143 transitions. [2021-03-10 22:43:59,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-10 22:43:59,568 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-03-10 22:43:59,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:43:59,571 INFO L225 Difference]: With dead ends: 499 [2021-03-10 22:43:59,571 INFO L226 Difference]: Without dead ends: 492 [2021-03-10 22:43:59,572 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 52.3ms TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-10 22:43:59,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2021-03-10 22:43:59,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 374. [2021-03-10 22:43:59,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 373 states have (on average 2.474530831099196) internal successors, (923), 373 states have internal predecessors, (923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:59,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 923 transitions. [2021-03-10 22:43:59,585 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 923 transitions. Word has length 22 [2021-03-10 22:43:59,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:43:59,585 INFO L480 AbstractCegarLoop]: Abstraction has 374 states and 923 transitions. [2021-03-10 22:43:59,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:43:59,586 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 923 transitions. [2021-03-10 22:43:59,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-03-10 22:43:59,586 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:43:59,587 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:43:59,803 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-03-10 22:43:59,803 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:43:59,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:43:59,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1932504778, now seen corresponding path program 14 times [2021-03-10 22:43:59,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:43:59,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663492620] [2021-03-10 22:43:59,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:43:59,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:43:59,884 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:43:59,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663492620] [2021-03-10 22:43:59,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989183187] [2021-03-10 22:43:59,885 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:43:59,923 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 22:43:59,924 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:43:59,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-10 22:43:59,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:00,085 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:00,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:00,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2021-03-10 22:44:00,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929972965] [2021-03-10 22:44:00,087 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 22:44:00,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:00,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 22:44:00,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2021-03-10 22:44:00,088 INFO L87 Difference]: Start difference. First operand 374 states and 923 transitions. Second operand has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 17 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:00,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:00,636 INFO L93 Difference]: Finished difference Result 665 states and 1470 transitions. [2021-03-10 22:44:00,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-10 22:44:00,637 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 17 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-03-10 22:44:00,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:00,640 INFO L225 Difference]: With dead ends: 665 [2021-03-10 22:44:00,640 INFO L226 Difference]: Without dead ends: 665 [2021-03-10 22:44:00,641 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 447.7ms TimeCoverageRelationStatistics Valid=402, Invalid=1080, Unknown=0, NotChecked=0, Total=1482 [2021-03-10 22:44:00,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2021-03-10 22:44:00,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 325. [2021-03-10 22:44:00,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 324 states have (on average 2.450617283950617) internal successors, (794), 324 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:00,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 794 transitions. [2021-03-10 22:44:00,654 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 794 transitions. Word has length 24 [2021-03-10 22:44:00,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:00,654 INFO L480 AbstractCegarLoop]: Abstraction has 325 states and 794 transitions. [2021-03-10 22:44:00,654 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 17 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:00,655 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 794 transitions. [2021-03-10 22:44:00,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-03-10 22:44:00,656 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:00,656 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:00,877 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:00,878 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:00,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:00,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1929426830, now seen corresponding path program 15 times [2021-03-10 22:44:00,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:00,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192615176] [2021-03-10 22:44:00,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:00,955 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:00,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192615176] [2021-03-10 22:44:00,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015499207] [2021-03-10 22:44:00,956 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-10 22:44:00,992 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-03-10 22:44:00,993 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:00,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-10 22:44:00,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:01,151 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:01,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:01,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-03-10 22:44:01,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975703470] [2021-03-10 22:44:01,152 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-10 22:44:01,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:01,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-10 22:44:01,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2021-03-10 22:44:01,152 INFO L87 Difference]: Start difference. First operand 325 states and 794 transitions. Second operand has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 16 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:01,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:01,824 INFO L93 Difference]: Finished difference Result 786 states and 1670 transitions. [2021-03-10 22:44:01,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-03-10 22:44:01,825 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 16 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-03-10 22:44:01,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:01,828 INFO L225 Difference]: With dead ends: 786 [2021-03-10 22:44:01,828 INFO L226 Difference]: Without dead ends: 742 [2021-03-10 22:44:01,829 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 571.7ms TimeCoverageRelationStatistics Valid=449, Invalid=1357, Unknown=0, NotChecked=0, Total=1806 [2021-03-10 22:44:01,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2021-03-10 22:44:01,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 342. [2021-03-10 22:44:01,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 341 states have (on average 2.4134897360703813) internal successors, (823), 341 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:01,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 823 transitions. [2021-03-10 22:44:01,844 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 823 transitions. Word has length 24 [2021-03-10 22:44:01,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:01,844 INFO L480 AbstractCegarLoop]: Abstraction has 342 states and 823 transitions. [2021-03-10 22:44:01,844 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 16 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:01,844 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 823 transitions. [2021-03-10 22:44:01,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-03-10 22:44:01,845 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:01,845 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:02,070 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:02,071 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:02,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:02,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1265887354, now seen corresponding path program 16 times [2021-03-10 22:44:02,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:02,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545151949] [2021-03-10 22:44:02,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:02,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:02,119 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:02,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545151949] [2021-03-10 22:44:02,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689875961] [2021-03-10 22:44:02,120 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:02,139 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 22:44:02,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:02,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-10 22:44:02,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:02,271 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:02,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:02,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2021-03-10 22:44:02,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33394069] [2021-03-10 22:44:02,275 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 22:44:02,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:02,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 22:44:02,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-03-10 22:44:02,276 INFO L87 Difference]: Start difference. First operand 342 states and 823 transitions. Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:02,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:02,811 INFO L93 Difference]: Finished difference Result 742 states and 1645 transitions. [2021-03-10 22:44:02,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-10 22:44:02,812 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-03-10 22:44:02,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:02,815 INFO L225 Difference]: With dead ends: 742 [2021-03-10 22:44:02,815 INFO L226 Difference]: Without dead ends: 740 [2021-03-10 22:44:02,816 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 459.1ms TimeCoverageRelationStatistics Valid=387, Invalid=945, Unknown=0, NotChecked=0, Total=1332 [2021-03-10 22:44:02,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2021-03-10 22:44:02,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 404. [2021-03-10 22:44:02,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 403 states have (on average 2.424317617866005) internal successors, (977), 403 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:02,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 977 transitions. [2021-03-10 22:44:02,831 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 977 transitions. Word has length 24 [2021-03-10 22:44:02,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:02,832 INFO L480 AbstractCegarLoop]: Abstraction has 404 states and 977 transitions. [2021-03-10 22:44:02,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:02,832 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 977 transitions. [2021-03-10 22:44:02,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-03-10 22:44:02,835 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:02,835 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:03,051 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:03,051 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:03,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:03,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1645181860, now seen corresponding path program 17 times [2021-03-10 22:44:03,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:03,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118990643] [2021-03-10 22:44:03,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:03,111 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:03,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118990643] [2021-03-10 22:44:03,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631861911] [2021-03-10 22:44:03,111 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:03,146 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-03-10 22:44:03,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:03,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-10 22:44:03,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:03,289 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:03,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:03,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2021-03-10 22:44:03,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166964] [2021-03-10 22:44:03,290 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 22:44:03,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:03,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 22:44:03,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2021-03-10 22:44:03,291 INFO L87 Difference]: Start difference. First operand 404 states and 977 transitions. Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:03,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:03,735 INFO L93 Difference]: Finished difference Result 548 states and 1247 transitions. [2021-03-10 22:44:03,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 22:44:03,735 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-03-10 22:44:03,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:03,738 INFO L225 Difference]: With dead ends: 548 [2021-03-10 22:44:03,738 INFO L226 Difference]: Without dead ends: 544 [2021-03-10 22:44:03,738 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 422.6ms TimeCoverageRelationStatistics Valid=356, Invalid=976, Unknown=0, NotChecked=0, Total=1332 [2021-03-10 22:44:03,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2021-03-10 22:44:03,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 404. [2021-03-10 22:44:03,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 403 states have (on average 2.4218362282878414) internal successors, (976), 403 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:03,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 976 transitions. [2021-03-10 22:44:03,753 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 976 transitions. Word has length 24 [2021-03-10 22:44:03,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:03,753 INFO L480 AbstractCegarLoop]: Abstraction has 404 states and 976 transitions. [2021-03-10 22:44:03,754 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:03,754 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 976 transitions. [2021-03-10 22:44:03,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-03-10 22:44:03,755 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:03,755 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:03,971 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-03-10 22:44:03,971 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:03,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:03,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1445869170, now seen corresponding path program 18 times [2021-03-10 22:44:03,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:03,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714442518] [2021-03-10 22:44:03,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:03,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:04,020 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:44:04,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714442518] [2021-03-10 22:44:04,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780142961] [2021-03-10 22:44:04,021 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:04,052 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-03-10 22:44:04,053 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:04,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-10 22:44:04,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:04,186 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:04,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:04,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2021-03-10 22:44:04,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962055242] [2021-03-10 22:44:04,187 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 22:44:04,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:04,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 22:44:04,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2021-03-10 22:44:04,187 INFO L87 Difference]: Start difference. First operand 404 states and 976 transitions. Second operand has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:04,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:04,570 INFO L93 Difference]: Finished difference Result 648 states and 1454 transitions. [2021-03-10 22:44:04,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-03-10 22:44:04,570 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-03-10 22:44:04,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:04,573 INFO L225 Difference]: With dead ends: 648 [2021-03-10 22:44:04,574 INFO L226 Difference]: Without dead ends: 636 [2021-03-10 22:44:04,574 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 294.0ms TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2021-03-10 22:44:04,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2021-03-10 22:44:04,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 426. [2021-03-10 22:44:04,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 425 states have (on average 2.4376470588235293) internal successors, (1036), 425 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:04,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 1036 transitions. [2021-03-10 22:44:04,589 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 1036 transitions. Word has length 24 [2021-03-10 22:44:04,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:04,589 INFO L480 AbstractCegarLoop]: Abstraction has 426 states and 1036 transitions. [2021-03-10 22:44:04,589 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:04,589 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 1036 transitions. [2021-03-10 22:44:04,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-03-10 22:44:04,590 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:04,590 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:04,815 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-03-10 22:44:04,816 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:04,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:04,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1709303038, now seen corresponding path program 19 times [2021-03-10 22:44:04,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:04,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626266360] [2021-03-10 22:44:04,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:04,898 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:04,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626266360] [2021-03-10 22:44:04,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913215737] [2021-03-10 22:44:04,898 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-10 22:44:04,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:04,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:04,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:05,069 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:05,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:05,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2021-03-10 22:44:05,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254973818] [2021-03-10 22:44:05,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-10 22:44:05,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:05,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-10 22:44:05,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2021-03-10 22:44:05,073 INFO L87 Difference]: Start difference. First operand 426 states and 1036 transitions. Second operand has 16 states, 16 states have (on average 2.375) internal successors, (38), 15 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:05,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:05,589 INFO L93 Difference]: Finished difference Result 690 states and 1541 transitions. [2021-03-10 22:44:05,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 22:44:05,589 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 15 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-03-10 22:44:05,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:05,592 INFO L225 Difference]: With dead ends: 690 [2021-03-10 22:44:05,593 INFO L226 Difference]: Without dead ends: 676 [2021-03-10 22:44:05,593 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 461.6ms TimeCoverageRelationStatistics Valid=382, Invalid=1100, Unknown=0, NotChecked=0, Total=1482 [2021-03-10 22:44:05,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2021-03-10 22:44:05,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 412. [2021-03-10 22:44:05,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 411 states have (on average 2.4184914841849148) internal successors, (994), 411 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:05,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 994 transitions. [2021-03-10 22:44:05,606 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 994 transitions. Word has length 24 [2021-03-10 22:44:05,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:05,606 INFO L480 AbstractCegarLoop]: Abstraction has 412 states and 994 transitions. [2021-03-10 22:44:05,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 15 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:05,607 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 994 transitions. [2021-03-10 22:44:05,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-03-10 22:44:05,608 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:05,608 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:05,831 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-03-10 22:44:05,831 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:05,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:05,831 INFO L82 PathProgramCache]: Analyzing trace with hash 919841334, now seen corresponding path program 20 times [2021-03-10 22:44:05,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:05,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333750301] [2021-03-10 22:44:05,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:05,896 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:44:05,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333750301] [2021-03-10 22:44:05,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698433305] [2021-03-10 22:44:05,896 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:05,921 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 22:44:05,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:05,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-10 22:44:05,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:06,088 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:06,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:06,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-03-10 22:44:06,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777428195] [2021-03-10 22:44:06,088 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-10 22:44:06,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:06,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-10 22:44:06,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2021-03-10 22:44:06,089 INFO L87 Difference]: Start difference. First operand 412 states and 994 transitions. Second operand has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 16 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:06,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:06,573 INFO L93 Difference]: Finished difference Result 791 states and 1734 transitions. [2021-03-10 22:44:06,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 22:44:06,574 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 16 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-03-10 22:44:06,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:06,577 INFO L225 Difference]: With dead ends: 791 [2021-03-10 22:44:06,577 INFO L226 Difference]: Without dead ends: 791 [2021-03-10 22:44:06,578 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 417.4ms TimeCoverageRelationStatistics Valid=414, Invalid=1068, Unknown=0, NotChecked=0, Total=1482 [2021-03-10 22:44:06,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2021-03-10 22:44:06,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 429. [2021-03-10 22:44:06,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 428 states have (on average 2.397196261682243) internal successors, (1026), 428 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:06,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 1026 transitions. [2021-03-10 22:44:06,593 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 1026 transitions. Word has length 24 [2021-03-10 22:44:06,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:06,593 INFO L480 AbstractCegarLoop]: Abstraction has 429 states and 1026 transitions. [2021-03-10 22:44:06,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 16 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:06,593 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 1026 transitions. [2021-03-10 22:44:06,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-03-10 22:44:06,594 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:06,594 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:06,803 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-03-10 22:44:06,803 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:06,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:06,804 INFO L82 PathProgramCache]: Analyzing trace with hash 2005876850, now seen corresponding path program 21 times [2021-03-10 22:44:06,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:06,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380374836] [2021-03-10 22:44:06,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:06,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:06,861 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:44:06,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380374836] [2021-03-10 22:44:06,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583559238] [2021-03-10 22:44:06,861 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:06,882 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-03-10 22:44:06,882 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:06,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-10 22:44:06,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:07,003 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:07,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:07,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2021-03-10 22:44:07,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475360839] [2021-03-10 22:44:07,004 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-10 22:44:07,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:07,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-10 22:44:07,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2021-03-10 22:44:07,004 INFO L87 Difference]: Start difference. First operand 429 states and 1026 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:07,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:07,430 INFO L93 Difference]: Finished difference Result 588 states and 1296 transitions. [2021-03-10 22:44:07,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 22:44:07,430 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-03-10 22:44:07,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:07,432 INFO L225 Difference]: With dead ends: 588 [2021-03-10 22:44:07,432 INFO L226 Difference]: Without dead ends: 570 [2021-03-10 22:44:07,433 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 360.2ms TimeCoverageRelationStatistics Valid=286, Invalid=904, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 22:44:07,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2021-03-10 22:44:07,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 423. [2021-03-10 22:44:07,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 422 states have (on average 2.3981042654028437) internal successors, (1012), 422 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:07,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 1012 transitions. [2021-03-10 22:44:07,445 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 1012 transitions. Word has length 24 [2021-03-10 22:44:07,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:07,445 INFO L480 AbstractCegarLoop]: Abstraction has 423 states and 1012 transitions. [2021-03-10 22:44:07,446 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:07,446 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 1012 transitions. [2021-03-10 22:44:07,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-03-10 22:44:07,447 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:07,447 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:07,663 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-03-10 22:44:07,663 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:07,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:07,664 INFO L82 PathProgramCache]: Analyzing trace with hash 198787894, now seen corresponding path program 22 times [2021-03-10 22:44:07,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:07,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422515395] [2021-03-10 22:44:07,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:07,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:07,728 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:44:07,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422515395] [2021-03-10 22:44:07,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586275067] [2021-03-10 22:44:07,729 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:07,753 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 22:44:07,753 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:07,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-10 22:44:07,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:07,881 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:07,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:07,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2021-03-10 22:44:07,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851117992] [2021-03-10 22:44:07,882 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-10 22:44:07,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:07,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-10 22:44:07,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2021-03-10 22:44:07,883 INFO L87 Difference]: Start difference. First operand 423 states and 1012 transitions. Second operand has 16 states, 16 states have (on average 2.625) internal successors, (42), 15 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:08,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:08,390 INFO L93 Difference]: Finished difference Result 898 states and 2037 transitions. [2021-03-10 22:44:08,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-10 22:44:08,391 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 15 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-03-10 22:44:08,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:08,395 INFO L225 Difference]: With dead ends: 898 [2021-03-10 22:44:08,395 INFO L226 Difference]: Without dead ends: 898 [2021-03-10 22:44:08,395 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 456.9ms TimeCoverageRelationStatistics Valid=520, Invalid=1202, Unknown=0, NotChecked=0, Total=1722 [2021-03-10 22:44:08,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2021-03-10 22:44:08,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 622. [2021-03-10 22:44:08,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 621 states have (on average 2.4621578099838968) internal successors, (1529), 621 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:08,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 1529 transitions. [2021-03-10 22:44:08,415 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 1529 transitions. Word has length 24 [2021-03-10 22:44:08,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:08,416 INFO L480 AbstractCegarLoop]: Abstraction has 622 states and 1529 transitions. [2021-03-10 22:44:08,416 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 15 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:08,416 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 1529 transitions. [2021-03-10 22:44:08,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-03-10 22:44:08,417 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:08,417 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:08,635 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:08,635 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:08,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:08,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1747232740, now seen corresponding path program 23 times [2021-03-10 22:44:08,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:08,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376534916] [2021-03-10 22:44:08,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:08,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:08,688 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:44:08,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376534916] [2021-03-10 22:44:08,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815747349] [2021-03-10 22:44:08,689 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:08,714 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-03-10 22:44:08,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:08,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-10 22:44:08,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:08,836 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:08,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:08,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2021-03-10 22:44:08,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313263499] [2021-03-10 22:44:08,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 22:44:08,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:08,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 22:44:08,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2021-03-10 22:44:08,837 INFO L87 Difference]: Start difference. First operand 622 states and 1529 transitions. Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:09,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:09,228 INFO L93 Difference]: Finished difference Result 871 states and 1982 transitions. [2021-03-10 22:44:09,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-03-10 22:44:09,228 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-03-10 22:44:09,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:09,232 INFO L225 Difference]: With dead ends: 871 [2021-03-10 22:44:09,232 INFO L226 Difference]: Without dead ends: 867 [2021-03-10 22:44:09,233 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 354.2ms TimeCoverageRelationStatistics Valid=342, Invalid=848, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 22:44:09,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2021-03-10 22:44:09,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 622. [2021-03-10 22:44:09,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 621 states have (on average 2.4557165861513686) internal successors, (1525), 621 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:09,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 1525 transitions. [2021-03-10 22:44:09,252 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 1525 transitions. Word has length 24 [2021-03-10 22:44:09,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:09,252 INFO L480 AbstractCegarLoop]: Abstraction has 622 states and 1525 transitions. [2021-03-10 22:44:09,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:09,252 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 1525 transitions. [2021-03-10 22:44:09,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-03-10 22:44:09,254 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:09,254 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:09,471 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-03-10 22:44:09,472 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:09,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:09,472 INFO L82 PathProgramCache]: Analyzing trace with hash 2041388290, now seen corresponding path program 24 times [2021-03-10 22:44:09,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:09,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474644798] [2021-03-10 22:44:09,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:09,528 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:44:09,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474644798] [2021-03-10 22:44:09,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767072744] [2021-03-10 22:44:09,528 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:09,548 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-03-10 22:44:09,548 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:09,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-10 22:44:09,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:09,683 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:09,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:09,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2021-03-10 22:44:09,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164183175] [2021-03-10 22:44:09,684 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-10 22:44:09,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:09,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-10 22:44:09,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2021-03-10 22:44:09,686 INFO L87 Difference]: Start difference. First operand 622 states and 1525 transitions. Second operand has 16 states, 16 states have (on average 2.375) internal successors, (38), 15 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:10,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:10,111 INFO L93 Difference]: Finished difference Result 948 states and 2156 transitions. [2021-03-10 22:44:10,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-10 22:44:10,112 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 15 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-03-10 22:44:10,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:10,116 INFO L225 Difference]: With dead ends: 948 [2021-03-10 22:44:10,116 INFO L226 Difference]: Without dead ends: 936 [2021-03-10 22:44:10,116 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 387.1ms TimeCoverageRelationStatistics Valid=355, Invalid=977, Unknown=0, NotChecked=0, Total=1332 [2021-03-10 22:44:10,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2021-03-10 22:44:10,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 675. [2021-03-10 22:44:10,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 674 states have (on average 2.4614243323442135) internal successors, (1659), 674 states have internal predecessors, (1659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:10,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 1659 transitions. [2021-03-10 22:44:10,137 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 1659 transitions. Word has length 24 [2021-03-10 22:44:10,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:10,137 INFO L480 AbstractCegarLoop]: Abstraction has 675 states and 1659 transitions. [2021-03-10 22:44:10,137 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 15 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:10,138 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 1659 transitions. [2021-03-10 22:44:10,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-03-10 22:44:10,139 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:10,139 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:10,364 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-03-10 22:44:10,365 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:10,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:10,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1814166910, now seen corresponding path program 25 times [2021-03-10 22:44:10,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:10,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691612935] [2021-03-10 22:44:10,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:10,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:10,427 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:10,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691612935] [2021-03-10 22:44:10,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014382128] [2021-03-10 22:44:10,427 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-10 22:44:10,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:10,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-10 22:44:10,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:10,599 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:10,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:10,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-03-10 22:44:10,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055933325] [2021-03-10 22:44:10,601 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-10 22:44:10,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:10,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-10 22:44:10,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2021-03-10 22:44:10,602 INFO L87 Difference]: Start difference. First operand 675 states and 1659 transitions. Second operand has 17 states, 17 states have (on average 2.235294117647059) internal successors, (38), 16 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:11,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:11,141 INFO L93 Difference]: Finished difference Result 948 states and 2180 transitions. [2021-03-10 22:44:11,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-10 22:44:11,142 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.235294117647059) internal successors, (38), 16 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-03-10 22:44:11,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:11,145 INFO L225 Difference]: With dead ends: 948 [2021-03-10 22:44:11,146 INFO L226 Difference]: Without dead ends: 928 [2021-03-10 22:44:11,146 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 494.2ms TimeCoverageRelationStatistics Valid=419, Invalid=1221, Unknown=0, NotChecked=0, Total=1640 [2021-03-10 22:44:11,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2021-03-10 22:44:11,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 699. [2021-03-10 22:44:11,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 698 states have (on average 2.4713467048710602) internal successors, (1725), 698 states have internal predecessors, (1725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:11,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 1725 transitions. [2021-03-10 22:44:11,165 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 1725 transitions. Word has length 24 [2021-03-10 22:44:11,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:11,165 INFO L480 AbstractCegarLoop]: Abstraction has 699 states and 1725 transitions. [2021-03-10 22:44:11,165 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.235294117647059) internal successors, (38), 16 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:11,165 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 1725 transitions. [2021-03-10 22:44:11,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-03-10 22:44:11,167 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:11,167 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:11,383 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2021-03-10 22:44:11,383 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:11,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:11,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1660693108, now seen corresponding path program 26 times [2021-03-10 22:44:11,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:11,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859209948] [2021-03-10 22:44:11,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:11,427 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:11,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859209948] [2021-03-10 22:44:11,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792800855] [2021-03-10 22:44:11,427 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:11,461 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 22:44:11,461 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:11,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 23 conjunts are in the unsatisfiable core [2021-03-10 22:44:11,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:11,542 INFO L354 Elim1Store]: treesize reduction 32, result has 34.7 percent of original size [2021-03-10 22:44:11,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 51 [2021-03-10 22:44:11,575 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 22:44:11,586 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:44:11,601 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 22:44:11,602 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:47 [2021-03-10 22:44:11,804 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-03-10 22:44:11,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 22 [2021-03-10 22:44:11,806 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:11,820 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:44:11,828 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-03-10 22:44:11,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 23 [2021-03-10 22:44:11,830 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:11,847 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:44:11,862 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-03-10 22:44:11,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 33 [2021-03-10 22:44:11,864 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:11,872 INFO L628 ElimStorePlain]: treesize reduction 16, result has 15.8 percent of original size [2021-03-10 22:44:11,873 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:44:11,873 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:103, output treesize:3 [2021-03-10 22:44:11,880 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:11,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:11,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2021-03-10 22:44:11,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945565993] [2021-03-10 22:44:11,881 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-10 22:44:11,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:11,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-10 22:44:11,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-03-10 22:44:11,882 INFO L87 Difference]: Start difference. First operand 699 states and 1725 transitions. Second operand has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:11,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:11,980 INFO L93 Difference]: Finished difference Result 1035 states and 2478 transitions. [2021-03-10 22:44:11,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-10 22:44:11,981 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-03-10 22:44:11,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:11,984 INFO L225 Difference]: With dead ends: 1035 [2021-03-10 22:44:11,984 INFO L226 Difference]: Without dead ends: 1028 [2021-03-10 22:44:11,984 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 172.7ms TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-03-10 22:44:11,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2021-03-10 22:44:12,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 866. [2021-03-10 22:44:12,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 865 states have (on average 2.4959537572254336) internal successors, (2159), 865 states have internal predecessors, (2159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:12,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 2159 transitions. [2021-03-10 22:44:12,008 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 2159 transitions. Word has length 26 [2021-03-10 22:44:12,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:12,008 INFO L480 AbstractCegarLoop]: Abstraction has 866 states and 2159 transitions. [2021-03-10 22:44:12,008 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:12,008 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 2159 transitions. [2021-03-10 22:44:12,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-03-10 22:44:12,010 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:12,010 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:12,226 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:12,226 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:12,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:12,226 INFO L82 PathProgramCache]: Analyzing trace with hash -439799948, now seen corresponding path program 27 times [2021-03-10 22:44:12,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:12,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341855666] [2021-03-10 22:44:12,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:12,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:12,263 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:44:12,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341855666] [2021-03-10 22:44:12,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99553462] [2021-03-10 22:44:12,263 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:12,287 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-03-10 22:44:12,288 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:12,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 25 conjunts are in the unsatisfiable core [2021-03-10 22:44:12,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:12,388 INFO L446 ElimStorePlain]: Different costs {3=[f], 10=[f_inv]} [2021-03-10 22:44:12,403 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-03-10 22:44:12,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 60 [2021-03-10 22:44:12,432 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 22:44:12,441 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:44:12,452 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:44:12,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 53 [2021-03-10 22:44:12,472 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:12,474 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:44:12,475 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:44:12,475 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:84, output treesize:3 [2021-03-10 22:44:12,485 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:44:12,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:12,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2021-03-10 22:44:12,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906126085] [2021-03-10 22:44:12,486 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-10 22:44:12,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:12,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-10 22:44:12,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-03-10 22:44:12,486 INFO L87 Difference]: Start difference. First operand 866 states and 2159 transitions. Second operand has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:12,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:12,549 INFO L93 Difference]: Finished difference Result 1098 states and 2666 transitions. [2021-03-10 22:44:12,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 22:44:12,549 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-03-10 22:44:12,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:12,553 INFO L225 Difference]: With dead ends: 1098 [2021-03-10 22:44:12,553 INFO L226 Difference]: Without dead ends: 1089 [2021-03-10 22:44:12,553 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 79.9ms TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-03-10 22:44:12,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2021-03-10 22:44:12,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 972. [2021-03-10 22:44:12,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 971 states have (on average 2.532440782698249) internal successors, (2459), 971 states have internal predecessors, (2459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:12,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 2459 transitions. [2021-03-10 22:44:12,577 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 2459 transitions. Word has length 26 [2021-03-10 22:44:12,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:12,578 INFO L480 AbstractCegarLoop]: Abstraction has 972 states and 2459 transitions. [2021-03-10 22:44:12,578 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:12,578 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 2459 transitions. [2021-03-10 22:44:12,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-03-10 22:44:12,580 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:12,580 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:12,805 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2021-03-10 22:44:12,806 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:12,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:12,806 INFO L82 PathProgramCache]: Analyzing trace with hash -318369164, now seen corresponding path program 28 times [2021-03-10 22:44:12,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:12,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739946738] [2021-03-10 22:44:12,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:12,835 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:44:12,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739946738] [2021-03-10 22:44:12,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720563406] [2021-03-10 22:44:12,836 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:12,857 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 22:44:12,857 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:12,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-10 22:44:12,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:12,936 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-03-10 22:44:12,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 43 [2021-03-10 22:44:12,938 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:12,948 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:44:12,949 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:44:12,949 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:53, output treesize:32 [2021-03-10 22:44:13,036 INFO L446 ElimStorePlain]: Different costs {1=[f], 3=[v_prenex_10]} [2021-03-10 22:44:13,040 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-03-10 22:44:13,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 10 [2021-03-10 22:44:13,042 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:13,060 INFO L628 ElimStorePlain]: treesize reduction 30, result has 9.1 percent of original size [2021-03-10 22:44:13,061 INFO L518 ElimStorePlain]: Eliminatee v_prenex_10 vanished before elimination [2021-03-10 22:44:13,061 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:44:13,061 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:45, output treesize:3 [2021-03-10 22:44:13,070 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:44:13,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:13,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2021-03-10 22:44:13,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758856324] [2021-03-10 22:44:13,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-10 22:44:13,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:13,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-10 22:44:13,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-03-10 22:44:13,071 INFO L87 Difference]: Start difference. First operand 972 states and 2459 transitions. Second operand has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:13,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:13,131 INFO L93 Difference]: Finished difference Result 1360 states and 3305 transitions. [2021-03-10 22:44:13,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 22:44:13,131 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-03-10 22:44:13,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:13,135 INFO L225 Difference]: With dead ends: 1360 [2021-03-10 22:44:13,135 INFO L226 Difference]: Without dead ends: 1335 [2021-03-10 22:44:13,136 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 98.5ms TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-03-10 22:44:13,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2021-03-10 22:44:13,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1089. [2021-03-10 22:44:13,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1089 states, 1088 states have (on average 2.557904411764706) internal successors, (2783), 1088 states have internal predecessors, (2783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:13,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 2783 transitions. [2021-03-10 22:44:13,164 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 2783 transitions. Word has length 26 [2021-03-10 22:44:13,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:13,165 INFO L480 AbstractCegarLoop]: Abstraction has 1089 states and 2783 transitions. [2021-03-10 22:44:13,165 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:13,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 2783 transitions. [2021-03-10 22:44:13,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-03-10 22:44:13,168 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:13,168 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:13,383 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:13,383 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:13,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:13,383 INFO L82 PathProgramCache]: Analyzing trace with hash 412497268, now seen corresponding path program 29 times [2021-03-10 22:44:13,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:13,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824723462] [2021-03-10 22:44:13,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:13,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:13,413 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:44:13,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824723462] [2021-03-10 22:44:13,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804489958] [2021-03-10 22:44:13,414 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:13,435 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-03-10 22:44:13,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:13,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 25 conjunts are in the unsatisfiable core [2021-03-10 22:44:13,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:13,538 INFO L354 Elim1Store]: treesize reduction 32, result has 34.7 percent of original size [2021-03-10 22:44:13,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 57 [2021-03-10 22:44:13,566 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 22:44:13,576 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:44:13,588 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 22:44:13,588 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:70, output treesize:49 [2021-03-10 22:44:13,693 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-03-10 22:44:13,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 33 [2021-03-10 22:44:13,696 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:13,705 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-03-10 22:44:13,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 20 [2021-03-10 22:44:13,707 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:13,715 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-03-10 22:44:13,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 20 [2021-03-10 22:44:13,718 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:13,722 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-03-10 22:44:13,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 19 [2021-03-10 22:44:13,724 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:13,728 INFO L628 ElimStorePlain]: treesize reduction 9, result has 25.0 percent of original size [2021-03-10 22:44:13,729 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:44:13,729 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:137, output treesize:3 [2021-03-10 22:44:13,739 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:44:13,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:13,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2021-03-10 22:44:13,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329087072] [2021-03-10 22:44:13,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-10 22:44:13,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:13,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-10 22:44:13,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-03-10 22:44:13,740 INFO L87 Difference]: Start difference. First operand 1089 states and 2783 transitions. Second operand has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:13,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:13,836 INFO L93 Difference]: Finished difference Result 1426 states and 3542 transitions. [2021-03-10 22:44:13,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-10 22:44:13,837 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-03-10 22:44:13,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:13,841 INFO L225 Difference]: With dead ends: 1426 [2021-03-10 22:44:13,841 INFO L226 Difference]: Without dead ends: 1419 [2021-03-10 22:44:13,842 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 98.4ms TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-03-10 22:44:13,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1419 states. [2021-03-10 22:44:13,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1419 to 1225. [2021-03-10 22:44:13,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1225 states, 1224 states have (on average 2.5784313725490198) internal successors, (3156), 1224 states have internal predecessors, (3156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:13,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 3156 transitions. [2021-03-10 22:44:13,870 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 3156 transitions. Word has length 26 [2021-03-10 22:44:13,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:13,870 INFO L480 AbstractCegarLoop]: Abstraction has 1225 states and 3156 transitions. [2021-03-10 22:44:13,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:13,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 3156 transitions. [2021-03-10 22:44:13,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-10 22:44:13,873 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:13,873 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:14,098 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2021-03-10 22:44:14,099 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:14,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:14,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1387752458, now seen corresponding path program 30 times [2021-03-10 22:44:14,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:14,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490499351] [2021-03-10 22:44:14,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:14,183 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:14,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490499351] [2021-03-10 22:44:14,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753799279] [2021-03-10 22:44:14,183 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:14,203 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-03-10 22:44:14,204 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:14,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-10 22:44:14,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:14,389 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:14,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:14,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 21 [2021-03-10 22:44:14,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805941895] [2021-03-10 22:44:14,390 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-03-10 22:44:14,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:14,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-03-10 22:44:14,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2021-03-10 22:44:14,391 INFO L87 Difference]: Start difference. First operand 1225 states and 3156 transitions. Second operand has 22 states, 22 states have (on average 2.272727272727273) internal successors, (50), 21 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:15,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:15,152 INFO L93 Difference]: Finished difference Result 1761 states and 4199 transitions. [2021-03-10 22:44:15,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-03-10 22:44:15,153 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.272727272727273) internal successors, (50), 21 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-10 22:44:15,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:15,165 INFO L225 Difference]: With dead ends: 1761 [2021-03-10 22:44:15,165 INFO L226 Difference]: Without dead ends: 1761 [2021-03-10 22:44:15,166 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 659 ImplicationChecksByTransitivity, 664.7ms TimeCoverageRelationStatistics Valid=757, Invalid=2105, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 22:44:15,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1761 states. [2021-03-10 22:44:15,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1761 to 1090. [2021-03-10 22:44:15,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1090 states, 1089 states have (on average 2.5629017447199267) internal successors, (2791), 1089 states have internal predecessors, (2791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:15,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 2791 transitions. [2021-03-10 22:44:15,190 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 2791 transitions. Word has length 28 [2021-03-10 22:44:15,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:15,190 INFO L480 AbstractCegarLoop]: Abstraction has 1090 states and 2791 transitions. [2021-03-10 22:44:15,190 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.272727272727273) internal successors, (50), 21 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:15,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 2791 transitions. [2021-03-10 22:44:15,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-10 22:44:15,193 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:15,193 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:15,416 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:15,417 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:15,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:15,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1570155570, now seen corresponding path program 31 times [2021-03-10 22:44:15,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:15,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398145859] [2021-03-10 22:44:15,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:15,495 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:15,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398145859] [2021-03-10 22:44:15,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229049082] [2021-03-10 22:44:15,496 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-10 22:44:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:15,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-10 22:44:15,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:15,721 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:15,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:15,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-03-10 22:44:15,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13652521] [2021-03-10 22:44:15,722 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-03-10 22:44:15,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:15,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-03-10 22:44:15,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2021-03-10 22:44:15,723 INFO L87 Difference]: Start difference. First operand 1090 states and 2791 transitions. Second operand has 21 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 20 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:16,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:16,749 INFO L93 Difference]: Finished difference Result 2078 states and 4785 transitions. [2021-03-10 22:44:16,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-03-10 22:44:16,750 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 20 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-10 22:44:16,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:16,756 INFO L225 Difference]: With dead ends: 2078 [2021-03-10 22:44:16,756 INFO L226 Difference]: Without dead ends: 2007 [2021-03-10 22:44:16,757 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1149 ImplicationChecksByTransitivity, 949.4ms TimeCoverageRelationStatistics Valid=946, Invalid=3086, Unknown=0, NotChecked=0, Total=4032 [2021-03-10 22:44:16,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2007 states. [2021-03-10 22:44:16,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2007 to 1154. [2021-03-10 22:44:16,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1154 states, 1153 states have (on average 2.5481352992194277) internal successors, (2938), 1153 states have internal predecessors, (2938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:16,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 2938 transitions. [2021-03-10 22:44:16,790 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 2938 transitions. Word has length 28 [2021-03-10 22:44:16,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:16,790 INFO L480 AbstractCegarLoop]: Abstraction has 1154 states and 2938 transitions. [2021-03-10 22:44:16,790 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 20 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:16,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 2938 transitions. [2021-03-10 22:44:16,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-10 22:44:16,793 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:16,793 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:17,019 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable98 [2021-03-10 22:44:17,019 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:17,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:17,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1031109750, now seen corresponding path program 32 times [2021-03-10 22:44:17,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:17,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493082697] [2021-03-10 22:44:17,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:17,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:17,078 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:17,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493082697] [2021-03-10 22:44:17,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385099336] [2021-03-10 22:44:17,079 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:17,101 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 22:44:17,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:17,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-10 22:44:17,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:17,286 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:17,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:17,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 17 [2021-03-10 22:44:17,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346234571] [2021-03-10 22:44:17,289 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 22:44:17,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:17,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 22:44:17,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2021-03-10 22:44:17,290 INFO L87 Difference]: Start difference. First operand 1154 states and 2938 transitions. Second operand has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 17 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:18,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:18,237 INFO L93 Difference]: Finished difference Result 2302 states and 5553 transitions. [2021-03-10 22:44:18,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-03-10 22:44:18,237 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 17 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-10 22:44:18,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:18,242 INFO L225 Difference]: With dead ends: 2302 [2021-03-10 22:44:18,243 INFO L226 Difference]: Without dead ends: 2294 [2021-03-10 22:44:18,244 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 858 ImplicationChecksByTransitivity, 825.8ms TimeCoverageRelationStatistics Valid=836, Invalid=2134, Unknown=0, NotChecked=0, Total=2970 [2021-03-10 22:44:18,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2294 states. [2021-03-10 22:44:18,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2294 to 1436. [2021-03-10 22:44:18,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1435 states have (on average 2.5491289198606273) internal successors, (3658), 1435 states have internal predecessors, (3658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:18,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 3658 transitions. [2021-03-10 22:44:18,279 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 3658 transitions. Word has length 28 [2021-03-10 22:44:18,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:18,279 INFO L480 AbstractCegarLoop]: Abstraction has 1436 states and 3658 transitions. [2021-03-10 22:44:18,279 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 17 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:18,279 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 3658 transitions. [2021-03-10 22:44:18,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-10 22:44:18,282 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:18,282 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:18,493 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable99 [2021-03-10 22:44:18,493 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:18,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:18,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1879959464, now seen corresponding path program 33 times [2021-03-10 22:44:18,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:18,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397003851] [2021-03-10 22:44:18,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:18,557 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:18,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397003851] [2021-03-10 22:44:18,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588197572] [2021-03-10 22:44:18,558 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:18,596 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-03-10 22:44:18,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:18,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-10 22:44:18,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:18,759 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:18,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:18,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 17 [2021-03-10 22:44:18,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118129718] [2021-03-10 22:44:18,760 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 22:44:18,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:18,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 22:44:18,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2021-03-10 22:44:18,760 INFO L87 Difference]: Start difference. First operand 1436 states and 3658 transitions. Second operand has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 17 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:19,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:19,463 INFO L93 Difference]: Finished difference Result 1661 states and 4081 transitions. [2021-03-10 22:44:19,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-03-10 22:44:19,467 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 17 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-10 22:44:19,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:19,471 INFO L225 Difference]: With dead ends: 1661 [2021-03-10 22:44:19,471 INFO L226 Difference]: Without dead ends: 1657 [2021-03-10 22:44:19,472 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 661 ImplicationChecksByTransitivity, 662.9ms TimeCoverageRelationStatistics Valid=647, Invalid=1903, Unknown=0, NotChecked=0, Total=2550 [2021-03-10 22:44:19,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2021-03-10 22:44:19,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1436. [2021-03-10 22:44:19,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1435 states have (on average 2.5477351916376305) internal successors, (3656), 1435 states have internal predecessors, (3656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:19,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 3656 transitions. [2021-03-10 22:44:19,500 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 3656 transitions. Word has length 28 [2021-03-10 22:44:19,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:19,500 INFO L480 AbstractCegarLoop]: Abstraction has 1436 states and 3656 transitions. [2021-03-10 22:44:19,500 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 17 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:19,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 3656 transitions. [2021-03-10 22:44:19,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-10 22:44:19,503 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:19,503 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:19,723 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2021-03-10 22:44:19,723 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:19,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:19,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1630957874, now seen corresponding path program 34 times [2021-03-10 22:44:19,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:19,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407260976] [2021-03-10 22:44:19,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:19,772 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:44:19,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407260976] [2021-03-10 22:44:19,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742646820] [2021-03-10 22:44:19,772 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:19,792 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 22:44:19,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:19,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-10 22:44:19,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:19,978 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:19,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:19,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 17 [2021-03-10 22:44:19,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996457464] [2021-03-10 22:44:19,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 22:44:19,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:19,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 22:44:19,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2021-03-10 22:44:19,980 INFO L87 Difference]: Start difference. First operand 1436 states and 3656 transitions. Second operand has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 17 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:20,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:20,577 INFO L93 Difference]: Finished difference Result 2041 states and 4979 transitions. [2021-03-10 22:44:20,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-03-10 22:44:20,577 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 17 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-10 22:44:20,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:20,583 INFO L225 Difference]: With dead ends: 2041 [2021-03-10 22:44:20,583 INFO L226 Difference]: Without dead ends: 2026 [2021-03-10 22:44:20,583 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 503.1ms TimeCoverageRelationStatistics Valid=421, Invalid=1301, Unknown=0, NotChecked=0, Total=1722 [2021-03-10 22:44:20,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2026 states. [2021-03-10 22:44:20,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2026 to 1482. [2021-03-10 22:44:20,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1481 states have (on average 2.553004726536124) internal successors, (3781), 1481 states have internal predecessors, (3781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:20,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 3781 transitions. [2021-03-10 22:44:20,612 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 3781 transitions. Word has length 28 [2021-03-10 22:44:20,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:20,612 INFO L480 AbstractCegarLoop]: Abstraction has 1482 states and 3781 transitions. [2021-03-10 22:44:20,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 17 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:20,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 3781 transitions. [2021-03-10 22:44:20,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-10 22:44:20,615 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:20,615 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:20,815 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2021-03-10 22:44:20,815 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:20,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:20,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1524214334, now seen corresponding path program 35 times [2021-03-10 22:44:20,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:20,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786080021] [2021-03-10 22:44:20,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:20,878 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:20,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786080021] [2021-03-10 22:44:20,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687627439] [2021-03-10 22:44:20,879 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:20,908 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-03-10 22:44:20,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:20,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-10 22:44:20,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:21,075 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:21,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:21,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 18 [2021-03-10 22:44:21,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043373769] [2021-03-10 22:44:21,076 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 22:44:21,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:21,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 22:44:21,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2021-03-10 22:44:21,077 INFO L87 Difference]: Start difference. First operand 1482 states and 3781 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:21,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:21,942 INFO L93 Difference]: Finished difference Result 1955 states and 4722 transitions. [2021-03-10 22:44:21,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-03-10 22:44:21,943 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-10 22:44:21,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:21,947 INFO L225 Difference]: With dead ends: 1955 [2021-03-10 22:44:21,947 INFO L226 Difference]: Without dead ends: 1941 [2021-03-10 22:44:21,948 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 764 ImplicationChecksByTransitivity, 735.1ms TimeCoverageRelationStatistics Valid=680, Invalid=2076, Unknown=0, NotChecked=0, Total=2756 [2021-03-10 22:44:21,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1941 states. [2021-03-10 22:44:21,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1941 to 1492. [2021-03-10 22:44:21,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1492 states, 1491 states have (on average 2.551307847082495) internal successors, (3804), 1491 states have internal predecessors, (3804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:21,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 3804 transitions. [2021-03-10 22:44:21,975 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 3804 transitions. Word has length 28 [2021-03-10 22:44:21,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:21,975 INFO L480 AbstractCegarLoop]: Abstraction has 1492 states and 3804 transitions. [2021-03-10 22:44:21,975 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:21,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 3804 transitions. [2021-03-10 22:44:21,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-10 22:44:21,978 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:21,978 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:22,191 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2021-03-10 22:44:22,191 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:22,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:22,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1020569282, now seen corresponding path program 36 times [2021-03-10 22:44:22,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:22,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653921692] [2021-03-10 22:44:22,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:22,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:22,259 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:22,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653921692] [2021-03-10 22:44:22,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753342145] [2021-03-10 22:44:22,260 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:22,300 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-03-10 22:44:22,300 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:22,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-10 22:44:22,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:22,515 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:22,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:22,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2021-03-10 22:44:22,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128073598] [2021-03-10 22:44:22,516 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-10 22:44:22,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:22,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-10 22:44:22,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2021-03-10 22:44:22,517 INFO L87 Difference]: Start difference. First operand 1492 states and 3804 transitions. Second operand has 20 states, 20 states have (on average 2.3) internal successors, (46), 19 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:23,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:23,304 INFO L93 Difference]: Finished difference Result 2120 states and 5066 transitions. [2021-03-10 22:44:23,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-03-10 22:44:23,305 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.3) internal successors, (46), 19 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-10 22:44:23,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:23,310 INFO L225 Difference]: With dead ends: 2120 [2021-03-10 22:44:23,310 INFO L226 Difference]: Without dead ends: 2094 [2021-03-10 22:44:23,311 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 878 ImplicationChecksByTransitivity, 748.8ms TimeCoverageRelationStatistics Valid=724, Invalid=2246, Unknown=0, NotChecked=0, Total=2970 [2021-03-10 22:44:23,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2094 states. [2021-03-10 22:44:23,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2094 to 1363. [2021-03-10 22:44:23,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1363 states, 1362 states have (on average 2.530102790014684) internal successors, (3446), 1362 states have internal predecessors, (3446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:23,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 3446 transitions. [2021-03-10 22:44:23,344 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 3446 transitions. Word has length 28 [2021-03-10 22:44:23,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:23,344 INFO L480 AbstractCegarLoop]: Abstraction has 1363 states and 3446 transitions. [2021-03-10 22:44:23,344 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.3) internal successors, (46), 19 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:23,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 3446 transitions. [2021-03-10 22:44:23,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-10 22:44:23,346 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:23,346 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:23,559 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2021-03-10 22:44:23,559 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:23,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:23,559 INFO L82 PathProgramCache]: Analyzing trace with hash 873893366, now seen corresponding path program 37 times [2021-03-10 22:44:23,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:23,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134507248] [2021-03-10 22:44:23,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:23,642 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:44:23,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134507248] [2021-03-10 22:44:23,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444591709] [2021-03-10 22:44:23,642 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:23,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:23,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-10 22:44:23,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:23,873 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:23,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:23,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-03-10 22:44:23,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672409135] [2021-03-10 22:44:23,873 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-03-10 22:44:23,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:23,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-03-10 22:44:23,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2021-03-10 22:44:23,874 INFO L87 Difference]: Start difference. First operand 1363 states and 3446 transitions. Second operand has 21 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 20 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:24,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:24,729 INFO L93 Difference]: Finished difference Result 2078 states and 4835 transitions. [2021-03-10 22:44:24,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-03-10 22:44:24,729 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 20 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-10 22:44:24,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:24,734 INFO L225 Difference]: With dead ends: 2078 [2021-03-10 22:44:24,734 INFO L226 Difference]: Without dead ends: 2078 [2021-03-10 22:44:24,735 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 707.7ms TimeCoverageRelationStatistics Valid=756, Invalid=2106, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 22:44:24,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2078 states. [2021-03-10 22:44:24,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2078 to 1171. [2021-03-10 22:44:24,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 1170 states have (on average 2.500854700854701) internal successors, (2926), 1170 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:24,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 2926 transitions. [2021-03-10 22:44:24,762 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 2926 transitions. Word has length 28 [2021-03-10 22:44:24,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:24,762 INFO L480 AbstractCegarLoop]: Abstraction has 1171 states and 2926 transitions. [2021-03-10 22:44:24,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 20 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:24,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 2926 transitions. [2021-03-10 22:44:24,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-10 22:44:24,764 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:24,764 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:24,979 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable104 [2021-03-10 22:44:24,979 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:24,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:24,980 INFO L82 PathProgramCache]: Analyzing trace with hash 876971314, now seen corresponding path program 38 times [2021-03-10 22:44:24,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:24,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261313641] [2021-03-10 22:44:24,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:24,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:25,049 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:44:25,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261313641] [2021-03-10 22:44:25,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963119314] [2021-03-10 22:44:25,049 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:25,073 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 22:44:25,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:25,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-10 22:44:25,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:25,243 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:25,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:25,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2021-03-10 22:44:25,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317979580] [2021-03-10 22:44:25,244 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-10 22:44:25,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:25,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-10 22:44:25,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-03-10 22:44:25,245 INFO L87 Difference]: Start difference. First operand 1171 states and 2926 transitions. Second operand has 20 states, 20 states have (on average 2.35) internal successors, (47), 19 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:26,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:26,026 INFO L93 Difference]: Finished difference Result 1575 states and 3659 transitions. [2021-03-10 22:44:26,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-03-10 22:44:26,027 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.35) internal successors, (47), 19 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-10 22:44:26,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:26,030 INFO L225 Difference]: With dead ends: 1575 [2021-03-10 22:44:26,030 INFO L226 Difference]: Without dead ends: 1536 [2021-03-10 22:44:26,031 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 797 ImplicationChecksByTransitivity, 691.9ms TimeCoverageRelationStatistics Valid=599, Invalid=2053, Unknown=0, NotChecked=0, Total=2652 [2021-03-10 22:44:26,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2021-03-10 22:44:26,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1078. [2021-03-10 22:44:26,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 1077 states have (on average 2.4753946146703805) internal successors, (2666), 1077 states have internal predecessors, (2666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:26,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 2666 transitions. [2021-03-10 22:44:26,056 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 2666 transitions. Word has length 28 [2021-03-10 22:44:26,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:26,057 INFO L480 AbstractCegarLoop]: Abstraction has 1078 states and 2666 transitions. [2021-03-10 22:44:26,057 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.35) internal successors, (47), 19 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:26,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 2666 transitions. [2021-03-10 22:44:26,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-10 22:44:26,059 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:26,059 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:26,283 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105,39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:26,283 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:26,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:26,284 INFO L82 PathProgramCache]: Analyzing trace with hash 706414582, now seen corresponding path program 39 times [2021-03-10 22:44:26,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:26,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716071330] [2021-03-10 22:44:26,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:26,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:26,353 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:44:26,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716071330] [2021-03-10 22:44:26,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346722402] [2021-03-10 22:44:26,353 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:26,373 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-03-10 22:44:26,374 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:26,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-10 22:44:26,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:26,536 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:26,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:26,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2021-03-10 22:44:26,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045292324] [2021-03-10 22:44:26,537 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-10 22:44:26,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:26,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-10 22:44:26,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-03-10 22:44:26,538 INFO L87 Difference]: Start difference. First operand 1078 states and 2666 transitions. Second operand has 20 states, 20 states have (on average 2.45) internal successors, (49), 19 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:27,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:27,438 INFO L93 Difference]: Finished difference Result 1983 states and 4574 transitions. [2021-03-10 22:44:27,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-03-10 22:44:27,438 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.45) internal successors, (49), 19 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-10 22:44:27,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:27,443 INFO L225 Difference]: With dead ends: 1983 [2021-03-10 22:44:27,443 INFO L226 Difference]: Without dead ends: 1983 [2021-03-10 22:44:27,445 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 953 ImplicationChecksByTransitivity, 757.0ms TimeCoverageRelationStatistics Valid=892, Invalid=2300, Unknown=0, NotChecked=0, Total=3192 [2021-03-10 22:44:27,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2021-03-10 22:44:27,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1181. [2021-03-10 22:44:27,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1181 states, 1180 states have (on average 2.440677966101695) internal successors, (2880), 1180 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:27,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 2880 transitions. [2021-03-10 22:44:27,474 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 2880 transitions. Word has length 28 [2021-03-10 22:44:27,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:27,474 INFO L480 AbstractCegarLoop]: Abstraction has 1181 states and 2880 transitions. [2021-03-10 22:44:27,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.45) internal successors, (49), 19 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:27,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 2880 transitions. [2021-03-10 22:44:27,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-10 22:44:27,477 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:27,477 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:27,691 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable106 [2021-03-10 22:44:27,691 INFO L428 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:27,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:27,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1792450098, now seen corresponding path program 40 times [2021-03-10 22:44:27,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:27,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379633656] [2021-03-10 22:44:27,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:27,762 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:44:27,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379633656] [2021-03-10 22:44:27,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389266275] [2021-03-10 22:44:27,762 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:27,781 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 22:44:27,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:27,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-10 22:44:27,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:27,921 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:27,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:27,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 18 [2021-03-10 22:44:27,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602261626] [2021-03-10 22:44:27,922 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 22:44:27,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:27,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 22:44:27,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2021-03-10 22:44:27,922 INFO L87 Difference]: Start difference. First operand 1181 states and 2880 transitions. Second operand has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:28,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:28,602 INFO L93 Difference]: Finished difference Result 1515 states and 3517 transitions. [2021-03-10 22:44:28,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-03-10 22:44:28,602 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-10 22:44:28,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:28,606 INFO L225 Difference]: With dead ends: 1515 [2021-03-10 22:44:28,606 INFO L226 Difference]: Without dead ends: 1497 [2021-03-10 22:44:28,607 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 664 ImplicationChecksByTransitivity, 563.0ms TimeCoverageRelationStatistics Valid=519, Invalid=1737, Unknown=0, NotChecked=0, Total=2256 [2021-03-10 22:44:28,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2021-03-10 22:44:28,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1209. [2021-03-10 22:44:28,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1209 states, 1208 states have (on average 2.447019867549669) internal successors, (2956), 1208 states have internal predecessors, (2956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:28,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 2956 transitions. [2021-03-10 22:44:28,633 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 2956 transitions. Word has length 28 [2021-03-10 22:44:28,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:28,633 INFO L480 AbstractCegarLoop]: Abstraction has 1209 states and 2956 transitions. [2021-03-10 22:44:28,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:28,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 2956 transitions. [2021-03-10 22:44:28,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-10 22:44:28,636 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:28,636 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:28,849 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:28,849 INFO L428 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:28,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:28,850 INFO L82 PathProgramCache]: Analyzing trace with hash -352976394, now seen corresponding path program 41 times [2021-03-10 22:44:28,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:28,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670882803] [2021-03-10 22:44:28,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:28,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:28,913 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:44:28,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670882803] [2021-03-10 22:44:28,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229809394] [2021-03-10 22:44:28,914 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-10 22:44:28,946 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-03-10 22:44:28,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:28,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-10 22:44:28,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:29,112 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:29,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:29,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 18 [2021-03-10 22:44:29,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530556129] [2021-03-10 22:44:29,113 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 22:44:29,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:29,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 22:44:29,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2021-03-10 22:44:29,114 INFO L87 Difference]: Start difference. First operand 1209 states and 2956 transitions. Second operand has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:30,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:30,016 INFO L93 Difference]: Finished difference Result 2391 states and 5676 transitions. [2021-03-10 22:44:30,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-03-10 22:44:30,017 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-10 22:44:30,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:30,022 INFO L225 Difference]: With dead ends: 2391 [2021-03-10 22:44:30,022 INFO L226 Difference]: Without dead ends: 2391 [2021-03-10 22:44:30,023 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1207 ImplicationChecksByTransitivity, 808.1ms TimeCoverageRelationStatistics Valid=1080, Invalid=2580, Unknown=0, NotChecked=0, Total=3660 [2021-03-10 22:44:30,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2391 states. [2021-03-10 22:44:30,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2391 to 1853. [2021-03-10 22:44:30,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1853 states, 1852 states have (on average 2.5) internal successors, (4630), 1852 states have internal predecessors, (4630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:30,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1853 states to 1853 states and 4630 transitions. [2021-03-10 22:44:30,070 INFO L78 Accepts]: Start accepts. Automaton has 1853 states and 4630 transitions. Word has length 28 [2021-03-10 22:44:30,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:30,070 INFO L480 AbstractCegarLoop]: Abstraction has 1853 states and 4630 transitions. [2021-03-10 22:44:30,070 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:30,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1853 states and 4630 transitions. [2021-03-10 22:44:30,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-10 22:44:30,073 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:30,073 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:30,299 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,42 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:30,299 INFO L428 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:30,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:30,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1995970268, now seen corresponding path program 42 times [2021-03-10 22:44:30,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:30,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683246333] [2021-03-10 22:44:30,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:30,357 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:44:30,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683246333] [2021-03-10 22:44:30,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307613398] [2021-03-10 22:44:30,357 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:30,381 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-03-10 22:44:30,382 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:30,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-10 22:44:30,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:30,555 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:30,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:30,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 17 [2021-03-10 22:44:30,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082073010] [2021-03-10 22:44:30,556 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 22:44:30,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:30,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 22:44:30,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2021-03-10 22:44:30,556 INFO L87 Difference]: Start difference. First operand 1853 states and 4630 transitions. Second operand has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 17 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:31,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:31,173 INFO L93 Difference]: Finished difference Result 2323 states and 5527 transitions. [2021-03-10 22:44:31,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-03-10 22:44:31,174 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 17 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-10 22:44:31,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:31,179 INFO L225 Difference]: With dead ends: 2323 [2021-03-10 22:44:31,179 INFO L226 Difference]: Without dead ends: 2319 [2021-03-10 22:44:31,180 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 633 ImplicationChecksByTransitivity, 570.4ms TimeCoverageRelationStatistics Valid=634, Invalid=1622, Unknown=0, NotChecked=0, Total=2256 [2021-03-10 22:44:31,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2319 states. [2021-03-10 22:44:31,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2319 to 1827. [2021-03-10 22:44:31,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1827 states, 1826 states have (on average 2.4961664841182913) internal successors, (4558), 1826 states have internal predecessors, (4558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:31,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1827 states to 1827 states and 4558 transitions. [2021-03-10 22:44:31,226 INFO L78 Accepts]: Start accepts. Automaton has 1827 states and 4558 transitions. Word has length 28 [2021-03-10 22:44:31,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:31,226 INFO L480 AbstractCegarLoop]: Abstraction has 1827 states and 4558 transitions. [2021-03-10 22:44:31,226 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 17 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:31,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1827 states and 4558 transitions. [2021-03-10 22:44:31,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-10 22:44:31,230 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:31,230 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:31,446 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:31,447 INFO L428 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:31,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:31,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1489624002, now seen corresponding path program 43 times [2021-03-10 22:44:31,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:31,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799836060] [2021-03-10 22:44:31,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:31,515 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:44:31,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799836060] [2021-03-10 22:44:31,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76621209] [2021-03-10 22:44:31,515 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:31,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:31,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-10 22:44:31,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:31,711 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:31,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:31,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 18 [2021-03-10 22:44:31,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366165879] [2021-03-10 22:44:31,712 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 22:44:31,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:31,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 22:44:31,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2021-03-10 22:44:31,713 INFO L87 Difference]: Start difference. First operand 1827 states and 4558 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:32,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:32,332 INFO L93 Difference]: Finished difference Result 2472 states and 5895 transitions. [2021-03-10 22:44:32,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-03-10 22:44:32,332 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-10 22:44:32,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:32,336 INFO L225 Difference]: With dead ends: 2472 [2021-03-10 22:44:32,336 INFO L226 Difference]: Without dead ends: 2460 [2021-03-10 22:44:32,337 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 664 ImplicationChecksByTransitivity, 587.8ms TimeCoverageRelationStatistics Valid=613, Invalid=1739, Unknown=0, NotChecked=0, Total=2352 [2021-03-10 22:44:32,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2460 states. [2021-03-10 22:44:32,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2460 to 1976. [2021-03-10 22:44:32,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1976 states, 1975 states have (on average 2.5063291139240507) internal successors, (4950), 1975 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:32,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 4950 transitions. [2021-03-10 22:44:32,395 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 4950 transitions. Word has length 28 [2021-03-10 22:44:32,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:32,395 INFO L480 AbstractCegarLoop]: Abstraction has 1976 states and 4950 transitions. [2021-03-10 22:44:32,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:32,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 4950 transitions. [2021-03-10 22:44:32,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-10 22:44:32,398 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:32,398 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:32,615 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:32,615 INFO L428 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:32,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:32,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1262402622, now seen corresponding path program 44 times [2021-03-10 22:44:32,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:32,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733824163] [2021-03-10 22:44:32,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:32,686 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:44:32,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733824163] [2021-03-10 22:44:32,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5859179] [2021-03-10 22:44:32,687 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:32,712 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 22:44:32,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:32,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-10 22:44:32,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:32,865 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:32,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:32,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2021-03-10 22:44:32,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419599917] [2021-03-10 22:44:32,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-10 22:44:32,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:32,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-10 22:44:32,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2021-03-10 22:44:32,866 INFO L87 Difference]: Start difference. First operand 1976 states and 4950 transitions. Second operand has 20 states, 20 states have (on average 2.3) internal successors, (46), 19 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:33,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:33,570 INFO L93 Difference]: Finished difference Result 2770 states and 6589 transitions. [2021-03-10 22:44:33,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-03-10 22:44:33,571 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.3) internal successors, (46), 19 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-10 22:44:33,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:33,574 INFO L225 Difference]: With dead ends: 2770 [2021-03-10 22:44:33,575 INFO L226 Difference]: Without dead ends: 2750 [2021-03-10 22:44:33,575 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 761 ImplicationChecksByTransitivity, 641.2ms TimeCoverageRelationStatistics Valid=662, Invalid=1990, Unknown=0, NotChecked=0, Total=2652 [2021-03-10 22:44:33,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2750 states. [2021-03-10 22:44:33,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2750 to 2206. [2021-03-10 22:44:33,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 2205 states have (on average 2.510204081632653) internal successors, (5535), 2205 states have internal predecessors, (5535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:33,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 5535 transitions. [2021-03-10 22:44:33,622 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 5535 transitions. Word has length 28 [2021-03-10 22:44:33,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:33,622 INFO L480 AbstractCegarLoop]: Abstraction has 2206 states and 5535 transitions. [2021-03-10 22:44:33,622 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.3) internal successors, (46), 19 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:33,622 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 5535 transitions. [2021-03-10 22:44:33,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-10 22:44:33,626 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:33,626 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:33,848 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2021-03-10 22:44:33,849 INFO L428 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:33,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:33,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1945988538, now seen corresponding path program 45 times [2021-03-10 22:44:33,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:33,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100428247] [2021-03-10 22:44:33,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:33,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:33,929 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:33,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100428247] [2021-03-10 22:44:33,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38630247] [2021-03-10 22:44:33,930 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-10 22:44:33,967 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-03-10 22:44:33,968 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:33,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-10 22:44:33,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:34,159 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:34,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:34,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-03-10 22:44:34,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069128063] [2021-03-10 22:44:34,160 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-03-10 22:44:34,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:34,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-03-10 22:44:34,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2021-03-10 22:44:34,161 INFO L87 Difference]: Start difference. First operand 2206 states and 5535 transitions. Second operand has 21 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 20 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:35,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:35,025 INFO L93 Difference]: Finished difference Result 2769 states and 6659 transitions. [2021-03-10 22:44:35,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-03-10 22:44:35,025 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 20 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-10 22:44:35,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:35,029 INFO L225 Difference]: With dead ends: 2769 [2021-03-10 22:44:35,029 INFO L226 Difference]: Without dead ends: 2741 [2021-03-10 22:44:35,030 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 953 ImplicationChecksByTransitivity, 806.8ms TimeCoverageRelationStatistics Valid=778, Invalid=2414, Unknown=0, NotChecked=0, Total=3192 [2021-03-10 22:44:35,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2021-03-10 22:44:35,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 2259. [2021-03-10 22:44:35,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2259 states, 2258 states have (on average 2.5230292294065544) internal successors, (5697), 2258 states have internal predecessors, (5697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:35,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2259 states to 2259 states and 5697 transitions. [2021-03-10 22:44:35,066 INFO L78 Accepts]: Start accepts. Automaton has 2259 states and 5697 transitions. Word has length 28 [2021-03-10 22:44:35,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:35,066 INFO L480 AbstractCegarLoop]: Abstraction has 2259 states and 5697 transitions. [2021-03-10 22:44:35,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 20 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:35,066 INFO L276 IsEmpty]: Start isEmpty. Operand 2259 states and 5697 transitions. [2021-03-10 22:44:35,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-03-10 22:44:35,069 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:35,069 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:35,279 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2021-03-10 22:44:35,279 INFO L428 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:35,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:35,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1181662516, now seen corresponding path program 46 times [2021-03-10 22:44:35,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:35,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984932343] [2021-03-10 22:44:35,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:35,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:35,337 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:35,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984932343] [2021-03-10 22:44:35,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612672973] [2021-03-10 22:44:35,338 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-10 22:44:35,371 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 22:44:35,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:35,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-10 22:44:35,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:35,462 INFO L354 Elim1Store]: treesize reduction 16, result has 67.3 percent of original size [2021-03-10 22:44:35,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 65 [2021-03-10 22:44:35,464 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:35,482 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:44:35,483 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:44:35,483 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:92 [2021-03-10 22:44:35,961 INFO L354 Elim1Store]: treesize reduction 41, result has 16.3 percent of original size [2021-03-10 22:44:35,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 38 [2021-03-10 22:44:35,964 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:36,023 INFO L628 ElimStorePlain]: treesize reduction 51, result has 73.4 percent of original size [2021-03-10 22:44:36,043 INFO L354 Elim1Store]: treesize reduction 42, result has 14.3 percent of original size [2021-03-10 22:44:36,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 45 treesize of output 28 [2021-03-10 22:44:36,045 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:36,070 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:44:36,108 INFO L354 Elim1Store]: treesize reduction 24, result has 51.0 percent of original size [2021-03-10 22:44:36,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 52 [2021-03-10 22:44:36,111 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:36,120 INFO L628 ElimStorePlain]: treesize reduction 56, result has 5.1 percent of original size [2021-03-10 22:44:36,120 INFO L518 ElimStorePlain]: Eliminatee v_prenex_17 vanished before elimination [2021-03-10 22:44:36,121 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:44:36,121 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 8 variables, input treesize:242, output treesize:3 [2021-03-10 22:44:36,128 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:36,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:36,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 14 [2021-03-10 22:44:36,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860536790] [2021-03-10 22:44:36,129 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-10 22:44:36,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:36,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-10 22:44:36,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-03-10 22:44:36,129 INFO L87 Difference]: Start difference. First operand 2259 states and 5697 transitions. Second operand has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:36,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:36,371 INFO L93 Difference]: Finished difference Result 2998 states and 7342 transitions. [2021-03-10 22:44:36,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-10 22:44:36,371 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-03-10 22:44:36,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:36,376 INFO L225 Difference]: With dead ends: 2998 [2021-03-10 22:44:36,377 INFO L226 Difference]: Without dead ends: 2991 [2021-03-10 22:44:36,377 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 275.8ms TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-03-10 22:44:36,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states. [2021-03-10 22:44:36,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 2615. [2021-03-10 22:44:36,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2615 states, 2614 states have (on average 2.5355776587605203) internal successors, (6628), 2614 states have internal predecessors, (6628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:36,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2615 states to 2615 states and 6628 transitions. [2021-03-10 22:44:36,442 INFO L78 Accepts]: Start accepts. Automaton has 2615 states and 6628 transitions. Word has length 30 [2021-03-10 22:44:36,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:36,442 INFO L480 AbstractCegarLoop]: Abstraction has 2615 states and 6628 transitions. [2021-03-10 22:44:36,442 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:36,443 INFO L276 IsEmpty]: Start isEmpty. Operand 2615 states and 6628 transitions. [2021-03-10 22:44:36,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-03-10 22:44:36,447 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:36,447 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:36,667 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable113 [2021-03-10 22:44:36,667 INFO L428 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:36,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:36,668 INFO L82 PathProgramCache]: Analyzing trace with hash 61643060, now seen corresponding path program 47 times [2021-03-10 22:44:36,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:36,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416714320] [2021-03-10 22:44:36,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:36,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:36,708 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:44:36,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416714320] [2021-03-10 22:44:36,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477976679] [2021-03-10 22:44:36,708 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:36,730 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-03-10 22:44:36,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:36,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 31 conjunts are in the unsatisfiable core [2021-03-10 22:44:36,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:36,900 INFO L354 Elim1Store]: treesize reduction 114, result has 37.0 percent of original size [2021-03-10 22:44:36,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 15 case distinctions, treesize of input 82 treesize of output 99 [2021-03-10 22:44:36,903 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:36,922 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:44:36,923 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:44:36,924 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:82, output treesize:86 [2021-03-10 22:44:37,071 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-03-10 22:44:37,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 27 [2021-03-10 22:44:37,073 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:37,084 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-03-10 22:44:37,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 1 [2021-03-10 22:44:37,085 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:37,105 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-03-10 22:44:37,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 25 [2021-03-10 22:44:37,107 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:37,117 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-03-10 22:44:37,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 20 [2021-03-10 22:44:37,121 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:37,136 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-03-10 22:44:37,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 59 treesize of output 29 [2021-03-10 22:44:37,138 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:37,149 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-03-10 22:44:37,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 20 [2021-03-10 22:44:37,151 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:37,161 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-03-10 22:44:37,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 24 [2021-03-10 22:44:37,162 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:37,172 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-03-10 22:44:37,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 23 [2021-03-10 22:44:37,174 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:37,184 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-03-10 22:44:37,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 17 [2021-03-10 22:44:37,186 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:37,204 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-03-10 22:44:37,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 28 [2021-03-10 22:44:37,206 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:37,217 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-03-10 22:44:37,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 24 [2021-03-10 22:44:37,218 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:37,228 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-03-10 22:44:37,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 21 [2021-03-10 22:44:37,231 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:37,237 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-03-10 22:44:37,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 13 [2021-03-10 22:44:37,239 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:37,243 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-03-10 22:44:37,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 28 [2021-03-10 22:44:37,245 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:37,264 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:44:37,265 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:44:37,265 INFO L247 ElimStorePlain]: Needed 15 recursive calls to eliminate 2 variables, input treesize:623, output treesize:3 [2021-03-10 22:44:37,275 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:44:37,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:37,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 14 [2021-03-10 22:44:37,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734423111] [2021-03-10 22:44:37,276 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-10 22:44:37,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:37,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-10 22:44:37,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-03-10 22:44:37,277 INFO L87 Difference]: Start difference. First operand 2615 states and 6628 transitions. Second operand has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:37,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:37,431 INFO L93 Difference]: Finished difference Result 3125 states and 7770 transitions. [2021-03-10 22:44:37,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-10 22:44:37,432 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-03-10 22:44:37,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:37,438 INFO L225 Difference]: With dead ends: 3125 [2021-03-10 22:44:37,438 INFO L226 Difference]: Without dead ends: 3109 [2021-03-10 22:44:37,438 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 128.6ms TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-03-10 22:44:37,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2021-03-10 22:44:37,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 2831. [2021-03-10 22:44:37,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2831 states, 2830 states have (on average 2.5547703180212014) internal successors, (7230), 2830 states have internal predecessors, (7230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:37,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2831 states to 2831 states and 7230 transitions. [2021-03-10 22:44:37,495 INFO L78 Accepts]: Start accepts. Automaton has 2831 states and 7230 transitions. Word has length 30 [2021-03-10 22:44:37,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:37,495 INFO L480 AbstractCegarLoop]: Abstraction has 2831 states and 7230 transitions. [2021-03-10 22:44:37,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:37,495 INFO L276 IsEmpty]: Start isEmpty. Operand 2831 states and 7230 transitions. [2021-03-10 22:44:37,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-03-10 22:44:37,500 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:37,500 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:37,711 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:37,711 INFO L428 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:37,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:37,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1458216244, now seen corresponding path program 48 times [2021-03-10 22:44:37,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:37,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952294386] [2021-03-10 22:44:37,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:37,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:37,746 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:44:37,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952294386] [2021-03-10 22:44:37,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252871756] [2021-03-10 22:44:37,747 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:37,784 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-03-10 22:44:37,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:37,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 31 conjunts are in the unsatisfiable core [2021-03-10 22:44:37,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:37,924 INFO L446 ElimStorePlain]: Different costs {10=[f], 15=[f_inv]} [2021-03-10 22:44:37,959 INFO L354 Elim1Store]: treesize reduction 45, result has 44.4 percent of original size [2021-03-10 22:44:37,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 123 treesize of output 96 [2021-03-10 22:44:38,036 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 22:44:38,076 INFO L628 ElimStorePlain]: treesize reduction 11, result has 91.0 percent of original size [2021-03-10 22:44:38,102 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:44:38,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 111 treesize of output 96 [2021-03-10 22:44:38,146 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:38,152 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:44:38,153 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:44:38,153 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:123, output treesize:3 [2021-03-10 22:44:38,164 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:44:38,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:38,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 14 [2021-03-10 22:44:38,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940939022] [2021-03-10 22:44:38,165 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-10 22:44:38,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:38,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-10 22:44:38,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-03-10 22:44:38,165 INFO L87 Difference]: Start difference. First operand 2831 states and 7230 transitions. Second operand has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:38,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:38,282 INFO L93 Difference]: Finished difference Result 3299 states and 8293 transitions. [2021-03-10 22:44:38,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-10 22:44:38,283 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-03-10 22:44:38,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:38,289 INFO L225 Difference]: With dead ends: 3299 [2021-03-10 22:44:38,289 INFO L226 Difference]: Without dead ends: 3281 [2021-03-10 22:44:38,289 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 116.5ms TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-03-10 22:44:38,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3281 states. [2021-03-10 22:44:38,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3281 to 3017. [2021-03-10 22:44:38,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3017 states, 3016 states have (on average 2.570954907161804) internal successors, (7754), 3016 states have internal predecessors, (7754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:38,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3017 states to 3017 states and 7754 transitions. [2021-03-10 22:44:38,355 INFO L78 Accepts]: Start accepts. Automaton has 3017 states and 7754 transitions. Word has length 30 [2021-03-10 22:44:38,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:38,355 INFO L480 AbstractCegarLoop]: Abstraction has 3017 states and 7754 transitions. [2021-03-10 22:44:38,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:38,355 INFO L276 IsEmpty]: Start isEmpty. Operand 3017 states and 7754 transitions. [2021-03-10 22:44:38,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-03-10 22:44:38,360 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:38,360 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:38,561 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154,49 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:38,561 INFO L428 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:38,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:38,562 INFO L82 PathProgramCache]: Analyzing trace with hash -759717580, now seen corresponding path program 49 times [2021-03-10 22:44:38,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:38,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958056620] [2021-03-10 22:44:38,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:38,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:38,598 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:44:38,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958056620] [2021-03-10 22:44:38,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022450790] [2021-03-10 22:44:38,599 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:38,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-10 22:44:38,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:38,749 INFO L354 Elim1Store]: treesize reduction 16, result has 70.9 percent of original size [2021-03-10 22:44:38,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 69 [2021-03-10 22:44:38,751 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:38,769 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:44:38,770 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:44:38,770 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:78, output treesize:96 [2021-03-10 22:44:39,138 INFO L446 ElimStorePlain]: Different costs {3=[v_prenex_28], 6=[f, v_prenex_27, v_prenex_26]} [2021-03-10 22:44:39,171 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-03-10 22:44:39,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 25 [2021-03-10 22:44:39,173 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:39,236 INFO L628 ElimStorePlain]: treesize reduction 57, result has 69.7 percent of original size [2021-03-10 22:44:39,277 INFO L354 Elim1Store]: treesize reduction 24, result has 51.0 percent of original size [2021-03-10 22:44:39,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 49 [2021-03-10 22:44:39,280 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:39,303 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:44:39,316 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-03-10 22:44:39,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 28 [2021-03-10 22:44:39,318 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:39,333 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:44:39,347 INFO L354 Elim1Store]: treesize reduction 42, result has 14.3 percent of original size [2021-03-10 22:44:39,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 26 [2021-03-10 22:44:39,349 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:39,362 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:44:39,364 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:44:39,364 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:240, output treesize:3 [2021-03-10 22:44:39,374 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:44:39,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:39,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 14 [2021-03-10 22:44:39,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428014999] [2021-03-10 22:44:39,374 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-10 22:44:39,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:39,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-10 22:44:39,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-03-10 22:44:39,375 INFO L87 Difference]: Start difference. First operand 3017 states and 7754 transitions. Second operand has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:39,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:39,629 INFO L93 Difference]: Finished difference Result 3711 states and 9322 transitions. [2021-03-10 22:44:39,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-10 22:44:39,629 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-03-10 22:44:39,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:39,637 INFO L225 Difference]: With dead ends: 3711 [2021-03-10 22:44:39,637 INFO L226 Difference]: Without dead ends: 3682 [2021-03-10 22:44:39,637 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 252.1ms TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-03-10 22:44:39,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3682 states. [2021-03-10 22:44:39,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3682 to 3254. [2021-03-10 22:44:39,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3254 states, 3253 states have (on average 2.5853058715032278) internal successors, (8410), 3253 states have internal predecessors, (8410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:39,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3254 states to 3254 states and 8410 transitions. [2021-03-10 22:44:39,720 INFO L78 Accepts]: Start accepts. Automaton has 3254 states and 8410 transitions. Word has length 30 [2021-03-10 22:44:39,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:39,720 INFO L480 AbstractCegarLoop]: Abstraction has 3254 states and 8410 transitions. [2021-03-10 22:44:39,721 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:39,721 INFO L276 IsEmpty]: Start isEmpty. Operand 3254 states and 8410 transitions. [2021-03-10 22:44:39,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-03-10 22:44:39,726 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:39,726 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:39,939 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187,50 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:39,939 INFO L428 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:39,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:39,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1890343628, now seen corresponding path program 50 times [2021-03-10 22:44:39,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:39,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105290592] [2021-03-10 22:44:39,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:39,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:39,976 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:44:39,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105290592] [2021-03-10 22:44:39,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563598440] [2021-03-10 22:44:39,976 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:40,004 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 22:44:40,004 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:40,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-10 22:44:40,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:40,089 INFO L354 Elim1Store]: treesize reduction 16, result has 67.3 percent of original size [2021-03-10 22:44:40,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 65 [2021-03-10 22:44:40,092 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:40,107 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:44:40,108 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:44:40,108 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:92 [2021-03-10 22:44:40,605 INFO L354 Elim1Store]: treesize reduction 46, result has 6.1 percent of original size [2021-03-10 22:44:40,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 57 treesize of output 33 [2021-03-10 22:44:40,607 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:40,670 INFO L628 ElimStorePlain]: treesize reduction 52, result has 72.9 percent of original size [2021-03-10 22:44:40,709 INFO L354 Elim1Store]: treesize reduction 24, result has 51.0 percent of original size [2021-03-10 22:44:40,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 52 [2021-03-10 22:44:40,714 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 22:44:40,724 INFO L628 ElimStorePlain]: treesize reduction 93, result has 3.1 percent of original size [2021-03-10 22:44:40,724 INFO L518 ElimStorePlain]: Eliminatee v_prenex_35 vanished before elimination [2021-03-10 22:44:40,724 INFO L518 ElimStorePlain]: Eliminatee v_prenex_37 vanished before elimination [2021-03-10 22:44:40,725 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:44:40,725 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:242, output treesize:3 [2021-03-10 22:44:40,737 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:44:40,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:40,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 14 [2021-03-10 22:44:40,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506064027] [2021-03-10 22:44:40,738 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-10 22:44:40,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:40,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-10 22:44:40,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-03-10 22:44:40,738 INFO L87 Difference]: Start difference. First operand 3254 states and 8410 transitions. Second operand has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:41,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:41,007 INFO L93 Difference]: Finished difference Result 3930 states and 9906 transitions. [2021-03-10 22:44:41,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-10 22:44:41,008 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-03-10 22:44:41,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:41,016 INFO L225 Difference]: With dead ends: 3930 [2021-03-10 22:44:41,016 INFO L226 Difference]: Without dead ends: 3923 [2021-03-10 22:44:41,016 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 297.8ms TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-03-10 22:44:41,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3923 states. [2021-03-10 22:44:41,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3923 to 3481. [2021-03-10 22:44:41,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3481 states, 3480 states have (on average 2.5977011494252875) internal successors, (9040), 3480 states have internal predecessors, (9040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:41,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3481 states to 3481 states and 9040 transitions. [2021-03-10 22:44:41,104 INFO L78 Accepts]: Start accepts. Automaton has 3481 states and 9040 transitions. Word has length 30 [2021-03-10 22:44:41,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:41,104 INFO L480 AbstractCegarLoop]: Abstraction has 3481 states and 9040 transitions. [2021-03-10 22:44:41,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:41,104 INFO L276 IsEmpty]: Start isEmpty. Operand 3481 states and 9040 transitions. [2021-03-10 22:44:41,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-03-10 22:44:41,109 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:41,109 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:41,335 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable201 [2021-03-10 22:44:41,335 INFO L428 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:41,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:41,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1501992374, now seen corresponding path program 51 times [2021-03-10 22:44:41,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:41,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379805159] [2021-03-10 22:44:41,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:41,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:41,498 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:41,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379805159] [2021-03-10 22:44:41,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558088232] [2021-03-10 22:44:41,499 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:41,536 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-03-10 22:44:41,536 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:41,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-10 22:44:41,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:41,765 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:41,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:41,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 25 [2021-03-10 22:44:41,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906485427] [2021-03-10 22:44:41,766 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 22:44:41,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:41,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 22:44:41,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2021-03-10 22:44:41,767 INFO L87 Difference]: Start difference. First operand 3481 states and 9040 transitions. Second operand has 26 states, 26 states have (on average 2.230769230769231) internal successors, (58), 25 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:43,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:43,043 INFO L93 Difference]: Finished difference Result 4394 states and 10868 transitions. [2021-03-10 22:44:43,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-03-10 22:44:43,044 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.230769230769231) internal successors, (58), 25 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-03-10 22:44:43,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:43,050 INFO L225 Difference]: With dead ends: 4394 [2021-03-10 22:44:43,050 INFO L226 Difference]: Without dead ends: 4394 [2021-03-10 22:44:43,051 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1271 ImplicationChecksByTransitivity, 1166.6ms TimeCoverageRelationStatistics Valid=1299, Invalid=3671, Unknown=0, NotChecked=0, Total=4970 [2021-03-10 22:44:43,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4394 states. [2021-03-10 22:44:43,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4394 to 3164. [2021-03-10 22:44:43,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3164 states, 3163 states have (on average 2.5861523869743914) internal successors, (8180), 3163 states have internal predecessors, (8180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:43,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3164 states to 3164 states and 8180 transitions. [2021-03-10 22:44:43,106 INFO L78 Accepts]: Start accepts. Automaton has 3164 states and 8180 transitions. Word has length 32 [2021-03-10 22:44:43,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:43,107 INFO L480 AbstractCegarLoop]: Abstraction has 3164 states and 8180 transitions. [2021-03-10 22:44:43,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.230769230769231) internal successors, (58), 25 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:43,107 INFO L276 IsEmpty]: Start isEmpty. Operand 3164 states and 8180 transitions. [2021-03-10 22:44:43,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-03-10 22:44:43,112 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:43,112 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:43,327 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable216 [2021-03-10 22:44:43,327 INFO L428 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:43,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:43,328 INFO L82 PathProgramCache]: Analyzing trace with hash 783257330, now seen corresponding path program 52 times [2021-03-10 22:44:43,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:43,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504309091] [2021-03-10 22:44:43,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:43,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:43,419 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:43,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504309091] [2021-03-10 22:44:43,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249130504] [2021-03-10 22:44:43,419 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:43,439 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 22:44:43,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:43,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-10 22:44:43,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:43,645 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:43,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:43,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-03-10 22:44:43,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638472671] [2021-03-10 22:44:43,645 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 22:44:43,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:43,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 22:44:43,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=492, Unknown=0, NotChecked=0, Total=600 [2021-03-10 22:44:43,646 INFO L87 Difference]: Start difference. First operand 3164 states and 8180 transitions. Second operand has 25 states, 25 states have (on average 2.24) internal successors, (56), 24 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:45,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:45,317 INFO L93 Difference]: Finished difference Result 5243 states and 12644 transitions. [2021-03-10 22:44:45,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-03-10 22:44:45,318 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.24) internal successors, (56), 24 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-03-10 22:44:45,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:45,326 INFO L225 Difference]: With dead ends: 5243 [2021-03-10 22:44:45,326 INFO L226 Difference]: Without dead ends: 5139 [2021-03-10 22:44:45,327 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2425 ImplicationChecksByTransitivity, 1526.5ms TimeCoverageRelationStatistics Valid=1756, Invalid=6076, Unknown=0, NotChecked=0, Total=7832 [2021-03-10 22:44:45,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5139 states. [2021-03-10 22:44:45,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5139 to 3339. [2021-03-10 22:44:45,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3339 states, 3338 states have (on average 2.5820850808867584) internal successors, (8619), 3338 states have internal predecessors, (8619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:45,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3339 states to 3339 states and 8619 transitions. [2021-03-10 22:44:45,396 INFO L78 Accepts]: Start accepts. Automaton has 3339 states and 8619 transitions. Word has length 32 [2021-03-10 22:44:45,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:45,396 INFO L480 AbstractCegarLoop]: Abstraction has 3339 states and 8619 transitions. [2021-03-10 22:44:45,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.24) internal successors, (56), 24 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:45,396 INFO L276 IsEmpty]: Start isEmpty. Operand 3339 states and 8619 transitions. [2021-03-10 22:44:45,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-03-10 22:44:45,400 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:45,400 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:45,600 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable217 [2021-03-10 22:44:45,600 INFO L428 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:45,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:45,601 INFO L82 PathProgramCache]: Analyzing trace with hash 325676430, now seen corresponding path program 53 times [2021-03-10 22:44:45,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:45,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561093524] [2021-03-10 22:44:45,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:45,670 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:45,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561093524] [2021-03-10 22:44:45,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36353617] [2021-03-10 22:44:45,671 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:45,713 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-03-10 22:44:45,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:45,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-10 22:44:45,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:45,921 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:45,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:45,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13] total 20 [2021-03-10 22:44:45,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262407082] [2021-03-10 22:44:45,922 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-03-10 22:44:45,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:45,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-03-10 22:44:45,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2021-03-10 22:44:45,922 INFO L87 Difference]: Start difference. First operand 3339 states and 8619 transitions. Second operand has 21 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 20 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:47,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:47,309 INFO L93 Difference]: Finished difference Result 6359 states and 15875 transitions. [2021-03-10 22:44:47,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-03-10 22:44:47,310 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 20 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-03-10 22:44:47,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:47,321 INFO L225 Difference]: With dead ends: 6359 [2021-03-10 22:44:47,321 INFO L226 Difference]: Without dead ends: 6347 [2021-03-10 22:44:47,323 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1905 ImplicationChecksByTransitivity, 1211.0ms TimeCoverageRelationStatistics Valid=1604, Invalid=4248, Unknown=0, NotChecked=0, Total=5852 [2021-03-10 22:44:47,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6347 states. [2021-03-10 22:44:47,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6347 to 4305. [2021-03-10 22:44:47,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4305 states, 4304 states have (on average 2.5820167286245352) internal successors, (11113), 4304 states have internal predecessors, (11113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:47,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4305 states to 4305 states and 11113 transitions. [2021-03-10 22:44:47,421 INFO L78 Accepts]: Start accepts. Automaton has 4305 states and 11113 transitions. Word has length 32 [2021-03-10 22:44:47,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:47,421 INFO L480 AbstractCegarLoop]: Abstraction has 4305 states and 11113 transitions. [2021-03-10 22:44:47,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 20 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:47,422 INFO L276 IsEmpty]: Start isEmpty. Operand 4305 states and 11113 transitions. [2021-03-10 22:44:47,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-03-10 22:44:47,428 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:47,428 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:47,639 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable218 [2021-03-10 22:44:47,639 INFO L428 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:47,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:47,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1058221652, now seen corresponding path program 54 times [2021-03-10 22:44:47,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:47,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654846863] [2021-03-10 22:44:47,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:47,714 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 21 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:47,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654846863] [2021-03-10 22:44:47,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016639982] [2021-03-10 22:44:47,714 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:47,775 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-03-10 22:44:47,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:47,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-10 22:44:47,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:48,011 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 21 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:48,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:48,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13] total 20 [2021-03-10 22:44:48,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035212896] [2021-03-10 22:44:48,011 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-03-10 22:44:48,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:48,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-03-10 22:44:48,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2021-03-10 22:44:48,012 INFO L87 Difference]: Start difference. First operand 4305 states and 11113 transitions. Second operand has 21 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 20 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:49,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:49,040 INFO L93 Difference]: Finished difference Result 4664 states and 11802 transitions. [2021-03-10 22:44:49,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-03-10 22:44:49,041 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 20 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-03-10 22:44:49,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:49,047 INFO L225 Difference]: With dead ends: 4664 [2021-03-10 22:44:49,047 INFO L226 Difference]: Without dead ends: 4660 [2021-03-10 22:44:49,048 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1283 ImplicationChecksByTransitivity, 994.5ms TimeCoverageRelationStatistics Valid=1088, Invalid=3334, Unknown=0, NotChecked=0, Total=4422 [2021-03-10 22:44:49,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4660 states. [2021-03-10 22:44:49,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4660 to 4305. [2021-03-10 22:44:49,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4305 states, 4304 states have (on average 2.5810873605947955) internal successors, (11109), 4304 states have internal predecessors, (11109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:49,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4305 states to 4305 states and 11109 transitions. [2021-03-10 22:44:49,123 INFO L78 Accepts]: Start accepts. Automaton has 4305 states and 11109 transitions. Word has length 32 [2021-03-10 22:44:49,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:49,123 INFO L480 AbstractCegarLoop]: Abstraction has 4305 states and 11109 transitions. [2021-03-10 22:44:49,123 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 20 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:49,123 INFO L276 IsEmpty]: Start isEmpty. Operand 4305 states and 11109 transitions. [2021-03-10 22:44:49,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-03-10 22:44:49,128 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:49,128 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:49,328 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219,55 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:49,328 INFO L428 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:49,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:49,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1813615886, now seen corresponding path program 55 times [2021-03-10 22:44:49,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:49,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652864239] [2021-03-10 22:44:49,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:49,422 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 27 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:44:49,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652864239] [2021-03-10 22:44:49,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095558580] [2021-03-10 22:44:49,423 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:49,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-10 22:44:49,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:49,680 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 21 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:49,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:49,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13] total 20 [2021-03-10 22:44:49,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112503032] [2021-03-10 22:44:49,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-03-10 22:44:49,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:49,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-03-10 22:44:49,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2021-03-10 22:44:49,681 INFO L87 Difference]: Start difference. First operand 4305 states and 11109 transitions. Second operand has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:50,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:50,612 INFO L93 Difference]: Finished difference Result 5836 states and 14714 transitions. [2021-03-10 22:44:50,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-03-10 22:44:50,612 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-03-10 22:44:50,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:50,620 INFO L225 Difference]: With dead ends: 5836 [2021-03-10 22:44:50,620 INFO L226 Difference]: Without dead ends: 5818 [2021-03-10 22:44:50,620 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 813 ImplicationChecksByTransitivity, 782.9ms TimeCoverageRelationStatistics Valid=721, Invalid=2249, Unknown=0, NotChecked=0, Total=2970 [2021-03-10 22:44:50,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5818 states. [2021-03-10 22:44:50,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5818 to 4428. [2021-03-10 22:44:50,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4428 states, 4427 states have (on average 2.5897899254574206) internal successors, (11465), 4427 states have internal predecessors, (11465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:50,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4428 states to 4428 states and 11465 transitions. [2021-03-10 22:44:50,704 INFO L78 Accepts]: Start accepts. Automaton has 4428 states and 11465 transitions. Word has length 32 [2021-03-10 22:44:50,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:50,704 INFO L480 AbstractCegarLoop]: Abstraction has 4428 states and 11465 transitions. [2021-03-10 22:44:50,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:50,705 INFO L276 IsEmpty]: Start isEmpty. Operand 4428 states and 11465 transitions. [2021-03-10 22:44:50,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-03-10 22:44:50,709 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:50,709 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:50,923 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:50,923 INFO L428 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:50,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:50,924 INFO L82 PathProgramCache]: Analyzing trace with hash -673820798, now seen corresponding path program 56 times [2021-03-10 22:44:50,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:50,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576915870] [2021-03-10 22:44:50,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:50,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:50,998 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:50,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576915870] [2021-03-10 22:44:50,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384873302] [2021-03-10 22:44:50,999 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-10 22:44:51,040 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 22:44:51,040 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:51,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-10 22:44:51,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:51,288 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:51,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:51,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 21 [2021-03-10 22:44:51,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219841554] [2021-03-10 22:44:51,289 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-03-10 22:44:51,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:51,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-03-10 22:44:51,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2021-03-10 22:44:51,290 INFO L87 Difference]: Start difference. First operand 4428 states and 11465 transitions. Second operand has 22 states, 22 states have (on average 2.4545454545454546) internal successors, (54), 21 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:52,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:52,423 INFO L93 Difference]: Finished difference Result 5254 states and 13180 transitions. [2021-03-10 22:44:52,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-03-10 22:44:52,423 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.4545454545454546) internal successors, (54), 21 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-03-10 22:44:52,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:52,432 INFO L225 Difference]: With dead ends: 5254 [2021-03-10 22:44:52,432 INFO L226 Difference]: Without dead ends: 5238 [2021-03-10 22:44:52,433 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1414 ImplicationChecksByTransitivity, 1041.0ms TimeCoverageRelationStatistics Valid=1130, Invalid=3562, Unknown=0, NotChecked=0, Total=4692 [2021-03-10 22:44:52,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5238 states. [2021-03-10 22:44:52,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5238 to 4516. [2021-03-10 22:44:52,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4516 states, 4515 states have (on average 2.5918050941306756) internal successors, (11702), 4515 states have internal predecessors, (11702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:52,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4516 states to 4516 states and 11702 transitions. [2021-03-10 22:44:52,529 INFO L78 Accepts]: Start accepts. Automaton has 4516 states and 11702 transitions. Word has length 32 [2021-03-10 22:44:52,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:52,529 INFO L480 AbstractCegarLoop]: Abstraction has 4516 states and 11702 transitions. [2021-03-10 22:44:52,529 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.4545454545454546) internal successors, (54), 21 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:52,529 INFO L276 IsEmpty]: Start isEmpty. Operand 4516 states and 11702 transitions. [2021-03-10 22:44:52,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-03-10 22:44:52,535 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:52,535 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:52,743 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable221 [2021-03-10 22:44:52,743 INFO L428 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:52,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:52,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1175991294, now seen corresponding path program 57 times [2021-03-10 22:44:52,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:52,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126816971] [2021-03-10 22:44:52,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:52,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:52,826 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:52,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126816971] [2021-03-10 22:44:52,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328983978] [2021-03-10 22:44:52,826 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:52,864 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-03-10 22:44:52,864 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:52,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-10 22:44:52,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:53,092 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:53,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:53,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 22 [2021-03-10 22:44:53,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586003784] [2021-03-10 22:44:53,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-10 22:44:53,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:53,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-10 22:44:53,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2021-03-10 22:44:53,094 INFO L87 Difference]: Start difference. First operand 4516 states and 11702 transitions. Second operand has 23 states, 23 states have (on average 2.347826086956522) internal successors, (54), 22 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:54,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:54,122 INFO L93 Difference]: Finished difference Result 5594 states and 13918 transitions. [2021-03-10 22:44:54,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-03-10 22:44:54,122 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.347826086956522) internal successors, (54), 22 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-03-10 22:44:54,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:54,128 INFO L225 Difference]: With dead ends: 5594 [2021-03-10 22:44:54,129 INFO L226 Difference]: Without dead ends: 5566 [2021-03-10 22:44:54,129 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1574 ImplicationChecksByTransitivity, 941.0ms TimeCoverageRelationStatistics Valid=1183, Invalid=3787, Unknown=0, NotChecked=0, Total=4970 [2021-03-10 22:44:54,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5566 states. [2021-03-10 22:44:54,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5566 to 4347. [2021-03-10 22:44:54,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4347 states, 4346 states have (on average 2.588587206626783) internal successors, (11250), 4346 states have internal predecessors, (11250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:54,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4347 states to 4347 states and 11250 transitions. [2021-03-10 22:44:54,183 INFO L78 Accepts]: Start accepts. Automaton has 4347 states and 11250 transitions. Word has length 32 [2021-03-10 22:44:54,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:54,183 INFO L480 AbstractCegarLoop]: Abstraction has 4347 states and 11250 transitions. [2021-03-10 22:44:54,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.347826086956522) internal successors, (54), 22 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:54,183 INFO L276 IsEmpty]: Start isEmpty. Operand 4347 states and 11250 transitions. [2021-03-10 22:44:54,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-03-10 22:44:54,187 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:54,187 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:54,388 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:54,388 INFO L428 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:54,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:54,388 INFO L82 PathProgramCache]: Analyzing trace with hash 728951162, now seen corresponding path program 58 times [2021-03-10 22:44:54,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:54,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734498529] [2021-03-10 22:44:54,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:54,470 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:54,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734498529] [2021-03-10 22:44:54,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141264217] [2021-03-10 22:44:54,470 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-10 22:44:54,508 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 22:44:54,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:54,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-10 22:44:54,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:54,744 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:54,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:54,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 23 [2021-03-10 22:44:54,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306942629] [2021-03-10 22:44:54,744 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-10 22:44:54,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:54,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-10 22:44:54,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2021-03-10 22:44:54,745 INFO L87 Difference]: Start difference. First operand 4347 states and 11250 transitions. Second operand has 24 states, 24 states have (on average 2.25) internal successors, (54), 23 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:55,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:55,886 INFO L93 Difference]: Finished difference Result 5720 states and 14080 transitions. [2021-03-10 22:44:55,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-03-10 22:44:55,886 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.25) internal successors, (54), 23 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-03-10 22:44:55,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:55,892 INFO L225 Difference]: With dead ends: 5720 [2021-03-10 22:44:55,892 INFO L226 Difference]: Without dead ends: 5686 [2021-03-10 22:44:55,893 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1700 ImplicationChecksByTransitivity, 1044.3ms TimeCoverageRelationStatistics Valid=1246, Invalid=4010, Unknown=0, NotChecked=0, Total=5256 [2021-03-10 22:44:55,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5686 states. [2021-03-10 22:44:55,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5686 to 3872. [2021-03-10 22:44:55,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3872 states, 3871 states have (on average 2.579178506845776) internal successors, (9984), 3871 states have internal predecessors, (9984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:55,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3872 states to 3872 states and 9984 transitions. [2021-03-10 22:44:55,974 INFO L78 Accepts]: Start accepts. Automaton has 3872 states and 9984 transitions. Word has length 32 [2021-03-10 22:44:55,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:55,974 INFO L480 AbstractCegarLoop]: Abstraction has 3872 states and 9984 transitions. [2021-03-10 22:44:55,974 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.25) internal successors, (54), 23 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:55,974 INFO L276 IsEmpty]: Start isEmpty. Operand 3872 states and 9984 transitions. [2021-03-10 22:44:55,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-03-10 22:44:55,977 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:55,978 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:56,191 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable223 [2021-03-10 22:44:56,191 INFO L428 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:56,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:56,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1717407562, now seen corresponding path program 59 times [2021-03-10 22:44:56,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:56,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064242046] [2021-03-10 22:44:56,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:56,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:56,287 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:44:56,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064242046] [2021-03-10 22:44:56,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543798481] [2021-03-10 22:44:56,288 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:56,317 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-03-10 22:44:56,317 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:56,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-10 22:44:56,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:56,507 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 12 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:56,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:56,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-03-10 22:44:56,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767080991] [2021-03-10 22:44:56,508 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 22:44:56,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:56,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 22:44:56,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2021-03-10 22:44:56,508 INFO L87 Difference]: Start difference. First operand 3872 states and 9984 transitions. Second operand has 25 states, 25 states have (on average 2.28) internal successors, (57), 24 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:57,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:57,633 INFO L93 Difference]: Finished difference Result 5197 states and 12616 transitions. [2021-03-10 22:44:57,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-03-10 22:44:57,634 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.28) internal successors, (57), 24 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-03-10 22:44:57,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:57,638 INFO L225 Difference]: With dead ends: 5197 [2021-03-10 22:44:57,638 INFO L226 Difference]: Without dead ends: 5197 [2021-03-10 22:44:57,638 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1355 ImplicationChecksByTransitivity, 985.1ms TimeCoverageRelationStatistics Valid=1262, Invalid=3708, Unknown=0, NotChecked=0, Total=4970 [2021-03-10 22:44:57,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5197 states. [2021-03-10 22:44:57,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5197 to 3402. [2021-03-10 22:44:57,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3402 states, 3401 states have (on average 2.5633637165539547) internal successors, (8718), 3401 states have internal predecessors, (8718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:57,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3402 states to 3402 states and 8718 transitions. [2021-03-10 22:44:57,674 INFO L78 Accepts]: Start accepts. Automaton has 3402 states and 8718 transitions. Word has length 32 [2021-03-10 22:44:57,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:57,674 INFO L480 AbstractCegarLoop]: Abstraction has 3402 states and 8718 transitions. [2021-03-10 22:44:57,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.28) internal successors, (57), 24 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:57,674 INFO L276 IsEmpty]: Start isEmpty. Operand 3402 states and 8718 transitions. [2021-03-10 22:44:57,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-03-10 22:44:57,677 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:57,677 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:57,877 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable224 [2021-03-10 22:44:57,877 INFO L428 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:57,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:57,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1240500466, now seen corresponding path program 60 times [2021-03-10 22:44:57,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:57,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064393964] [2021-03-10 22:44:57,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:57,964 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:44:57,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064393964] [2021-03-10 22:44:57,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608068180] [2021-03-10 22:44:57,964 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:57,991 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-03-10 22:44:57,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:44:57,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-10 22:44:57,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:44:58,241 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:44:58,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:44:58,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 23 [2021-03-10 22:44:58,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529137209] [2021-03-10 22:44:58,242 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-10 22:44:58,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:44:58,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-10 22:44:58,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=453, Unknown=0, NotChecked=0, Total=552 [2021-03-10 22:44:58,242 INFO L87 Difference]: Start difference. First operand 3402 states and 8718 transitions. Second operand has 24 states, 24 states have (on average 2.2916666666666665) internal successors, (55), 23 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:59,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:44:59,414 INFO L93 Difference]: Finished difference Result 4252 states and 10318 transitions. [2021-03-10 22:44:59,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-03-10 22:44:59,414 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.2916666666666665) internal successors, (55), 23 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-03-10 22:44:59,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:44:59,419 INFO L225 Difference]: With dead ends: 4252 [2021-03-10 22:44:59,419 INFO L226 Difference]: Without dead ends: 4186 [2021-03-10 22:44:59,419 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1720 ImplicationChecksByTransitivity, 1027.5ms TimeCoverageRelationStatistics Valid=1147, Invalid=4109, Unknown=0, NotChecked=0, Total=5256 [2021-03-10 22:44:59,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4186 states. [2021-03-10 22:44:59,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4186 to 3264. [2021-03-10 22:44:59,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3264 states, 3263 states have (on average 2.5485749310450507) internal successors, (8316), 3263 states have internal predecessors, (8316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:59,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3264 states to 3264 states and 8316 transitions. [2021-03-10 22:44:59,486 INFO L78 Accepts]: Start accepts. Automaton has 3264 states and 8316 transitions. Word has length 32 [2021-03-10 22:44:59,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:44:59,486 INFO L480 AbstractCegarLoop]: Abstraction has 3264 states and 8316 transitions. [2021-03-10 22:44:59,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.2916666666666665) internal successors, (55), 23 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:44:59,487 INFO L276 IsEmpty]: Start isEmpty. Operand 3264 states and 8316 transitions. [2021-03-10 22:44:59,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-03-10 22:44:59,489 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:44:59,489 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:44:59,691 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable225 [2021-03-10 22:44:59,691 INFO L428 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:44:59,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:44:59,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1425607606, now seen corresponding path program 61 times [2021-03-10 22:44:59,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:44:59,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543545874] [2021-03-10 22:44:59,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:44:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:59,790 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 26 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:44:59,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543545874] [2021-03-10 22:44:59,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774683963] [2021-03-10 22:44:59,791 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:44:59,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:44:59,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-10 22:44:59,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:00,031 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 12 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:00,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:00,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 23 [2021-03-10 22:45:00,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393729242] [2021-03-10 22:45:00,031 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-10 22:45:00,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:00,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-10 22:45:00,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=452, Unknown=0, NotChecked=0, Total=552 [2021-03-10 22:45:00,032 INFO L87 Difference]: Start difference. First operand 3264 states and 8316 transitions. Second operand has 24 states, 24 states have (on average 2.375) internal successors, (57), 23 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:01,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:01,231 INFO L93 Difference]: Finished difference Result 4881 states and 11710 transitions. [2021-03-10 22:45:01,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-03-10 22:45:01,231 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.375) internal successors, (57), 23 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-03-10 22:45:01,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:01,236 INFO L225 Difference]: With dead ends: 4881 [2021-03-10 22:45:01,236 INFO L226 Difference]: Without dead ends: 4881 [2021-03-10 22:45:01,237 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1700 ImplicationChecksByTransitivity, 1058.9ms TimeCoverageRelationStatistics Valid=1473, Invalid=4077, Unknown=0, NotChecked=0, Total=5550 [2021-03-10 22:45:01,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4881 states. [2021-03-10 22:45:01,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4881 to 2860. [2021-03-10 22:45:01,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2860 states, 2859 states have (on average 2.5183630640083945) internal successors, (7200), 2859 states have internal predecessors, (7200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:01,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2860 states to 2860 states and 7200 transitions. [2021-03-10 22:45:01,286 INFO L78 Accepts]: Start accepts. Automaton has 2860 states and 7200 transitions. Word has length 32 [2021-03-10 22:45:01,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:01,286 INFO L480 AbstractCegarLoop]: Abstraction has 2860 states and 7200 transitions. [2021-03-10 22:45:01,286 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.375) internal successors, (57), 23 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:01,286 INFO L276 IsEmpty]: Start isEmpty. Operand 2860 states and 7200 transitions. [2021-03-10 22:45:01,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-03-10 22:45:01,288 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:01,288 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:01,489 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226,62 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:01,489 INFO L428 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:01,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:01,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1428685554, now seen corresponding path program 62 times [2021-03-10 22:45:01,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:01,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815072588] [2021-03-10 22:45:01,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:01,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:01,584 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:45:01,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815072588] [2021-03-10 22:45:01,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406996014] [2021-03-10 22:45:01,585 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:01,610 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 22:45:01,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:45:01,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-10 22:45:01,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:01,834 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:01,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:01,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 22 [2021-03-10 22:45:01,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082248014] [2021-03-10 22:45:01,834 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-10 22:45:01,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:01,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-10 22:45:01,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2021-03-10 22:45:01,835 INFO L87 Difference]: Start difference. First operand 2860 states and 7200 transitions. Second operand has 23 states, 23 states have (on average 2.391304347826087) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:02,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:02,860 INFO L93 Difference]: Finished difference Result 3661 states and 8825 transitions. [2021-03-10 22:45:02,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-03-10 22:45:02,861 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.391304347826087) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-03-10 22:45:02,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:02,864 INFO L225 Difference]: With dead ends: 3661 [2021-03-10 22:45:02,864 INFO L226 Difference]: Without dead ends: 3622 [2021-03-10 22:45:02,865 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1460 ImplicationChecksByTransitivity, 909.6ms TimeCoverageRelationStatistics Valid=968, Invalid=3454, Unknown=0, NotChecked=0, Total=4422 [2021-03-10 22:45:02,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2021-03-10 22:45:02,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 2809. [2021-03-10 22:45:02,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2809 states, 2808 states have (on average 2.508190883190883) internal successors, (7043), 2808 states have internal predecessors, (7043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:02,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2809 states to 2809 states and 7043 transitions. [2021-03-10 22:45:02,895 INFO L78 Accepts]: Start accepts. Automaton has 2809 states and 7043 transitions. Word has length 32 [2021-03-10 22:45:02,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:02,895 INFO L480 AbstractCegarLoop]: Abstraction has 2809 states and 7043 transitions. [2021-03-10 22:45:02,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.391304347826087) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:02,895 INFO L276 IsEmpty]: Start isEmpty. Operand 2809 states and 7043 transitions. [2021-03-10 22:45:02,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-03-10 22:45:02,897 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:02,897 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:03,097 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable227 [2021-03-10 22:45:03,097 INFO L428 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:03,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:03,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1690671434, now seen corresponding path program 63 times [2021-03-10 22:45:03,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:03,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124142533] [2021-03-10 22:45:03,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:03,190 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 13 proven. 27 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:45:03,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124142533] [2021-03-10 22:45:03,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200891805] [2021-03-10 22:45:03,190 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-10 22:45:03,224 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-03-10 22:45:03,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:45:03,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-10 22:45:03,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:03,443 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 12 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:03,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:03,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 22 [2021-03-10 22:45:03,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310554624] [2021-03-10 22:45:03,444 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-10 22:45:03,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:03,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-10 22:45:03,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2021-03-10 22:45:03,444 INFO L87 Difference]: Start difference. First operand 2809 states and 7043 transitions. Second operand has 23 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 22 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:04,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:04,755 INFO L93 Difference]: Finished difference Result 4911 states and 11694 transitions. [2021-03-10 22:45:04,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-03-10 22:45:04,755 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 22 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-03-10 22:45:04,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:04,760 INFO L225 Difference]: With dead ends: 4911 [2021-03-10 22:45:04,760 INFO L226 Difference]: Without dead ends: 4911 [2021-03-10 22:45:04,761 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2155 ImplicationChecksByTransitivity, 1195.5ms TimeCoverageRelationStatistics Valid=1768, Invalid=4552, Unknown=0, NotChecked=0, Total=6320 [2021-03-10 22:45:04,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4911 states. [2021-03-10 22:45:04,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4911 to 3307. [2021-03-10 22:45:04,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3307 states, 3306 states have (on average 2.481246218995765) internal successors, (8203), 3306 states have internal predecessors, (8203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:04,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3307 states to 3307 states and 8203 transitions. [2021-03-10 22:45:04,813 INFO L78 Accepts]: Start accepts. Automaton has 3307 states and 8203 transitions. Word has length 32 [2021-03-10 22:45:04,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:04,813 INFO L480 AbstractCegarLoop]: Abstraction has 3307 states and 8203 transitions. [2021-03-10 22:45:04,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 22 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:04,813 INFO L276 IsEmpty]: Start isEmpty. Operand 3307 states and 8203 transitions. [2021-03-10 22:45:04,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-03-10 22:45:04,815 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:04,816 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:05,016 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228,64 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:05,016 INFO L428 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:05,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:05,016 INFO L82 PathProgramCache]: Analyzing trace with hash -604635918, now seen corresponding path program 64 times [2021-03-10 22:45:05,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:05,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506822715] [2021-03-10 22:45:05,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:05,083 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:45:05,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506822715] [2021-03-10 22:45:05,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449429707] [2021-03-10 22:45:05,084 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:05,103 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 22:45:05,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:45:05,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-10 22:45:05,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:05,324 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:05,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:05,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 21 [2021-03-10 22:45:05,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763025024] [2021-03-10 22:45:05,325 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-03-10 22:45:05,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:05,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-03-10 22:45:05,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2021-03-10 22:45:05,326 INFO L87 Difference]: Start difference. First operand 3307 states and 8203 transitions. Second operand has 22 states, 22 states have (on average 2.5) internal successors, (55), 21 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:06,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:06,238 INFO L93 Difference]: Finished difference Result 3840 states and 9263 transitions. [2021-03-10 22:45:06,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-03-10 22:45:06,239 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.5) internal successors, (55), 21 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-03-10 22:45:06,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:06,243 INFO L225 Difference]: With dead ends: 3840 [2021-03-10 22:45:06,243 INFO L226 Difference]: Without dead ends: 3822 [2021-03-10 22:45:06,243 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1269 ImplicationChecksByTransitivity, 825.3ms TimeCoverageRelationStatistics Valid=879, Invalid=3027, Unknown=0, NotChecked=0, Total=3906 [2021-03-10 22:45:06,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3822 states. [2021-03-10 22:45:06,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3822 to 3381. [2021-03-10 22:45:06,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3381 states, 3380 states have (on average 2.486094674556213) internal successors, (8403), 3380 states have internal predecessors, (8403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:06,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3381 states to 3381 states and 8403 transitions. [2021-03-10 22:45:06,289 INFO L78 Accepts]: Start accepts. Automaton has 3381 states and 8403 transitions. Word has length 32 [2021-03-10 22:45:06,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:06,289 INFO L480 AbstractCegarLoop]: Abstraction has 3381 states and 8403 transitions. [2021-03-10 22:45:06,289 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.5) internal successors, (55), 21 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:06,289 INFO L276 IsEmpty]: Start isEmpty. Operand 3381 states and 8403 transitions. [2021-03-10 22:45:06,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-03-10 22:45:06,291 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:06,291 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:06,495 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229,65 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:06,496 INFO L428 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:06,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:06,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1474920010, now seen corresponding path program 65 times [2021-03-10 22:45:06,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:06,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91793581] [2021-03-10 22:45:06,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:06,562 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 12 proven. 28 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:45:06,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91793581] [2021-03-10 22:45:06,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743509383] [2021-03-10 22:45:06,562 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:06,585 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-03-10 22:45:06,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:45:06,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-10 22:45:06,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:06,795 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 12 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:06,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:06,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 21 [2021-03-10 22:45:06,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280005211] [2021-03-10 22:45:06,796 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-03-10 22:45:06,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:06,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-03-10 22:45:06,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2021-03-10 22:45:06,796 INFO L87 Difference]: Start difference. First operand 3381 states and 8403 transitions. Second operand has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:08,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:08,156 INFO L93 Difference]: Finished difference Result 6180 states and 15068 transitions. [2021-03-10 22:45:08,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-03-10 22:45:08,156 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-03-10 22:45:08,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:08,162 INFO L225 Difference]: With dead ends: 6180 [2021-03-10 22:45:08,162 INFO L226 Difference]: Without dead ends: 6180 [2021-03-10 22:45:08,163 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2540 ImplicationChecksByTransitivity, 1217.2ms TimeCoverageRelationStatistics Valid=2010, Invalid=4962, Unknown=0, NotChecked=0, Total=6972 [2021-03-10 22:45:08,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6180 states. [2021-03-10 22:45:08,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6180 to 5144. [2021-03-10 22:45:08,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5144 states, 5143 states have (on average 2.52109663620455) internal successors, (12966), 5143 states have internal predecessors, (12966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:08,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5144 states to 5144 states and 12966 transitions. [2021-03-10 22:45:08,236 INFO L78 Accepts]: Start accepts. Automaton has 5144 states and 12966 transitions. Word has length 32 [2021-03-10 22:45:08,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:08,236 INFO L480 AbstractCegarLoop]: Abstraction has 5144 states and 12966 transitions. [2021-03-10 22:45:08,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:08,236 INFO L276 IsEmpty]: Start isEmpty. Operand 5144 states and 12966 transitions. [2021-03-10 22:45:08,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-03-10 22:45:08,239 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:08,239 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:08,439 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable230 [2021-03-10 22:45:08,440 INFO L428 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:08,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:08,440 INFO L82 PathProgramCache]: Analyzing trace with hash 874026652, now seen corresponding path program 66 times [2021-03-10 22:45:08,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:08,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592598434] [2021-03-10 22:45:08,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:08,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:08,499 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 21 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:45:08,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592598434] [2021-03-10 22:45:08,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533372220] [2021-03-10 22:45:08,500 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:08,551 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-03-10 22:45:08,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:45:08,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-10 22:45:08,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:08,734 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:08,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:08,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13] total 20 [2021-03-10 22:45:08,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182073122] [2021-03-10 22:45:08,735 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-03-10 22:45:08,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:08,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-03-10 22:45:08,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2021-03-10 22:45:08,735 INFO L87 Difference]: Start difference. First operand 5144 states and 12966 transitions. Second operand has 21 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 20 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:09,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:09,640 INFO L93 Difference]: Finished difference Result 6009 states and 14677 transitions. [2021-03-10 22:45:09,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-03-10 22:45:09,641 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 20 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-03-10 22:45:09,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:09,647 INFO L225 Difference]: With dead ends: 6009 [2021-03-10 22:45:09,647 INFO L226 Difference]: Without dead ends: 6005 [2021-03-10 22:45:09,648 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1206 ImplicationChecksByTransitivity, 785.0ms TimeCoverageRelationStatistics Valid=1087, Invalid=2819, Unknown=0, NotChecked=0, Total=3906 [2021-03-10 22:45:09,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6005 states. [2021-03-10 22:45:09,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6005 to 5062. [2021-03-10 22:45:09,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5062 states, 5061 states have (on average 2.517091483896463) internal successors, (12739), 5061 states have internal predecessors, (12739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:09,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5062 states to 5062 states and 12739 transitions. [2021-03-10 22:45:09,742 INFO L78 Accepts]: Start accepts. Automaton has 5062 states and 12739 transitions. Word has length 32 [2021-03-10 22:45:09,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:09,742 INFO L480 AbstractCegarLoop]: Abstraction has 5062 states and 12739 transitions. [2021-03-10 22:45:09,742 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 20 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:09,742 INFO L276 IsEmpty]: Start isEmpty. Operand 5062 states and 12739 transitions. [2021-03-10 22:45:09,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-03-10 22:45:09,745 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:09,745 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:09,946 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231,67 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:09,946 INFO L428 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:09,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:09,946 INFO L82 PathProgramCache]: Analyzing trace with hash 367680386, now seen corresponding path program 67 times [2021-03-10 22:45:09,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:09,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317783518] [2021-03-10 22:45:09,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:10,009 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 17 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:45:10,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317783518] [2021-03-10 22:45:10,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186308468] [2021-03-10 22:45:10,010 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:10,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-10 22:45:10,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:10,223 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:10,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:10,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 21 [2021-03-10 22:45:10,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722717089] [2021-03-10 22:45:10,223 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-03-10 22:45:10,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:10,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-03-10 22:45:10,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2021-03-10 22:45:10,224 INFO L87 Difference]: Start difference. First operand 5062 states and 12739 transitions. Second operand has 22 states, 22 states have (on average 2.4545454545454546) internal successors, (54), 21 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:11,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:11,095 INFO L93 Difference]: Finished difference Result 6244 states and 15277 transitions. [2021-03-10 22:45:11,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-03-10 22:45:11,095 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.4545454545454546) internal successors, (54), 21 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-03-10 22:45:11,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:11,101 INFO L225 Difference]: With dead ends: 6244 [2021-03-10 22:45:11,101 INFO L226 Difference]: Without dead ends: 6232 [2021-03-10 22:45:11,102 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1197 ImplicationChecksByTransitivity, 779.4ms TimeCoverageRelationStatistics Valid=1011, Invalid=2895, Unknown=0, NotChecked=0, Total=3906 [2021-03-10 22:45:11,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6232 states. [2021-03-10 22:45:11,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6232 to 5108. [2021-03-10 22:45:11,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5108 states, 5107 states have (on average 2.522811826904249) internal successors, (12884), 5107 states have internal predecessors, (12884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:11,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5108 states to 5108 states and 12884 transitions. [2021-03-10 22:45:11,166 INFO L78 Accepts]: Start accepts. Automaton has 5108 states and 12884 transitions. Word has length 32 [2021-03-10 22:45:11,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:11,166 INFO L480 AbstractCegarLoop]: Abstraction has 5108 states and 12884 transitions. [2021-03-10 22:45:11,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.4545454545454546) internal successors, (54), 21 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:11,166 INFO L276 IsEmpty]: Start isEmpty. Operand 5108 states and 12884 transitions. [2021-03-10 22:45:11,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-03-10 22:45:11,169 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:11,169 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:11,371 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232,68 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:11,371 INFO L428 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:11,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:11,371 INFO L82 PathProgramCache]: Analyzing trace with hash 140459006, now seen corresponding path program 68 times [2021-03-10 22:45:11,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:11,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617546575] [2021-03-10 22:45:11,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:11,475 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 26 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:45:11,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617546575] [2021-03-10 22:45:11,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192678555] [2021-03-10 22:45:11,475 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:11,496 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 22:45:11,496 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:45:11,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-10 22:45:11,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:11,692 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 13 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:11,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:11,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 22 [2021-03-10 22:45:11,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760637179] [2021-03-10 22:45:11,692 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-10 22:45:11,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:11,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-10 22:45:11,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=413, Unknown=0, NotChecked=0, Total=506 [2021-03-10 22:45:11,693 INFO L87 Difference]: Start difference. First operand 5108 states and 12884 transitions. Second operand has 23 states, 23 states have (on average 2.347826086956522) internal successors, (54), 22 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:12,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:12,614 INFO L93 Difference]: Finished difference Result 6722 states and 16413 transitions. [2021-03-10 22:45:12,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-03-10 22:45:12,615 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.347826086956522) internal successors, (54), 22 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-03-10 22:45:12,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:12,621 INFO L225 Difference]: With dead ends: 6722 [2021-03-10 22:45:12,621 INFO L226 Difference]: Without dead ends: 6702 [2021-03-10 22:45:12,622 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1272 ImplicationChecksByTransitivity, 854.3ms TimeCoverageRelationStatistics Valid=1025, Invalid=3135, Unknown=0, NotChecked=0, Total=4160 [2021-03-10 22:45:12,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6702 states. [2021-03-10 22:45:12,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6702 to 5738. [2021-03-10 22:45:12,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5738 states, 5737 states have (on average 2.5281506013595956) internal successors, (14504), 5737 states have internal predecessors, (14504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:12,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5738 states to 5738 states and 14504 transitions. [2021-03-10 22:45:12,697 INFO L78 Accepts]: Start accepts. Automaton has 5738 states and 14504 transitions. Word has length 32 [2021-03-10 22:45:12,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:12,697 INFO L480 AbstractCegarLoop]: Abstraction has 5738 states and 14504 transitions. [2021-03-10 22:45:12,698 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.347826086956522) internal successors, (54), 22 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:12,698 INFO L276 IsEmpty]: Start isEmpty. Operand 5738 states and 14504 transitions. [2021-03-10 22:45:12,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-03-10 22:45:12,701 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:12,701 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:12,901 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable233 [2021-03-10 22:45:12,902 INFO L428 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:12,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:12,902 INFO L82 PathProgramCache]: Analyzing trace with hash 824044922, now seen corresponding path program 69 times [2021-03-10 22:45:12,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:12,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179154776] [2021-03-10 22:45:12,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:12,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:13,031 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:45:13,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179154776] [2021-03-10 22:45:13,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295948540] [2021-03-10 22:45:13,031 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:13,053 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-03-10 22:45:13,053 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:45:13,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-10 22:45:13,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:13,315 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:13,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:13,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 23 [2021-03-10 22:45:13,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520266197] [2021-03-10 22:45:13,315 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-10 22:45:13,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:13,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-10 22:45:13,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2021-03-10 22:45:13,316 INFO L87 Difference]: Start difference. First operand 5738 states and 14504 transitions. Second operand has 24 states, 24 states have (on average 2.25) internal successors, (54), 23 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:14,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:14,425 INFO L93 Difference]: Finished difference Result 7634 states and 18636 transitions. [2021-03-10 22:45:14,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-03-10 22:45:14,426 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.25) internal successors, (54), 23 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-03-10 22:45:14,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:14,434 INFO L225 Difference]: With dead ends: 7634 [2021-03-10 22:45:14,434 INFO L226 Difference]: Without dead ends: 7606 [2021-03-10 22:45:14,434 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1454 ImplicationChecksByTransitivity, 1087.0ms TimeCoverageRelationStatistics Valid=1128, Invalid=3564, Unknown=0, NotChecked=0, Total=4692 [2021-03-10 22:45:14,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7606 states. [2021-03-10 22:45:14,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7606 to 6549. [2021-03-10 22:45:14,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6549 states, 6548 states have (on average 2.5284056200366525) internal successors, (16556), 6548 states have internal predecessors, (16556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:14,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6549 states to 6549 states and 16556 transitions. [2021-03-10 22:45:14,526 INFO L78 Accepts]: Start accepts. Automaton has 6549 states and 16556 transitions. Word has length 32 [2021-03-10 22:45:14,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:14,526 INFO L480 AbstractCegarLoop]: Abstraction has 6549 states and 16556 transitions. [2021-03-10 22:45:14,526 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.25) internal successors, (54), 23 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:14,526 INFO L276 IsEmpty]: Start isEmpty. Operand 6549 states and 16556 transitions. [2021-03-10 22:45:14,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-03-10 22:45:14,530 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:14,530 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:14,730 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable234 [2021-03-10 22:45:14,730 INFO L428 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:14,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:14,731 INFO L82 PathProgramCache]: Analyzing trace with hash 620113910, now seen corresponding path program 70 times [2021-03-10 22:45:14,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:14,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144116562] [2021-03-10 22:45:14,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:14,826 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 21 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:14,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144116562] [2021-03-10 22:45:14,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330469813] [2021-03-10 22:45:14,826 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:14,845 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 22:45:14,845 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:45:14,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-10 22:45:14,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:15,082 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 21 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:15,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:15,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-03-10 22:45:15,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254603361] [2021-03-10 22:45:15,083 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 22:45:15,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:15,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 22:45:15,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2021-03-10 22:45:15,083 INFO L87 Difference]: Start difference. First operand 6549 states and 16556 transitions. Second operand has 25 states, 25 states have (on average 2.16) internal successors, (54), 24 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:16,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:16,174 INFO L93 Difference]: Finished difference Result 7611 states and 18726 transitions. [2021-03-10 22:45:16,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-03-10 22:45:16,175 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.16) internal successors, (54), 24 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-03-10 22:45:16,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:16,182 INFO L225 Difference]: With dead ends: 7611 [2021-03-10 22:45:16,182 INFO L226 Difference]: Without dead ends: 7575 [2021-03-10 22:45:16,183 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1782 ImplicationChecksByTransitivity, 1059.2ms TimeCoverageRelationStatistics Valid=1318, Invalid=4232, Unknown=0, NotChecked=0, Total=5550 [2021-03-10 22:45:16,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7575 states. [2021-03-10 22:45:16,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7575 to 6635. [2021-03-10 22:45:16,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6635 states, 6634 states have (on average 2.537232438950859) internal successors, (16832), 6634 states have internal predecessors, (16832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:16,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6635 states to 6635 states and 16832 transitions. [2021-03-10 22:45:16,277 INFO L78 Accepts]: Start accepts. Automaton has 6635 states and 16832 transitions. Word has length 32 [2021-03-10 22:45:16,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:16,277 INFO L480 AbstractCegarLoop]: Abstraction has 6635 states and 16832 transitions. [2021-03-10 22:45:16,277 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.16) internal successors, (54), 24 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:16,277 INFO L276 IsEmpty]: Start isEmpty. Operand 6635 states and 16832 transitions. [2021-03-10 22:45:16,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-10 22:45:16,282 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:16,282 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:16,482 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable235 [2021-03-10 22:45:16,483 INFO L428 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:16,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:16,483 INFO L82 PathProgramCache]: Analyzing trace with hash -617394444, now seen corresponding path program 71 times [2021-03-10 22:45:16,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:16,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132616893] [2021-03-10 22:45:16,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:16,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:16,519 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:16,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132616893] [2021-03-10 22:45:16,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134654063] [2021-03-10 22:45:16,520 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:16,541 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-03-10 22:45:16,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:45:16,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 39 conjunts are in the unsatisfiable core [2021-03-10 22:45:16,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:16,782 INFO L354 Elim1Store]: treesize reduction 72, result has 40.5 percent of original size [2021-03-10 22:45:16,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 130 treesize of output 111 [2021-03-10 22:45:17,008 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 22:45:17,034 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:45:17,172 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 22:45:17,173 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:130, output treesize:171 [2021-03-10 22:45:17,387 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-03-10 22:45:17,707 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-03-10 22:45:18,101 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 38 [2021-03-10 22:45:18,210 INFO L354 Elim1Store]: treesize reduction 78, result has 3.7 percent of original size [2021-03-10 22:45:18,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 103 treesize of output 40 [2021-03-10 22:45:18,211 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:45:18,289 INFO L628 ElimStorePlain]: treesize reduction 158, result has 59.5 percent of original size [2021-03-10 22:45:18,336 INFO L354 Elim1Store]: treesize reduction 40, result has 50.6 percent of original size [2021-03-10 22:45:18,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 63 treesize of output 75 [2021-03-10 22:45:18,339 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 22:45:18,348 INFO L628 ElimStorePlain]: treesize reduction 169, result has 1.7 percent of original size [2021-03-10 22:45:18,348 INFO L518 ElimStorePlain]: Eliminatee v_prenex_46 vanished before elimination [2021-03-10 22:45:18,348 INFO L518 ElimStorePlain]: Eliminatee v_prenex_44 vanished before elimination [2021-03-10 22:45:18,348 INFO L518 ElimStorePlain]: Eliminatee v_prenex_48 vanished before elimination [2021-03-10 22:45:18,349 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:45:18,349 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 10 variables, input treesize:486, output treesize:3 [2021-03-10 22:45:18,354 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:18,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:18,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 17 [2021-03-10 22:45:18,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819669551] [2021-03-10 22:45:18,355 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-10 22:45:18,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:18,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-10 22:45:18,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-03-10 22:45:18,355 INFO L87 Difference]: Start difference. First operand 6635 states and 16832 transitions. Second operand has 17 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 17 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:18,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:18,670 INFO L93 Difference]: Finished difference Result 7845 states and 19757 transitions. [2021-03-10 22:45:18,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-10 22:45:18,670 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 17 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-10 22:45:18,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:18,680 INFO L225 Difference]: With dead ends: 7845 [2021-03-10 22:45:18,680 INFO L226 Difference]: Without dead ends: 7838 [2021-03-10 22:45:18,680 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 719.2ms TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-03-10 22:45:18,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7838 states. [2021-03-10 22:45:18,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7838 to 7360. [2021-03-10 22:45:18,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7360 states, 7359 states have (on average 2.545726321511075) internal successors, (18734), 7359 states have internal predecessors, (18734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:18,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7360 states to 7360 states and 18734 transitions. [2021-03-10 22:45:18,794 INFO L78 Accepts]: Start accepts. Automaton has 7360 states and 18734 transitions. Word has length 34 [2021-03-10 22:45:18,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:18,795 INFO L480 AbstractCegarLoop]: Abstraction has 7360 states and 18734 transitions. [2021-03-10 22:45:18,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 17 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:18,795 INFO L276 IsEmpty]: Start isEmpty. Operand 7360 states and 18734 transitions. [2021-03-10 22:45:18,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-10 22:45:18,802 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:18,802 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:19,012 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable236 [2021-03-10 22:45:19,013 INFO L428 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:19,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:19,013 INFO L82 PathProgramCache]: Analyzing trace with hash -100122124, now seen corresponding path program 72 times [2021-03-10 22:45:19,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:19,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469480841] [2021-03-10 22:45:19,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:19,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:19,072 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:45:19,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469480841] [2021-03-10 22:45:19,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423199684] [2021-03-10 22:45:19,073 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-10 22:45:19,101 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-03-10 22:45:19,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:19,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 41 conjunts are in the unsatisfiable core [2021-03-10 22:45:19,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:19,361 INFO L446 ElimStorePlain]: Different costs {10=[f], 36=[f_inv]} [2021-03-10 22:45:19,412 INFO L354 Elim1Store]: treesize reduction 32, result has 60.5 percent of original size [2021-03-10 22:45:19,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 158 treesize of output 120 [2021-03-10 22:45:19,850 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 22:45:19,874 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:45:19,908 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:45:19,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 187 treesize of output 147 [2021-03-10 22:45:19,971 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 22:45:19,973 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:45:19,974 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:45:19,974 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:158, output treesize:3 [2021-03-10 22:45:19,987 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:45:19,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:19,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 17 [2021-03-10 22:45:19,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846426495] [2021-03-10 22:45:19,987 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-10 22:45:19,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:19,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-10 22:45:19,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-03-10 22:45:19,988 INFO L87 Difference]: Start difference. First operand 7360 states and 18734 transitions. Second operand has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:20,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:20,111 INFO L93 Difference]: Finished difference Result 8008 states and 20271 transitions. [2021-03-10 22:45:20,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-10 22:45:20,112 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-10 22:45:20,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:20,120 INFO L225 Difference]: With dead ends: 8008 [2021-03-10 22:45:20,120 INFO L226 Difference]: Without dead ends: 7999 [2021-03-10 22:45:20,121 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 245.1ms TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-03-10 22:45:20,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7999 states. [2021-03-10 22:45:20,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7999 to 7776. [2021-03-10 22:45:20,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7776 states, 7775 states have (on average 2.5569131832797427) internal successors, (19880), 7775 states have internal predecessors, (19880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:20,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7776 states to 7776 states and 19880 transitions. [2021-03-10 22:45:20,208 INFO L78 Accepts]: Start accepts. Automaton has 7776 states and 19880 transitions. Word has length 34 [2021-03-10 22:45:20,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:20,208 INFO L480 AbstractCegarLoop]: Abstraction has 7776 states and 19880 transitions. [2021-03-10 22:45:20,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:20,209 INFO L276 IsEmpty]: Start isEmpty. Operand 7776 states and 19880 transitions. [2021-03-10 22:45:20,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-10 22:45:20,221 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:20,221 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:20,443 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable448 [2021-03-10 22:45:20,443 INFO L428 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:20,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:20,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1652349196, now seen corresponding path program 73 times [2021-03-10 22:45:20,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:20,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029757502] [2021-03-10 22:45:20,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:20,480 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:45:20,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029757502] [2021-03-10 22:45:20,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750760542] [2021-03-10 22:45:20,480 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:20,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:20,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 33 conjunts are in the unsatisfiable core [2021-03-10 22:45:20,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:20,699 INFO L354 Elim1Store]: treesize reduction 154, result has 36.1 percent of original size [2021-03-10 22:45:20,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 21 case distinctions, treesize of input 119 treesize of output 127 [2021-03-10 22:45:20,716 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:45:20,746 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:45:20,747 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:45:20,747 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:119, output treesize:124 [2021-03-10 22:45:20,805 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-03-10 22:45:20,968 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 31 [2021-03-10 22:45:20,988 INFO L446 ElimStorePlain]: Different costs {3=[f], 6=[v_prenex_50], 10=[v_prenex_51]} [2021-03-10 22:45:21,001 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:45:21,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 19 treesize of output 37 [2021-03-10 22:45:21,003 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:45:21,021 INFO L628 ElimStorePlain]: treesize reduction 97, result has 3.0 percent of original size [2021-03-10 22:45:21,021 INFO L518 ElimStorePlain]: Eliminatee v_prenex_50 vanished before elimination [2021-03-10 22:45:21,021 INFO L518 ElimStorePlain]: Eliminatee v_prenex_51 vanished before elimination [2021-03-10 22:45:21,022 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:45:21,022 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:116, output treesize:3 [2021-03-10 22:45:21,033 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:45:21,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:21,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 17 [2021-03-10 22:45:21,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434301046] [2021-03-10 22:45:21,034 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-10 22:45:21,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:21,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-10 22:45:21,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-03-10 22:45:21,035 INFO L87 Difference]: Start difference. First operand 7776 states and 19880 transitions. Second operand has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:21,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:21,237 INFO L93 Difference]: Finished difference Result 8649 states and 21915 transitions. [2021-03-10 22:45:21,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-10 22:45:21,237 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-10 22:45:21,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:21,246 INFO L225 Difference]: With dead ends: 8649 [2021-03-10 22:45:21,246 INFO L226 Difference]: Without dead ends: 8624 [2021-03-10 22:45:21,246 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 310.6ms TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-03-10 22:45:21,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8624 states. [2021-03-10 22:45:21,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8624 to 8091. [2021-03-10 22:45:21,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8091 states, 8090 states have (on average 2.5673671199011125) internal successors, (20770), 8090 states have internal predecessors, (20770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:21,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8091 states to 8091 states and 20770 transitions. [2021-03-10 22:45:21,358 INFO L78 Accepts]: Start accepts. Automaton has 8091 states and 20770 transitions. Word has length 34 [2021-03-10 22:45:21,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:21,358 INFO L480 AbstractCegarLoop]: Abstraction has 8091 states and 20770 transitions. [2021-03-10 22:45:21,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:21,358 INFO L276 IsEmpty]: Start isEmpty. Operand 8091 states and 20770 transitions. [2021-03-10 22:45:21,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-10 22:45:21,364 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:21,364 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:21,564 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable607,74 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:21,565 INFO L428 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:21,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:21,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1306053620, now seen corresponding path program 74 times [2021-03-10 22:45:21,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:21,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956853984] [2021-03-10 22:45:21,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:21,608 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:45:21,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956853984] [2021-03-10 22:45:21,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877817171] [2021-03-10 22:45:21,608 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:21,654 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 22:45:21,654 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:45:21,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 33 conjunts are in the unsatisfiable core [2021-03-10 22:45:21,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:21,834 INFO L354 Elim1Store]: treesize reduction 79, result has 47.7 percent of original size [2021-03-10 22:45:21,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 117 treesize of output 110 [2021-03-10 22:45:21,836 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:45:21,860 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:45:21,861 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:45:21,861 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:117, output treesize:132 [2021-03-10 22:45:21,965 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-03-10 22:45:22,180 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 35 [2021-03-10 22:45:22,287 INFO L446 ElimStorePlain]: Different costs {6=[f], 10=[v_prenex_54, v_prenex_55]} [2021-03-10 22:45:22,312 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:45:22,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 23 treesize of output 64 [2021-03-10 22:45:22,314 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:45:22,320 INFO L628 ElimStorePlain]: treesize reduction 153, result has 1.9 percent of original size [2021-03-10 22:45:22,320 INFO L518 ElimStorePlain]: Eliminatee v_prenex_54 vanished before elimination [2021-03-10 22:45:22,320 INFO L518 ElimStorePlain]: Eliminatee v_prenex_55 vanished before elimination [2021-03-10 22:45:22,321 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:45:22,321 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:176, output treesize:3 [2021-03-10 22:45:22,330 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:45:22,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:22,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 17 [2021-03-10 22:45:22,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49954625] [2021-03-10 22:45:22,331 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-10 22:45:22,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:22,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-10 22:45:22,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-03-10 22:45:22,331 INFO L87 Difference]: Start difference. First operand 8091 states and 20770 transitions. Second operand has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:22,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:22,605 INFO L93 Difference]: Finished difference Result 9127 states and 23212 transitions. [2021-03-10 22:45:22,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-10 22:45:22,605 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-10 22:45:22,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:22,615 INFO L225 Difference]: With dead ends: 9127 [2021-03-10 22:45:22,615 INFO L226 Difference]: Without dead ends: 9098 [2021-03-10 22:45:22,615 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 370.7ms TimeCoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-03-10 22:45:22,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9098 states. [2021-03-10 22:45:22,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9098 to 8475. [2021-03-10 22:45:22,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8475 states, 8474 states have (on average 2.577059240028322) internal successors, (21838), 8474 states have internal predecessors, (21838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:22,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8475 states to 8475 states and 21838 transitions. [2021-03-10 22:45:22,726 INFO L78 Accepts]: Start accepts. Automaton has 8475 states and 21838 transitions. Word has length 34 [2021-03-10 22:45:22,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:22,726 INFO L480 AbstractCegarLoop]: Abstraction has 8475 states and 21838 transitions. [2021-03-10 22:45:22,726 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:22,726 INFO L276 IsEmpty]: Start isEmpty. Operand 8475 states and 21838 transitions. [2021-03-10 22:45:22,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-10 22:45:22,731 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:22,731 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:22,932 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable612 [2021-03-10 22:45:22,932 INFO L428 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:22,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:22,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1062809844, now seen corresponding path program 75 times [2021-03-10 22:45:22,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:22,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684741524] [2021-03-10 22:45:22,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:22,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:22,977 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:45:22,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684741524] [2021-03-10 22:45:22,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778832573] [2021-03-10 22:45:22,978 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:23,006 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-03-10 22:45:23,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:45:23,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 37 conjunts are in the unsatisfiable core [2021-03-10 22:45:23,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:23,244 INFO L446 ElimStorePlain]: Different costs {15=[f_inv], 28=[f]} [2021-03-10 22:45:23,295 INFO L354 Elim1Store]: treesize reduction 74, result has 43.5 percent of original size [2021-03-10 22:45:23,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 158 treesize of output 123 [2021-03-10 22:45:23,423 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 22:45:23,447 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:45:23,482 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:45:23,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 139 treesize of output 144 [2021-03-10 22:45:23,500 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 22:45:23,502 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:45:23,502 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:45:23,502 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:158, output treesize:3 [2021-03-10 22:45:23,512 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:45:23,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:23,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 17 [2021-03-10 22:45:23,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504442426] [2021-03-10 22:45:23,512 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-10 22:45:23,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:23,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-10 22:45:23,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-03-10 22:45:23,513 INFO L87 Difference]: Start difference. First operand 8475 states and 21838 transitions. Second operand has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:23,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:23,691 INFO L93 Difference]: Finished difference Result 9518 states and 24331 transitions. [2021-03-10 22:45:23,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-10 22:45:23,691 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-10 22:45:23,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:23,700 INFO L225 Difference]: With dead ends: 9518 [2021-03-10 22:45:23,701 INFO L226 Difference]: Without dead ends: 9492 [2021-03-10 22:45:23,701 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 218.3ms TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-03-10 22:45:23,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9492 states. [2021-03-10 22:45:23,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9492 to 8919. [2021-03-10 22:45:23,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8919 states, 8918 states have (on average 2.588024220677282) internal successors, (23080), 8918 states have internal predecessors, (23080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:23,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8919 states to 8919 states and 23080 transitions. [2021-03-10 22:45:23,828 INFO L78 Accepts]: Start accepts. Automaton has 8919 states and 23080 transitions. Word has length 34 [2021-03-10 22:45:23,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:23,828 INFO L480 AbstractCegarLoop]: Abstraction has 8919 states and 23080 transitions. [2021-03-10 22:45:23,828 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:23,828 INFO L276 IsEmpty]: Start isEmpty. Operand 8919 states and 23080 transitions. [2021-03-10 22:45:23,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-10 22:45:23,833 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:23,833 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:24,034 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable635,76 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:24,034 INFO L428 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:24,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:24,034 INFO L82 PathProgramCache]: Analyzing trace with hash -766224908, now seen corresponding path program 76 times [2021-03-10 22:45:24,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:24,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066972477] [2021-03-10 22:45:24,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:24,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:24,073 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:45:24,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066972477] [2021-03-10 22:45:24,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410463553] [2021-03-10 22:45:24,073 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:24,103 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 22:45:24,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:45:24,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 33 conjunts are in the unsatisfiable core [2021-03-10 22:45:24,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:24,245 INFO L354 Elim1Store]: treesize reduction 32, result has 60.5 percent of original size [2021-03-10 22:45:24,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 89 treesize of output 89 [2021-03-10 22:45:24,248 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:45:24,281 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:45:24,282 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:45:24,282 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:89, output treesize:162 [2021-03-10 22:45:24,405 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-03-10 22:45:24,846 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 38 [2021-03-10 22:45:25,245 INFO L354 Elim1Store]: treesize reduction 78, result has 3.7 percent of original size [2021-03-10 22:45:25,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 98 treesize of output 43 [2021-03-10 22:45:25,247 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:45:25,324 INFO L628 ElimStorePlain]: treesize reduction 171, result has 56.8 percent of original size [2021-03-10 22:45:25,351 INFO L354 Elim1Store]: treesize reduction 66, result has 18.5 percent of original size [2021-03-10 22:45:25,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 48 treesize of output 40 [2021-03-10 22:45:25,353 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 22:45:25,382 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:45:25,404 INFO L354 Elim1Store]: treesize reduction 71, result has 12.3 percent of original size [2021-03-10 22:45:25,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 51 treesize of output 34 [2021-03-10 22:45:25,405 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 22:45:25,431 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:45:25,478 INFO L354 Elim1Store]: treesize reduction 40, result has 50.6 percent of original size [2021-03-10 22:45:25,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 63 treesize of output 75 [2021-03-10 22:45:25,481 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 22:45:25,489 INFO L628 ElimStorePlain]: treesize reduction 78, result has 3.7 percent of original size [2021-03-10 22:45:25,489 INFO L518 ElimStorePlain]: Eliminatee v_prenex_66 vanished before elimination [2021-03-10 22:45:25,490 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:45:25,490 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 10 variables, input treesize:486, output treesize:3 [2021-03-10 22:45:25,500 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:45:25,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:25,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 17 [2021-03-10 22:45:25,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66387551] [2021-03-10 22:45:25,500 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-10 22:45:25,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:25,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-10 22:45:25,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-03-10 22:45:25,501 INFO L87 Difference]: Start difference. First operand 8919 states and 23080 transitions. Second operand has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:25,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:25,812 INFO L93 Difference]: Finished difference Result 9867 states and 25209 transitions. [2021-03-10 22:45:25,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 22:45:25,812 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-10 22:45:25,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:25,824 INFO L225 Difference]: With dead ends: 9867 [2021-03-10 22:45:25,824 INFO L226 Difference]: Without dead ends: 9860 [2021-03-10 22:45:25,824 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 652.3ms TimeCoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-03-10 22:45:25,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9860 states. [2021-03-10 22:45:25,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9860 to 9257. [2021-03-10 22:45:25,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9257 states, 9256 states have (on average 2.5956136560069143) internal successors, (24025), 9256 states have internal predecessors, (24025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:25,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9257 states to 9257 states and 24025 transitions. [2021-03-10 22:45:25,976 INFO L78 Accepts]: Start accepts. Automaton has 9257 states and 24025 transitions. Word has length 34 [2021-03-10 22:45:25,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:25,976 INFO L480 AbstractCegarLoop]: Abstraction has 9257 states and 24025 transitions. [2021-03-10 22:45:25,977 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:25,977 INFO L276 IsEmpty]: Start isEmpty. Operand 9257 states and 24025 transitions. [2021-03-10 22:45:25,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 22:45:25,983 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:25,983 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:26,184 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable696 [2021-03-10 22:45:26,184 INFO L428 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:26,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:26,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1975981686, now seen corresponding path program 77 times [2021-03-10 22:45:26,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:26,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765581310] [2021-03-10 22:45:26,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:26,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:26,315 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 25 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:26,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765581310] [2021-03-10 22:45:26,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123674788] [2021-03-10 22:45:26,315 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:26,338 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-03-10 22:45:26,338 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:45:26,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-10 22:45:26,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:26,642 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 25 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:26,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:26,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 29 [2021-03-10 22:45:26,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267555607] [2021-03-10 22:45:26,642 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-03-10 22:45:26,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:26,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-03-10 22:45:26,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=700, Unknown=0, NotChecked=0, Total=870 [2021-03-10 22:45:26,643 INFO L87 Difference]: Start difference. First operand 9257 states and 24025 transitions. Second operand has 30 states, 30 states have (on average 2.2) internal successors, (66), 29 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:28,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:28,267 INFO L93 Difference]: Finished difference Result 10763 states and 27124 transitions. [2021-03-10 22:45:28,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-03-10 22:45:28,268 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.2) internal successors, (66), 29 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 22:45:28,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:28,280 INFO L225 Difference]: With dead ends: 10763 [2021-03-10 22:45:28,280 INFO L226 Difference]: Without dead ends: 10763 [2021-03-10 22:45:28,281 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2236 ImplicationChecksByTransitivity, 1420.5ms TimeCoverageRelationStatistics Valid=2085, Invalid=5925, Unknown=0, NotChecked=0, Total=8010 [2021-03-10 22:45:28,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10763 states. [2021-03-10 22:45:28,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 8556. [2021-03-10 22:45:28,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8556 states, 8555 states have (on average 2.586791350087668) internal successors, (22130), 8555 states have internal predecessors, (22130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:28,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8556 states to 8556 states and 22130 transitions. [2021-03-10 22:45:28,393 INFO L78 Accepts]: Start accepts. Automaton has 8556 states and 22130 transitions. Word has length 36 [2021-03-10 22:45:28,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:28,393 INFO L480 AbstractCegarLoop]: Abstraction has 8556 states and 22130 transitions. [2021-03-10 22:45:28,393 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.2) internal successors, (66), 29 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:28,393 INFO L276 IsEmpty]: Start isEmpty. Operand 8556 states and 22130 transitions. [2021-03-10 22:45:28,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 22:45:28,399 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:28,399 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:28,600 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable736 [2021-03-10 22:45:28,601 INFO L428 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:28,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:28,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1533628238, now seen corresponding path program 78 times [2021-03-10 22:45:28,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:28,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8839839] [2021-03-10 22:45:28,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:28,742 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:28,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8839839] [2021-03-10 22:45:28,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873870777] [2021-03-10 22:45:28,742 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:28,767 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-03-10 22:45:28,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:45:28,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-10 22:45:28,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:29,080 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:29,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:29,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2021-03-10 22:45:29,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462944718] [2021-03-10 22:45:29,081 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-03-10 22:45:29,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:29,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-03-10 22:45:29,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=670, Unknown=0, NotChecked=0, Total=812 [2021-03-10 22:45:29,082 INFO L87 Difference]: Start difference. First operand 8556 states and 22130 transitions. Second operand has 29 states, 29 states have (on average 2.206896551724138) internal successors, (64), 28 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:31,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:31,551 INFO L93 Difference]: Finished difference Result 12764 states and 31601 transitions. [2021-03-10 22:45:31,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2021-03-10 22:45:31,552 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.206896551724138) internal successors, (64), 28 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 22:45:31,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:31,567 INFO L225 Difference]: With dead ends: 12764 [2021-03-10 22:45:31,568 INFO L226 Difference]: Without dead ends: 12621 [2021-03-10 22:45:31,569 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4553 ImplicationChecksByTransitivity, 2385.4ms TimeCoverageRelationStatistics Valid=2979, Invalid=10827, Unknown=0, NotChecked=0, Total=13806 [2021-03-10 22:45:31,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12621 states. [2021-03-10 22:45:31,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12621 to 8919. [2021-03-10 22:45:31,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8919 states, 8918 states have (on average 2.585557299843014) internal successors, (23058), 8918 states have internal predecessors, (23058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:31,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8919 states to 8919 states and 23058 transitions. [2021-03-10 22:45:31,723 INFO L78 Accepts]: Start accepts. Automaton has 8919 states and 23058 transitions. Word has length 36 [2021-03-10 22:45:31,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:31,723 INFO L480 AbstractCegarLoop]: Abstraction has 8919 states and 23058 transitions. [2021-03-10 22:45:31,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.206896551724138) internal successors, (64), 28 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:31,723 INFO L276 IsEmpty]: Start isEmpty. Operand 8919 states and 23058 transitions. [2021-03-10 22:45:31,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 22:45:31,730 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:31,730 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:31,930 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable737,79 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:31,931 INFO L428 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:31,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:31,931 INFO L82 PathProgramCache]: Analyzing trace with hash 800183698, now seen corresponding path program 79 times [2021-03-10 22:45:31,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:31,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295289738] [2021-03-10 22:45:31,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:32,006 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:32,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295289738] [2021-03-10 22:45:32,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206307145] [2021-03-10 22:45:32,006 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:32,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:32,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-10 22:45:32,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:32,316 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:32,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:32,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 15] total 23 [2021-03-10 22:45:32,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065737780] [2021-03-10 22:45:32,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-10 22:45:32,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:32,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-10 22:45:32,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=455, Unknown=0, NotChecked=0, Total=552 [2021-03-10 22:45:32,317 INFO L87 Difference]: Start difference. First operand 8919 states and 23058 transitions. Second operand has 24 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 23 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:34,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:34,261 INFO L93 Difference]: Finished difference Result 16283 states and 41247 transitions. [2021-03-10 22:45:34,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-03-10 22:45:34,262 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 23 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 22:45:34,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:34,280 INFO L225 Difference]: With dead ends: 16283 [2021-03-10 22:45:34,280 INFO L226 Difference]: Without dead ends: 16267 [2021-03-10 22:45:34,281 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3729 ImplicationChecksByTransitivity, 1712.4ms TimeCoverageRelationStatistics Valid=2811, Invalid=7695, Unknown=0, NotChecked=0, Total=10506 [2021-03-10 22:45:34,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16267 states. [2021-03-10 22:45:34,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16267 to 11626. [2021-03-10 22:45:34,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11626 states, 11625 states have (on average 2.584602150537634) internal successors, (30046), 11625 states have internal predecessors, (30046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:34,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11626 states to 11626 states and 30046 transitions. [2021-03-10 22:45:34,469 INFO L78 Accepts]: Start accepts. Automaton has 11626 states and 30046 transitions. Word has length 36 [2021-03-10 22:45:34,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:34,469 INFO L480 AbstractCegarLoop]: Abstraction has 11626 states and 30046 transitions. [2021-03-10 22:45:34,469 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 23 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:34,469 INFO L276 IsEmpty]: Start isEmpty. Operand 11626 states and 30046 transitions. [2021-03-10 22:45:34,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 22:45:34,477 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:34,477 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:34,677 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable738,80 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:34,677 INFO L428 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:34,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:34,678 INFO L82 PathProgramCache]: Analyzing trace with hash -583714384, now seen corresponding path program 80 times [2021-03-10 22:45:34,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:34,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624239539] [2021-03-10 22:45:34,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:34,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:34,790 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 31 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:34,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624239539] [2021-03-10 22:45:34,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886658483] [2021-03-10 22:45:34,790 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:34,814 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 22:45:34,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:45:34,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-10 22:45:34,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:35,066 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 31 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:35,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:35,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 15] total 23 [2021-03-10 22:45:35,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224397486] [2021-03-10 22:45:35,067 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-10 22:45:35,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:35,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-10 22:45:35,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2021-03-10 22:45:35,067 INFO L87 Difference]: Start difference. First operand 11626 states and 30046 transitions. Second operand has 24 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 23 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:36,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:36,506 INFO L93 Difference]: Finished difference Result 12191 states and 31159 transitions. [2021-03-10 22:45:36,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-03-10 22:45:36,506 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 23 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 22:45:36,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:36,520 INFO L225 Difference]: With dead ends: 12191 [2021-03-10 22:45:36,521 INFO L226 Difference]: Without dead ends: 12187 [2021-03-10 22:45:36,521 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2261 ImplicationChecksByTransitivity, 1394.4ms TimeCoverageRelationStatistics Valid=1724, Invalid=5416, Unknown=0, NotChecked=0, Total=7140 [2021-03-10 22:45:36,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12187 states. [2021-03-10 22:45:36,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12187 to 11626. [2021-03-10 22:45:36,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11626 states, 11625 states have (on average 2.5839139784946235) internal successors, (30038), 11625 states have internal predecessors, (30038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:36,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11626 states to 11626 states and 30038 transitions. [2021-03-10 22:45:36,670 INFO L78 Accepts]: Start accepts. Automaton has 11626 states and 30038 transitions. Word has length 36 [2021-03-10 22:45:36,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:36,670 INFO L480 AbstractCegarLoop]: Abstraction has 11626 states and 30038 transitions. [2021-03-10 22:45:36,670 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 23 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:36,670 INFO L276 IsEmpty]: Start isEmpty. Operand 11626 states and 30038 transitions. [2021-03-10 22:45:36,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 22:45:36,678 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:36,678 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:36,878 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable739,81 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:36,878 INFO L428 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:36,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:36,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1643832242, now seen corresponding path program 81 times [2021-03-10 22:45:36,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:36,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413595007] [2021-03-10 22:45:36,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:36,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:36,960 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 39 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:45:36,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413595007] [2021-03-10 22:45:36,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946704078] [2021-03-10 22:45:36,960 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:36,983 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-03-10 22:45:36,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:45:36,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-10 22:45:36,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:37,226 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 31 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:37,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:37,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 15] total 23 [2021-03-10 22:45:37,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607901133] [2021-03-10 22:45:37,227 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-10 22:45:37,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:37,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-10 22:45:37,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=455, Unknown=0, NotChecked=0, Total=552 [2021-03-10 22:45:37,227 INFO L87 Difference]: Start difference. First operand 11626 states and 30038 transitions. Second operand has 24 states, 24 states have (on average 2.6666666666666665) internal successors, (64), 23 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:38,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:38,454 INFO L93 Difference]: Finished difference Result 15216 states and 38818 transitions. [2021-03-10 22:45:38,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-03-10 22:45:38,455 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.6666666666666665) internal successors, (64), 23 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 22:45:38,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:38,472 INFO L225 Difference]: With dead ends: 15216 [2021-03-10 22:45:38,472 INFO L226 Difference]: Without dead ends: 15195 [2021-03-10 22:45:38,473 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1417 ImplicationChecksByTransitivity, 1052.8ms TimeCoverageRelationStatistics Valid=1176, Invalid=3654, Unknown=0, NotChecked=0, Total=4830 [2021-03-10 22:45:38,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15195 states. [2021-03-10 22:45:38,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15195 to 11850. [2021-03-10 22:45:38,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11850 states, 11849 states have (on average 2.593467803190143) internal successors, (30730), 11849 states have internal predecessors, (30730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:38,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11850 states to 11850 states and 30730 transitions. [2021-03-10 22:45:38,663 INFO L78 Accepts]: Start accepts. Automaton has 11850 states and 30730 transitions. Word has length 36 [2021-03-10 22:45:38,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:38,663 INFO L480 AbstractCegarLoop]: Abstraction has 11850 states and 30730 transitions. [2021-03-10 22:45:38,663 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.6666666666666665) internal successors, (64), 23 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:38,663 INFO L276 IsEmpty]: Start isEmpty. Operand 11850 states and 30730 transitions. [2021-03-10 22:45:38,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 22:45:38,671 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:38,671 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:38,880 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable740 [2021-03-10 22:45:38,880 INFO L428 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:38,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:38,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1511339966, now seen corresponding path program 82 times [2021-03-10 22:45:38,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:38,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698616670] [2021-03-10 22:45:38,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:38,957 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 27 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:38,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698616670] [2021-03-10 22:45:38,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254163040] [2021-03-10 22:45:38,958 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 83 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 83 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:38,979 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 22:45:38,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:45:38,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-10 22:45:38,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:39,229 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 27 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:39,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:39,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15] total 24 [2021-03-10 22:45:39,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182812565] [2021-03-10 22:45:39,230 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 22:45:39,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:39,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 22:45:39,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=475, Unknown=0, NotChecked=0, Total=600 [2021-03-10 22:45:39,231 INFO L87 Difference]: Start difference. First operand 11850 states and 30730 transitions. Second operand has 25 states, 25 states have (on average 2.48) internal successors, (62), 24 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:40,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:40,849 INFO L93 Difference]: Finished difference Result 13259 states and 33760 transitions. [2021-03-10 22:45:40,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-03-10 22:45:40,850 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.48) internal successors, (62), 24 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 22:45:40,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:40,865 INFO L225 Difference]: With dead ends: 13259 [2021-03-10 22:45:40,865 INFO L226 Difference]: Without dead ends: 13241 [2021-03-10 22:45:40,865 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2419 ImplicationChecksByTransitivity, 1379.9ms TimeCoverageRelationStatistics Valid=1777, Invalid=5705, Unknown=0, NotChecked=0, Total=7482 [2021-03-10 22:45:40,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13241 states. [2021-03-10 22:45:40,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13241 to 12104. [2021-03-10 22:45:41,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12104 states, 12103 states have (on average 2.5956374452615054) internal successors, (31415), 12103 states have internal predecessors, (31415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:41,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12104 states to 12104 states and 31415 transitions. [2021-03-10 22:45:41,020 INFO L78 Accepts]: Start accepts. Automaton has 12104 states and 31415 transitions. Word has length 36 [2021-03-10 22:45:41,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:41,020 INFO L480 AbstractCegarLoop]: Abstraction has 12104 states and 31415 transitions. [2021-03-10 22:45:41,020 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.48) internal successors, (62), 24 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:41,020 INFO L276 IsEmpty]: Start isEmpty. Operand 12104 states and 31415 transitions. [2021-03-10 22:45:41,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 22:45:41,028 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:41,028 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:41,228 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable741 [2021-03-10 22:45:41,228 INFO L428 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:41,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:41,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1219841470, now seen corresponding path program 83 times [2021-03-10 22:45:41,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:41,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905082119] [2021-03-10 22:45:41,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:41,317 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 22 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:41,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905082119] [2021-03-10 22:45:41,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682856966] [2021-03-10 22:45:41,317 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:41,341 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-03-10 22:45:41,341 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:45:41,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-10 22:45:41,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:41,593 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 22 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:41,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:41,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 25 [2021-03-10 22:45:41,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555644881] [2021-03-10 22:45:41,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 22:45:41,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:41,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 22:45:41,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=524, Unknown=0, NotChecked=0, Total=650 [2021-03-10 22:45:41,594 INFO L87 Difference]: Start difference. First operand 12104 states and 31415 transitions. Second operand has 26 states, 26 states have (on average 2.3846153846153846) internal successors, (62), 25 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:43,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:43,170 INFO L93 Difference]: Finished difference Result 13923 states and 35275 transitions. [2021-03-10 22:45:43,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-03-10 22:45:43,171 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.3846153846153846) internal successors, (62), 25 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 22:45:43,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:43,188 INFO L225 Difference]: With dead ends: 13923 [2021-03-10 22:45:43,188 INFO L226 Difference]: Without dead ends: 13889 [2021-03-10 22:45:43,189 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2629 ImplicationChecksByTransitivity, 1363.0ms TimeCoverageRelationStatistics Valid=1841, Invalid=5991, Unknown=0, NotChecked=0, Total=7832 [2021-03-10 22:45:43,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13889 states. [2021-03-10 22:45:43,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13889 to 11939. [2021-03-10 22:45:43,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11939 states, 11938 states have (on average 2.5983414307254145) internal successors, (31019), 11938 states have internal predecessors, (31019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:43,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11939 states to 11939 states and 31019 transitions. [2021-03-10 22:45:43,345 INFO L78 Accepts]: Start accepts. Automaton has 11939 states and 31019 transitions. Word has length 36 [2021-03-10 22:45:43,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:43,346 INFO L480 AbstractCegarLoop]: Abstraction has 11939 states and 31019 transitions. [2021-03-10 22:45:43,346 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.3846153846153846) internal successors, (62), 25 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:43,346 INFO L276 IsEmpty]: Start isEmpty. Operand 11939 states and 31019 transitions. [2021-03-10 22:45:43,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 22:45:43,353 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:43,353 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:43,553 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable742,84 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:43,554 INFO L428 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:43,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:43,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1660183610, now seen corresponding path program 84 times [2021-03-10 22:45:43,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:43,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130014874] [2021-03-10 22:45:43,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:43,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:43,644 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 21 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:43,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130014874] [2021-03-10 22:45:43,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222399876] [2021-03-10 22:45:43,644 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 85 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 85 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:43,668 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2021-03-10 22:45:43,669 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:45:43,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-10 22:45:43,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:44,019 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 21 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:44,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:44,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 26 [2021-03-10 22:45:44,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474047320] [2021-03-10 22:45:44,020 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-03-10 22:45:44,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:44,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-03-10 22:45:44,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=571, Unknown=0, NotChecked=0, Total=702 [2021-03-10 22:45:44,020 INFO L87 Difference]: Start difference. First operand 11939 states and 31019 transitions. Second operand has 27 states, 27 states have (on average 2.2962962962962963) internal successors, (62), 26 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:45,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:45,597 INFO L93 Difference]: Finished difference Result 14229 states and 35822 transitions. [2021-03-10 22:45:45,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-03-10 22:45:45,598 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.2962962962962963) internal successors, (62), 26 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 22:45:45,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:45,617 INFO L225 Difference]: With dead ends: 14229 [2021-03-10 22:45:45,617 INFO L226 Difference]: Without dead ends: 14185 [2021-03-10 22:45:45,618 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2812 ImplicationChecksByTransitivity, 1452.9ms TimeCoverageRelationStatistics Valid=1915, Invalid=6275, Unknown=0, NotChecked=0, Total=8190 [2021-03-10 22:45:45,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14185 states. [2021-03-10 22:45:45,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14185 to 11149. [2021-03-10 22:45:45,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11149 states, 11148 states have (on average 2.601184068891281) internal successors, (28998), 11148 states have internal predecessors, (28998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:45,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11149 states to 11149 states and 28998 transitions. [2021-03-10 22:45:45,810 INFO L78 Accepts]: Start accepts. Automaton has 11149 states and 28998 transitions. Word has length 36 [2021-03-10 22:45:45,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:45,810 INFO L480 AbstractCegarLoop]: Abstraction has 11149 states and 28998 transitions. [2021-03-10 22:45:45,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.2962962962962963) internal successors, (62), 26 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:45,810 INFO L276 IsEmpty]: Start isEmpty. Operand 11149 states and 28998 transitions. [2021-03-10 22:45:45,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 22:45:45,817 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:45,817 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:46,017 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable743 [2021-03-10 22:45:46,018 INFO L428 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:46,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:46,018 INFO L82 PathProgramCache]: Analyzing trace with hash -372782154, now seen corresponding path program 85 times [2021-03-10 22:45:46,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:46,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331515793] [2021-03-10 22:45:46,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:46,118 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 24 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:46,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331515793] [2021-03-10 22:45:46,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659200697] [2021-03-10 22:45:46,118 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 86 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 86 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:46,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:46,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-10 22:45:46,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:46,408 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 24 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:46,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:46,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2021-03-10 22:45:46,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72613100] [2021-03-10 22:45:46,409 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 22:45:46,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:46,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 22:45:46,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=616, Unknown=0, NotChecked=0, Total=756 [2021-03-10 22:45:46,409 INFO L87 Difference]: Start difference. First operand 11149 states and 28998 transitions. Second operand has 28 states, 28 states have (on average 2.2142857142857144) internal successors, (62), 27 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:48,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:48,016 INFO L93 Difference]: Finished difference Result 13990 states and 34960 transitions. [2021-03-10 22:45:48,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-03-10 22:45:48,017 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.2142857142857144) internal successors, (62), 27 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 22:45:48,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:48,032 INFO L225 Difference]: With dead ends: 13990 [2021-03-10 22:45:48,032 INFO L226 Difference]: Without dead ends: 13948 [2021-03-10 22:45:48,033 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2949 ImplicationChecksByTransitivity, 1460.2ms TimeCoverageRelationStatistics Valid=1998, Invalid=6558, Unknown=0, NotChecked=0, Total=8556 [2021-03-10 22:45:48,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13948 states. [2021-03-10 22:45:48,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13948 to 9962. [2021-03-10 22:45:48,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9962 states, 9961 states have (on average 2.597731151490814) internal successors, (25876), 9961 states have internal predecessors, (25876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:48,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9962 states to 9962 states and 25876 transitions. [2021-03-10 22:45:48,177 INFO L78 Accepts]: Start accepts. Automaton has 9962 states and 25876 transitions. Word has length 36 [2021-03-10 22:45:48,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:48,177 INFO L480 AbstractCegarLoop]: Abstraction has 9962 states and 25876 transitions. [2021-03-10 22:45:48,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.2142857142857144) internal successors, (62), 27 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:48,177 INFO L276 IsEmpty]: Start isEmpty. Operand 9962 states and 25876 transitions. [2021-03-10 22:45:48,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 22:45:48,183 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:48,183 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:48,383 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable744,86 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:48,383 INFO L428 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:48,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:48,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1742466442, now seen corresponding path program 86 times [2021-03-10 22:45:48,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:48,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200379344] [2021-03-10 22:45:48,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:48,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:48,516 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 24 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:45:48,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200379344] [2021-03-10 22:45:48,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069288831] [2021-03-10 22:45:48,516 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 87 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-10 22:45:48,552 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 22:45:48,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:45:48,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-10 22:45:48,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 87 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:48,826 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 20 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:48,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:48,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2021-03-10 22:45:48,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058049844] [2021-03-10 22:45:48,827 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-03-10 22:45:48,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:48,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-03-10 22:45:48,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=665, Unknown=0, NotChecked=0, Total=812 [2021-03-10 22:45:48,827 INFO L87 Difference]: Start difference. First operand 9962 states and 25876 transitions. Second operand has 29 states, 29 states have (on average 2.2413793103448274) internal successors, (65), 28 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:50,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:50,499 INFO L93 Difference]: Finished difference Result 12322 states and 30673 transitions. [2021-03-10 22:45:50,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-03-10 22:45:50,500 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.2413793103448274) internal successors, (65), 28 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 22:45:50,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:50,512 INFO L225 Difference]: With dead ends: 12322 [2021-03-10 22:45:50,512 INFO L226 Difference]: Without dead ends: 12322 [2021-03-10 22:45:50,512 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2304 ImplicationChecksByTransitivity, 1459.5ms TimeCoverageRelationStatistics Valid=1981, Invalid=6029, Unknown=0, NotChecked=0, Total=8010 [2021-03-10 22:45:50,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12322 states. [2021-03-10 22:45:50,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12322 to 8944. [2021-03-10 22:45:50,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8944 states, 8943 states have (on average 2.5896231689589624) internal successors, (23159), 8943 states have internal predecessors, (23159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:50,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8944 states to 8944 states and 23159 transitions. [2021-03-10 22:45:50,657 INFO L78 Accepts]: Start accepts. Automaton has 8944 states and 23159 transitions. Word has length 36 [2021-03-10 22:45:50,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:50,657 INFO L480 AbstractCegarLoop]: Abstraction has 8944 states and 23159 transitions. [2021-03-10 22:45:50,658 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.2413793103448274) internal successors, (65), 28 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:50,658 INFO L276 IsEmpty]: Start isEmpty. Operand 8944 states and 23159 transitions. [2021-03-10 22:45:50,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 22:45:50,663 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:50,663 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:50,864 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable745 [2021-03-10 22:45:50,864 INFO L428 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:50,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:50,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1833765810, now seen corresponding path program 87 times [2021-03-10 22:45:50,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:50,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608288699] [2021-03-10 22:45:50,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:50,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:50,973 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 27 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:45:50,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608288699] [2021-03-10 22:45:50,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713304198] [2021-03-10 22:45:50,974 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:51,000 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-03-10 22:45:51,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:45:51,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-10 22:45:51,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:51,289 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 27 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:51,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:51,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2021-03-10 22:45:51,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634751564] [2021-03-10 22:45:51,290 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 22:45:51,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:51,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 22:45:51,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=626, Unknown=0, NotChecked=0, Total=756 [2021-03-10 22:45:51,290 INFO L87 Difference]: Start difference. First operand 8944 states and 23159 transitions. Second operand has 28 states, 28 states have (on average 2.25) internal successors, (63), 27 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:53,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:53,087 INFO L93 Difference]: Finished difference Result 10626 states and 26434 transitions. [2021-03-10 22:45:53,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-03-10 22:45:53,088 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.25) internal successors, (63), 27 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 22:45:53,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:53,100 INFO L225 Difference]: With dead ends: 10626 [2021-03-10 22:45:53,100 INFO L226 Difference]: Without dead ends: 10527 [2021-03-10 22:45:53,101 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3285 ImplicationChecksByTransitivity, 1656.0ms TimeCoverageRelationStatistics Valid=2020, Invalid=7486, Unknown=0, NotChecked=0, Total=9506 [2021-03-10 22:45:53,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10527 states. [2021-03-10 22:45:53,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10527 to 8656. [2021-03-10 22:45:53,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8656 states, 8655 states have (on average 2.577007510109763) internal successors, (22304), 8655 states have internal predecessors, (22304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:53,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8656 states to 8656 states and 22304 transitions. [2021-03-10 22:45:53,228 INFO L78 Accepts]: Start accepts. Automaton has 8656 states and 22304 transitions. Word has length 36 [2021-03-10 22:45:53,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:53,229 INFO L480 AbstractCegarLoop]: Abstraction has 8656 states and 22304 transitions. [2021-03-10 22:45:53,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.25) internal successors, (63), 27 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:53,229 INFO L276 IsEmpty]: Start isEmpty. Operand 8656 states and 22304 transitions. [2021-03-10 22:45:53,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 22:45:53,234 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:53,234 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:53,434 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable746,88 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:53,435 INFO L428 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:53,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:53,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1703939702, now seen corresponding path program 88 times [2021-03-10 22:45:53,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:53,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872657355] [2021-03-10 22:45:53,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:53,542 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 23 proven. 37 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:45:53,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872657355] [2021-03-10 22:45:53,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863014417] [2021-03-10 22:45:53,542 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 89 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 89 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:53,562 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 22:45:53,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:45:53,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-10 22:45:53,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:53,824 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 20 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:53,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:53,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2021-03-10 22:45:53,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150607900] [2021-03-10 22:45:53,824 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 22:45:53,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:53,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 22:45:53,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=624, Unknown=0, NotChecked=0, Total=756 [2021-03-10 22:45:53,825 INFO L87 Difference]: Start difference. First operand 8656 states and 22304 transitions. Second operand has 28 states, 28 states have (on average 2.3214285714285716) internal successors, (65), 27 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:55,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:55,626 INFO L93 Difference]: Finished difference Result 11669 states and 28734 transitions. [2021-03-10 22:45:55,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-03-10 22:45:55,627 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.3214285714285716) internal successors, (65), 27 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 22:45:55,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:55,639 INFO L225 Difference]: With dead ends: 11669 [2021-03-10 22:45:55,640 INFO L226 Difference]: Without dead ends: 11669 [2021-03-10 22:45:55,640 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2824 ImplicationChecksByTransitivity, 1573.0ms TimeCoverageRelationStatistics Valid=2270, Invalid=6660, Unknown=0, NotChecked=0, Total=8930 [2021-03-10 22:45:55,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11669 states. [2021-03-10 22:45:55,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11669 to 7769. [2021-03-10 22:45:55,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7769 states, 7768 states have (on average 2.5607621009268797) internal successors, (19892), 7768 states have internal predecessors, (19892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:55,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7769 states to 7769 states and 19892 transitions. [2021-03-10 22:45:55,748 INFO L78 Accepts]: Start accepts. Automaton has 7769 states and 19892 transitions. Word has length 36 [2021-03-10 22:45:55,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:55,748 INFO L480 AbstractCegarLoop]: Abstraction has 7769 states and 19892 transitions. [2021-03-10 22:45:55,748 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.3214285714285716) internal successors, (65), 27 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:55,749 INFO L276 IsEmpty]: Start isEmpty. Operand 7769 states and 19892 transitions. [2021-03-10 22:45:55,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 22:45:55,753 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:55,753 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:55,954 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable747,89 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:55,954 INFO L428 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:55,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:55,954 INFO L82 PathProgramCache]: Analyzing trace with hash 366880434, now seen corresponding path program 89 times [2021-03-10 22:45:55,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:55,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531618663] [2021-03-10 22:45:55,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:56,051 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 23 proven. 37 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:45:56,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531618663] [2021-03-10 22:45:56,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360167822] [2021-03-10 22:45:56,051 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:56,073 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-03-10 22:45:56,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:45:56,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-10 22:45:56,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:56,338 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 22 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:56,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:56,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 26 [2021-03-10 22:45:56,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555589162] [2021-03-10 22:45:56,339 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-03-10 22:45:56,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:56,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-03-10 22:45:56,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=580, Unknown=0, NotChecked=0, Total=702 [2021-03-10 22:45:56,339 INFO L87 Difference]: Start difference. First operand 7769 states and 19892 transitions. Second operand has 27 states, 27 states have (on average 2.3333333333333335) internal successors, (63), 26 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:57,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:45:57,940 INFO L93 Difference]: Finished difference Result 9358 states and 23204 transitions. [2021-03-10 22:45:57,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-03-10 22:45:57,940 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.3333333333333335) internal successors, (63), 26 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 22:45:57,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:45:57,951 INFO L225 Difference]: With dead ends: 9358 [2021-03-10 22:45:57,952 INFO L226 Difference]: Without dead ends: 9292 [2021-03-10 22:45:57,952 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2837 ImplicationChecksByTransitivity, 1416.9ms TimeCoverageRelationStatistics Valid=1697, Invalid=6313, Unknown=0, NotChecked=0, Total=8010 [2021-03-10 22:45:57,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9292 states. [2021-03-10 22:45:58,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9292 to 7746. [2021-03-10 22:45:58,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7746 states, 7745 states have (on average 2.5536475145255) internal successors, (19778), 7745 states have internal predecessors, (19778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:58,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7746 states to 7746 states and 19778 transitions. [2021-03-10 22:45:58,072 INFO L78 Accepts]: Start accepts. Automaton has 7746 states and 19778 transitions. Word has length 36 [2021-03-10 22:45:58,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:45:58,072 INFO L480 AbstractCegarLoop]: Abstraction has 7746 states and 19778 transitions. [2021-03-10 22:45:58,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.3333333333333335) internal successors, (63), 26 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:45:58,072 INFO L276 IsEmpty]: Start isEmpty. Operand 7746 states and 19778 transitions. [2021-03-10 22:45:58,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 22:45:58,077 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:45:58,077 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:45:58,277 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable748,90 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:58,278 INFO L428 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:45:58,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:45:58,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1439369846, now seen corresponding path program 90 times [2021-03-10 22:45:58,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:45:58,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473536710] [2021-03-10 22:45:58,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:45:58,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:45:58,370 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 22 proven. 38 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:45:58,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473536710] [2021-03-10 22:45:58,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126882776] [2021-03-10 22:45:58,371 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 91 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 91 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:45:58,393 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-03-10 22:45:58,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:45:58,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-10 22:45:58,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:45:58,653 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 20 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:45:58,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:45:58,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 26 [2021-03-10 22:45:58,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291765754] [2021-03-10 22:45:58,654 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-03-10 22:45:58,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:45:58,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-03-10 22:45:58,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=581, Unknown=0, NotChecked=0, Total=702 [2021-03-10 22:45:58,654 INFO L87 Difference]: Start difference. First operand 7746 states and 19778 transitions. Second operand has 27 states, 27 states have (on average 2.4074074074074074) internal successors, (65), 26 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:00,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:46:00,718 INFO L93 Difference]: Finished difference Result 11275 states and 27529 transitions. [2021-03-10 22:46:00,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-03-10 22:46:00,719 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.4074074074074074) internal successors, (65), 26 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 22:46:00,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:46:00,730 INFO L225 Difference]: With dead ends: 11275 [2021-03-10 22:46:00,730 INFO L226 Difference]: Without dead ends: 11275 [2021-03-10 22:46:00,731 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3564 ImplicationChecksByTransitivity, 1756.3ms TimeCoverageRelationStatistics Valid=2740, Invalid=7562, Unknown=0, NotChecked=0, Total=10302 [2021-03-10 22:46:00,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11275 states. [2021-03-10 22:46:00,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11275 to 7094. [2021-03-10 22:46:00,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7094 states, 7093 states have (on average 2.531791907514451) internal successors, (17958), 7093 states have internal predecessors, (17958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:00,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7094 states to 7094 states and 17958 transitions. [2021-03-10 22:46:00,840 INFO L78 Accepts]: Start accepts. Automaton has 7094 states and 17958 transitions. Word has length 36 [2021-03-10 22:46:00,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:46:00,840 INFO L480 AbstractCegarLoop]: Abstraction has 7094 states and 17958 transitions. [2021-03-10 22:46:00,840 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.4074074074074074) internal successors, (65), 26 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:00,841 INFO L276 IsEmpty]: Start isEmpty. Operand 7094 states and 17958 transitions. [2021-03-10 22:46:00,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 22:46:00,845 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:46:00,845 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:46:01,045 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable749,91 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:46:01,045 INFO L428 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:46:01,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:46:01,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1442447794, now seen corresponding path program 91 times [2021-03-10 22:46:01,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:46:01,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275313269] [2021-03-10 22:46:01,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:46:01,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:46:01,146 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 23 proven. 37 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:46:01,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275313269] [2021-03-10 22:46:01,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111743763] [2021-03-10 22:46:01,146 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:46:01,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:46:01,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-10 22:46:01,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:46:01,501 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 21 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:46:01,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:46:01,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 25 [2021-03-10 22:46:01,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639124301] [2021-03-10 22:46:01,502 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 22:46:01,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:46:01,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 22:46:01,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=532, Unknown=0, NotChecked=0, Total=650 [2021-03-10 22:46:01,503 INFO L87 Difference]: Start difference. First operand 7094 states and 17958 transitions. Second operand has 26 states, 26 states have (on average 2.423076923076923) internal successors, (63), 25 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:03,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:46:03,000 INFO L93 Difference]: Finished difference Result 8391 states and 20772 transitions. [2021-03-10 22:46:03,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-03-10 22:46:03,001 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.423076923076923) internal successors, (63), 25 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 22:46:03,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:46:03,009 INFO L225 Difference]: With dead ends: 8391 [2021-03-10 22:46:03,010 INFO L226 Difference]: Without dead ends: 8352 [2021-03-10 22:46:03,010 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2476 ImplicationChecksByTransitivity, 1361.0ms TimeCoverageRelationStatistics Valid=1507, Invalid=5465, Unknown=0, NotChecked=0, Total=6972 [2021-03-10 22:46:03,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8352 states. [2021-03-10 22:46:03,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8352 to 7183. [2021-03-10 22:46:03,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7183 states, 7182 states have (on average 2.532442216652743) internal successors, (18188), 7182 states have internal predecessors, (18188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:03,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7183 states to 7183 states and 18188 transitions. [2021-03-10 22:46:03,149 INFO L78 Accepts]: Start accepts. Automaton has 7183 states and 18188 transitions. Word has length 36 [2021-03-10 22:46:03,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:46:03,149 INFO L480 AbstractCegarLoop]: Abstraction has 7183 states and 18188 transitions. [2021-03-10 22:46:03,149 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.423076923076923) internal successors, (63), 25 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:03,149 INFO L276 IsEmpty]: Start isEmpty. Operand 7183 states and 18188 transitions. [2021-03-10 22:46:03,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 22:46:03,154 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:46:03,154 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:46:03,354 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable750 [2021-03-10 22:46:03,354 INFO L428 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:46:03,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:46:03,355 INFO L82 PathProgramCache]: Analyzing trace with hash -795539850, now seen corresponding path program 92 times [2021-03-10 22:46:03,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:46:03,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560561369] [2021-03-10 22:46:03,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:46:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:46:03,439 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 21 proven. 39 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:46:03,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560561369] [2021-03-10 22:46:03,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673578803] [2021-03-10 22:46:03,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 93 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 93 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:46:03,459 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 22:46:03,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:46:03,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-10 22:46:03,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:46:03,718 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 20 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:46:03,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:46:03,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 25 [2021-03-10 22:46:03,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834313930] [2021-03-10 22:46:03,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 22:46:03,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:46:03,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 22:46:03,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=536, Unknown=0, NotChecked=0, Total=650 [2021-03-10 22:46:03,719 INFO L87 Difference]: Start difference. First operand 7183 states and 18188 transitions. Second operand has 26 states, 26 states have (on average 2.5) internal successors, (65), 25 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:05,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:46:05,864 INFO L93 Difference]: Finished difference Result 11937 states and 29010 transitions. [2021-03-10 22:46:05,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-03-10 22:46:05,865 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.5) internal successors, (65), 25 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 22:46:05,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:46:05,879 INFO L225 Difference]: With dead ends: 11937 [2021-03-10 22:46:05,879 INFO L226 Difference]: Without dead ends: 11937 [2021-03-10 22:46:05,880 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4334 ImplicationChecksByTransitivity, 1872.1ms TimeCoverageRelationStatistics Valid=3216, Invalid=8340, Unknown=0, NotChecked=0, Total=11556 [2021-03-10 22:46:05,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11937 states. [2021-03-10 22:46:06,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11937 to 8770. [2021-03-10 22:46:06,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8770 states, 8769 states have (on average 2.5070133424563803) internal successors, (21984), 8769 states have internal predecessors, (21984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:06,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8770 states to 8770 states and 21984 transitions. [2021-03-10 22:46:06,021 INFO L78 Accepts]: Start accepts. Automaton has 8770 states and 21984 transitions. Word has length 36 [2021-03-10 22:46:06,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:46:06,022 INFO L480 AbstractCegarLoop]: Abstraction has 8770 states and 21984 transitions. [2021-03-10 22:46:06,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.5) internal successors, (65), 25 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:06,022 INFO L276 IsEmpty]: Start isEmpty. Operand 8770 states and 21984 transitions. [2021-03-10 22:46:06,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 22:46:06,027 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:46:06,027 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:46:06,228 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 93 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable751 [2021-03-10 22:46:06,228 INFO L428 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:46:06,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:46:06,228 INFO L82 PathProgramCache]: Analyzing trace with hash 290495666, now seen corresponding path program 93 times [2021-03-10 22:46:06,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:46:06,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781653578] [2021-03-10 22:46:06,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:46:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:46:06,304 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 27 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:46:06,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781653578] [2021-03-10 22:46:06,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218403835] [2021-03-10 22:46:06,304 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 94 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 94 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:46:06,327 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-03-10 22:46:06,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:46:06,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-10 22:46:06,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:46:06,610 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 24 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:46:06,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:46:06,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15] total 24 [2021-03-10 22:46:06,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637142876] [2021-03-10 22:46:06,611 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 22:46:06,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:46:06,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 22:46:06,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2021-03-10 22:46:06,611 INFO L87 Difference]: Start difference. First operand 8770 states and 21984 transitions. Second operand has 25 states, 25 states have (on average 2.52) internal successors, (63), 24 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:08,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:46:08,121 INFO L93 Difference]: Finished difference Result 9544 states and 23558 transitions. [2021-03-10 22:46:08,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-03-10 22:46:08,122 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.52) internal successors, (63), 24 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 22:46:08,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:46:08,133 INFO L225 Difference]: With dead ends: 9544 [2021-03-10 22:46:08,133 INFO L226 Difference]: Without dead ends: 9526 [2021-03-10 22:46:08,133 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2221 ImplicationChecksByTransitivity, 1271.7ms TimeCoverageRelationStatistics Valid=1407, Invalid=4913, Unknown=0, NotChecked=0, Total=6320 [2021-03-10 22:46:08,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9526 states. [2021-03-10 22:46:08,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9526 to 8902. [2021-03-10 22:46:08,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8902 states, 8901 states have (on average 2.510055049994383) internal successors, (22342), 8901 states have internal predecessors, (22342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:08,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8902 states to 8902 states and 22342 transitions. [2021-03-10 22:46:08,259 INFO L78 Accepts]: Start accepts. Automaton has 8902 states and 22342 transitions. Word has length 36 [2021-03-10 22:46:08,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:46:08,259 INFO L480 AbstractCegarLoop]: Abstraction has 8902 states and 22342 transitions. [2021-03-10 22:46:08,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.52) internal successors, (63), 24 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:08,259 INFO L276 IsEmpty]: Start isEmpty. Operand 8902 states and 22342 transitions. [2021-03-10 22:46:08,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 22:46:08,266 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:46:08,267 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:46:08,472 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable752 [2021-03-10 22:46:08,473 INFO L428 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:46:08,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:46:08,473 INFO L82 PathProgramCache]: Analyzing trace with hash 766378614, now seen corresponding path program 94 times [2021-03-10 22:46:08,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:46:08,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418779080] [2021-03-10 22:46:08,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:46:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:46:08,559 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 20 proven. 40 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:46:08,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418779080] [2021-03-10 22:46:08,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196138199] [2021-03-10 22:46:08,559 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 95 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 95 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:46:08,579 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 22:46:08,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:46:08,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-10 22:46:08,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:46:08,847 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 20 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:46:08,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:46:08,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15] total 24 [2021-03-10 22:46:08,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657669112] [2021-03-10 22:46:08,848 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 22:46:08,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:46:08,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 22:46:08,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=489, Unknown=0, NotChecked=0, Total=600 [2021-03-10 22:46:08,848 INFO L87 Difference]: Start difference. First operand 8902 states and 22342 transitions. Second operand has 25 states, 25 states have (on average 2.64) internal successors, (66), 24 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:11,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:46:11,038 INFO L93 Difference]: Finished difference Result 15319 states and 37889 transitions. [2021-03-10 22:46:11,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-03-10 22:46:11,039 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.64) internal successors, (66), 24 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 22:46:11,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:46:11,057 INFO L225 Difference]: With dead ends: 15319 [2021-03-10 22:46:11,057 INFO L226 Difference]: Without dead ends: 15319 [2021-03-10 22:46:11,058 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4780 ImplicationChecksByTransitivity, 1932.2ms TimeCoverageRelationStatistics Valid=3440, Invalid=8770, Unknown=0, NotChecked=0, Total=12210 [2021-03-10 22:46:11,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15319 states. [2021-03-10 22:46:11,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15319 to 13330. [2021-03-10 22:46:11,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13330 states, 13329 states have (on average 2.5292219971490733) internal successors, (33712), 13329 states have internal predecessors, (33712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:11,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13330 states to 13330 states and 33712 transitions. [2021-03-10 22:46:11,320 INFO L78 Accepts]: Start accepts. Automaton has 13330 states and 33712 transitions. Word has length 36 [2021-03-10 22:46:11,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:46:11,320 INFO L480 AbstractCegarLoop]: Abstraction has 13330 states and 33712 transitions. [2021-03-10 22:46:11,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.64) internal successors, (66), 24 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:11,320 INFO L276 IsEmpty]: Start isEmpty. Operand 13330 states and 33712 transitions. [2021-03-10 22:46:11,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 22:46:11,327 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:46:11,327 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:46:11,528 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable753,95 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:46:11,528 INFO L428 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:46:11,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:46:11,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1179642020, now seen corresponding path program 95 times [2021-03-10 22:46:11,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:46:11,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677833320] [2021-03-10 22:46:11,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:46:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:46:11,599 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 31 proven. 29 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:46:11,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677833320] [2021-03-10 22:46:11,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334715460] [2021-03-10 22:46:11,599 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:46:11,623 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-03-10 22:46:11,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:46:11,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-10 22:46:11,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:46:11,879 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 27 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:46:11,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:46:11,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 15] total 23 [2021-03-10 22:46:11,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256144481] [2021-03-10 22:46:11,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-10 22:46:11,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:46:11,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-10 22:46:11,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2021-03-10 22:46:11,879 INFO L87 Difference]: Start difference. First operand 13330 states and 33712 transitions. Second operand has 24 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 23 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:13,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:46:13,225 INFO L93 Difference]: Finished difference Result 14924 states and 36958 transitions. [2021-03-10 22:46:13,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-03-10 22:46:13,230 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 23 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 22:46:13,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:46:13,249 INFO L225 Difference]: With dead ends: 14924 [2021-03-10 22:46:13,249 INFO L226 Difference]: Without dead ends: 14920 [2021-03-10 22:46:13,250 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2102 ImplicationChecksByTransitivity, 1180.2ms TimeCoverageRelationStatistics Valid=1750, Invalid=4570, Unknown=0, NotChecked=0, Total=6320 [2021-03-10 22:46:13,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14920 states. [2021-03-10 22:46:13,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14920 to 13086. [2021-03-10 22:46:13,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13086 states, 13085 states have (on average 2.525792892625143) internal successors, (33050), 13085 states have internal predecessors, (33050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:13,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13086 states to 13086 states and 33050 transitions. [2021-03-10 22:46:13,463 INFO L78 Accepts]: Start accepts. Automaton has 13086 states and 33050 transitions. Word has length 36 [2021-03-10 22:46:13,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:46:13,463 INFO L480 AbstractCegarLoop]: Abstraction has 13086 states and 33050 transitions. [2021-03-10 22:46:13,464 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 23 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:13,464 INFO L276 IsEmpty]: Start isEmpty. Operand 13086 states and 33050 transitions. [2021-03-10 22:46:13,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 22:46:13,471 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:46:13,471 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:46:13,671 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable754,96 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:46:13,671 INFO L428 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:46:13,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:46:13,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1685988286, now seen corresponding path program 96 times [2021-03-10 22:46:13,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:46:13,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292475648] [2021-03-10 22:46:13,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:46:13,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:46:13,771 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 26 proven. 34 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:46:13,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292475648] [2021-03-10 22:46:13,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899540482] [2021-03-10 22:46:13,772 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 97 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 97 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:46:13,801 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-03-10 22:46:13,801 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:46:13,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-10 22:46:13,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:46:14,087 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 23 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:46:14,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:46:14,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15] total 24 [2021-03-10 22:46:14,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902274529] [2021-03-10 22:46:14,088 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 22:46:14,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:46:14,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 22:46:14,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=491, Unknown=0, NotChecked=0, Total=600 [2021-03-10 22:46:14,088 INFO L87 Difference]: Start difference. First operand 13086 states and 33050 transitions. Second operand has 25 states, 25 states have (on average 2.48) internal successors, (62), 24 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:15,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:46:15,468 INFO L93 Difference]: Finished difference Result 15282 states and 37884 transitions. [2021-03-10 22:46:15,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-03-10 22:46:15,469 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.48) internal successors, (62), 24 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 22:46:15,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:46:15,486 INFO L225 Difference]: With dead ends: 15282 [2021-03-10 22:46:15,486 INFO L226 Difference]: Without dead ends: 15270 [2021-03-10 22:46:15,487 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2023 ImplicationChecksByTransitivity, 1258.3ms TimeCoverageRelationStatistics Valid=1595, Invalid=4567, Unknown=0, NotChecked=0, Total=6162 [2021-03-10 22:46:15,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15270 states. [2021-03-10 22:46:15,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15270 to 13017. [2021-03-10 22:46:15,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13017 states, 13016 states have (on average 2.528272894898586) internal successors, (32908), 13016 states have internal predecessors, (32908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:15,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13017 states to 13017 states and 32908 transitions. [2021-03-10 22:46:15,696 INFO L78 Accepts]: Start accepts. Automaton has 13017 states and 32908 transitions. Word has length 36 [2021-03-10 22:46:15,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:46:15,696 INFO L480 AbstractCegarLoop]: Abstraction has 13017 states and 32908 transitions. [2021-03-10 22:46:15,696 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.48) internal successors, (62), 24 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:15,696 INFO L276 IsEmpty]: Start isEmpty. Operand 13017 states and 32908 transitions. [2021-03-10 22:46:15,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 22:46:15,703 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:46:15,703 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:46:15,904 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable755 [2021-03-10 22:46:15,904 INFO L428 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:46:15,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:46:15,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1913209666, now seen corresponding path program 97 times [2021-03-10 22:46:15,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:46:15,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7394278] [2021-03-10 22:46:15,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:46:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:46:15,989 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 21 proven. 39 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:46:15,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7394278] [2021-03-10 22:46:15,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206241995] [2021-03-10 22:46:15,989 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:46:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:46:16,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-10 22:46:16,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:46:16,276 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 19 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:46:16,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:46:16,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 25 [2021-03-10 22:46:16,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582569435] [2021-03-10 22:46:16,277 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 22:46:16,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:46:16,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 22:46:16,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=536, Unknown=0, NotChecked=0, Total=650 [2021-03-10 22:46:16,277 INFO L87 Difference]: Start difference. First operand 13017 states and 32908 transitions. Second operand has 26 states, 26 states have (on average 2.3846153846153846) internal successors, (62), 25 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:17,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:46:17,643 INFO L93 Difference]: Finished difference Result 16039 states and 39737 transitions. [2021-03-10 22:46:17,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-03-10 22:46:17,644 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.3846153846153846) internal successors, (62), 25 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 22:46:17,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:46:17,662 INFO L225 Difference]: With dead ends: 16039 [2021-03-10 22:46:17,662 INFO L226 Difference]: Without dead ends: 16019 [2021-03-10 22:46:17,663 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2051 ImplicationChecksByTransitivity, 1204.0ms TimeCoverageRelationStatistics Valid=1551, Invalid=4769, Unknown=0, NotChecked=0, Total=6320 [2021-03-10 22:46:17,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16019 states. [2021-03-10 22:46:17,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16019 to 13397. [2021-03-10 22:46:17,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13397 states, 13396 states have (on average 2.5326216781128696) internal successors, (33927), 13396 states have internal predecessors, (33927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:17,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13397 states to 13397 states and 33927 transitions. [2021-03-10 22:46:17,865 INFO L78 Accepts]: Start accepts. Automaton has 13397 states and 33927 transitions. Word has length 36 [2021-03-10 22:46:17,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:46:17,865 INFO L480 AbstractCegarLoop]: Abstraction has 13397 states and 33927 transitions. [2021-03-10 22:46:17,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.3846153846153846) internal successors, (62), 25 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:17,866 INFO L276 IsEmpty]: Start isEmpty. Operand 13397 states and 33927 transitions. [2021-03-10 22:46:17,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 22:46:17,873 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:46:17,873 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:46:18,074 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable756 [2021-03-10 22:46:18,074 INFO L428 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:46:18,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:46:18,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1229623750, now seen corresponding path program 98 times [2021-03-10 22:46:18,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:46:18,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061210931] [2021-03-10 22:46:18,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:46:18,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:46:18,173 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 20 proven. 40 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:46:18,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061210931] [2021-03-10 22:46:18,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492461784] [2021-03-10 22:46:18,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 99 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 99 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:46:18,194 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 22:46:18,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:46:18,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-10 22:46:18,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:46:18,469 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 19 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:46:18,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:46:18,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 26 [2021-03-10 22:46:18,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333985569] [2021-03-10 22:46:18,470 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-03-10 22:46:18,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:46:18,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-03-10 22:46:18,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=579, Unknown=0, NotChecked=0, Total=702 [2021-03-10 22:46:18,470 INFO L87 Difference]: Start difference. First operand 13397 states and 33927 transitions. Second operand has 27 states, 27 states have (on average 2.2962962962962963) internal successors, (62), 26 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:19,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:46:19,982 INFO L93 Difference]: Finished difference Result 17468 states and 43250 transitions. [2021-03-10 22:46:19,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-03-10 22:46:19,983 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.2962962962962963) internal successors, (62), 26 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 22:46:19,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:46:20,005 INFO L225 Difference]: With dead ends: 17468 [2021-03-10 22:46:20,005 INFO L226 Difference]: Without dead ends: 17440 [2021-03-10 22:46:20,006 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2204 ImplicationChecksByTransitivity, 1332.3ms TimeCoverageRelationStatistics Valid=1619, Invalid=5187, Unknown=0, NotChecked=0, Total=6806 [2021-03-10 22:46:20,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17440 states. [2021-03-10 22:46:20,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17440 to 15583. [2021-03-10 22:46:20,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15583 states, 15582 states have (on average 2.5360672570915157) internal successors, (39517), 15582 states have internal predecessors, (39517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:20,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15583 states to 15583 states and 39517 transitions. [2021-03-10 22:46:20,295 INFO L78 Accepts]: Start accepts. Automaton has 15583 states and 39517 transitions. Word has length 36 [2021-03-10 22:46:20,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:46:20,295 INFO L480 AbstractCegarLoop]: Abstraction has 15583 states and 39517 transitions. [2021-03-10 22:46:20,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.2962962962962963) internal successors, (62), 26 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:20,295 INFO L276 IsEmpty]: Start isEmpty. Operand 15583 states and 39517 transitions. [2021-03-10 22:46:20,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 22:46:20,304 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:46:20,304 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:46:20,505 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable757,99 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:46:20,505 INFO L428 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:46:20,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:46:20,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1433554762, now seen corresponding path program 99 times [2021-03-10 22:46:20,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:46:20,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957005025] [2021-03-10 22:46:20,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:46:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:46:20,612 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 23 proven. 37 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:46:20,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957005025] [2021-03-10 22:46:20,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086684874] [2021-03-10 22:46:20,613 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 100 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 100 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:46:20,635 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-03-10 22:46:20,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:46:20,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-10 22:46:20,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:46:20,917 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 23 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:46:20,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:46:20,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2021-03-10 22:46:20,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650119126] [2021-03-10 22:46:20,917 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 22:46:20,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:46:20,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 22:46:20,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=620, Unknown=0, NotChecked=0, Total=756 [2021-03-10 22:46:20,917 INFO L87 Difference]: Start difference. First operand 15583 states and 39517 transitions. Second operand has 28 states, 28 states have (on average 2.2142857142857144) internal successors, (62), 27 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:22,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:46:22,483 INFO L93 Difference]: Finished difference Result 20026 states and 49571 transitions. [2021-03-10 22:46:22,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-03-10 22:46:22,484 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.2142857142857144) internal successors, (62), 27 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 22:46:22,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:46:22,507 INFO L225 Difference]: With dead ends: 20026 [2021-03-10 22:46:22,507 INFO L226 Difference]: Without dead ends: 19990 [2021-03-10 22:46:22,508 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2515 ImplicationChecksByTransitivity, 1445.6ms TimeCoverageRelationStatistics Valid=1799, Invalid=5857, Unknown=0, NotChecked=0, Total=7656 [2021-03-10 22:46:22,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19990 states. [2021-03-10 22:46:22,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19990 to 17983. [2021-03-10 22:46:22,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17983 states, 17982 states have (on average 2.533644755866978) internal successors, (45560), 17982 states have internal predecessors, (45560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:22,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17983 states to 17983 states and 45560 transitions. [2021-03-10 22:46:22,837 INFO L78 Accepts]: Start accepts. Automaton has 17983 states and 45560 transitions. Word has length 36 [2021-03-10 22:46:22,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:46:22,837 INFO L480 AbstractCegarLoop]: Abstraction has 17983 states and 45560 transitions. [2021-03-10 22:46:22,837 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.2142857142857144) internal successors, (62), 27 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:22,837 INFO L276 IsEmpty]: Start isEmpty. Operand 17983 states and 45560 transitions. [2021-03-10 22:46:22,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 22:46:22,846 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:46:22,846 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:46:23,047 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable758 [2021-03-10 22:46:23,047 INFO L428 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:46:23,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:46:23,047 INFO L82 PathProgramCache]: Analyzing trace with hash 157238322, now seen corresponding path program 100 times [2021-03-10 22:46:23,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:46:23,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554553370] [2021-03-10 22:46:23,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:46:23,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:46:23,168 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 31 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:46:23,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554553370] [2021-03-10 22:46:23,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922693426] [2021-03-10 22:46:23,168 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 101 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 101 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:46:23,189 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 22:46:23,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:46:23,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-10 22:46:23,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:46:23,483 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 31 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:46:23,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:46:23,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2021-03-10 22:46:23,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280769041] [2021-03-10 22:46:23,484 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-03-10 22:46:23,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:46:23,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-03-10 22:46:23,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=659, Unknown=0, NotChecked=0, Total=812 [2021-03-10 22:46:23,485 INFO L87 Difference]: Start difference. First operand 17983 states and 45560 transitions. Second operand has 29 states, 29 states have (on average 2.1379310344827585) internal successors, (62), 28 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:25,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:46:25,143 INFO L93 Difference]: Finished difference Result 19957 states and 49654 transitions. [2021-03-10 22:46:25,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-03-10 22:46:25,144 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.1379310344827585) internal successors, (62), 28 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 22:46:25,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:46:25,170 INFO L225 Difference]: With dead ends: 19957 [2021-03-10 22:46:25,170 INFO L226 Difference]: Without dead ends: 19913 [2021-03-10 22:46:25,171 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3033 ImplicationChecksByTransitivity, 1571.3ms TimeCoverageRelationStatistics Valid=2089, Invalid=6841, Unknown=0, NotChecked=0, Total=8930 [2021-03-10 22:46:25,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19913 states. [2021-03-10 22:46:25,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19913 to 18106. [2021-03-10 22:46:25,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18106 states, 18105 states have (on average 2.5389671361502346) internal successors, (45968), 18105 states have internal predecessors, (45968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:25,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18106 states to 18106 states and 45968 transitions. [2021-03-10 22:46:25,471 INFO L78 Accepts]: Start accepts. Automaton has 18106 states and 45968 transitions. Word has length 36 [2021-03-10 22:46:25,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:46:25,471 INFO L480 AbstractCegarLoop]: Abstraction has 18106 states and 45968 transitions. [2021-03-10 22:46:25,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.1379310344827585) internal successors, (62), 28 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:25,471 INFO L276 IsEmpty]: Start isEmpty. Operand 18106 states and 45968 transitions. [2021-03-10 22:46:25,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-03-10 22:46:25,483 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:46:25,483 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:46:25,685 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable759,101 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:46:25,685 INFO L428 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:46:25,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:46:25,685 INFO L82 PathProgramCache]: Analyzing trace with hash -380198988, now seen corresponding path program 101 times [2021-03-10 22:46:25,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:46:25,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355307568] [2021-03-10 22:46:25,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:46:25,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:46:25,733 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:46:25,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355307568] [2021-03-10 22:46:25,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778151935] [2021-03-10 22:46:25,733 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 102 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 102 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:46:25,757 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-03-10 22:46:25,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:46:25,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 45 conjunts are in the unsatisfiable core [2021-03-10 22:46:25,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:46:26,152 INFO L354 Elim1Store]: treesize reduction 96, result has 43.2 percent of original size [2021-03-10 22:46:26,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 163 treesize of output 143 [2021-03-10 22:46:26,959 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 22:46:27,004 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:46:27,500 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 22:46:27,500 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:163, output treesize:285 [2021-03-10 22:46:28,296 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-03-10 22:46:30,224 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-03-10 22:46:32,855 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 324 DAG size of output: 48 [2021-03-10 22:46:33,161 INFO L354 Elim1Store]: treesize reduction 118, result has 2.5 percent of original size [2021-03-10 22:46:33,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 146 treesize of output 58 [2021-03-10 22:46:33,163 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:46:33,298 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 84 [2021-03-10 22:46:33,299 INFO L628 ElimStorePlain]: treesize reduction 454, result has 41.9 percent of original size [2021-03-10 22:46:33,362 INFO L354 Elim1Store]: treesize reduction 81, result has 33.1 percent of original size [2021-03-10 22:46:33,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 56 treesize of output 68 [2021-03-10 22:46:33,364 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 22:46:33,408 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:46:33,491 INFO L354 Elim1Store]: treesize reduction 60, result has 50.4 percent of original size [2021-03-10 22:46:33,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 81 treesize of output 102 [2021-03-10 22:46:33,495 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 22:46:33,506 INFO L628 ElimStorePlain]: treesize reduction 198, result has 1.5 percent of original size [2021-03-10 22:46:33,507 INFO L518 ElimStorePlain]: Eliminatee v_prenex_80 vanished before elimination [2021-03-10 22:46:33,507 INFO L518 ElimStorePlain]: Eliminatee v_prenex_79 vanished before elimination [2021-03-10 22:46:33,507 INFO L518 ElimStorePlain]: Eliminatee v_prenex_78 vanished before elimination [2021-03-10 22:46:33,507 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:46:33,507 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 12 variables, input treesize:920, output treesize:3 [2021-03-10 22:46:33,514 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:46:33,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:46:33,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14] total 20 [2021-03-10 22:46:33,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300875603] [2021-03-10 22:46:33,515 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-10 22:46:33,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:46:33,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-10 22:46:33,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2021-03-10 22:46:33,515 INFO L87 Difference]: Start difference. First operand 18106 states and 45968 transitions. Second operand has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:34,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:46:34,081 INFO L93 Difference]: Finished difference Result 20298 states and 51395 transitions. [2021-03-10 22:46:34,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-10 22:46:34,082 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-03-10 22:46:34,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:46:34,107 INFO L225 Difference]: With dead ends: 20298 [2021-03-10 22:46:34,107 INFO L226 Difference]: Without dead ends: 20291 [2021-03-10 22:46:34,107 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 3792.3ms TimeCoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2021-03-10 22:46:34,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20291 states. [2021-03-10 22:46:34,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20291 to 19572. [2021-03-10 22:46:34,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19572 states, 19571 states have (on average 2.545552092381585) internal successors, (49819), 19571 states have internal predecessors, (49819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:34,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19572 states to 19572 states and 49819 transitions. [2021-03-10 22:46:34,466 INFO L78 Accepts]: Start accepts. Automaton has 19572 states and 49819 transitions. Word has length 38 [2021-03-10 22:46:34,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:46:34,466 INFO L480 AbstractCegarLoop]: Abstraction has 19572 states and 49819 transitions. [2021-03-10 22:46:34,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:34,466 INFO L276 IsEmpty]: Start isEmpty. Operand 19572 states and 49819 transitions. [2021-03-10 22:46:34,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-03-10 22:46:34,477 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:46:34,477 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:46:34,679 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable760 [2021-03-10 22:46:34,679 INFO L428 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:46:34,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:46:34,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1616439732, now seen corresponding path program 102 times [2021-03-10 22:46:34,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:46:34,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767388671] [2021-03-10 22:46:34,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:46:34,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:46:34,727 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:46:34,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767388671] [2021-03-10 22:46:34,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757822527] [2021-03-10 22:46:34,728 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 103 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 103 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:46:34,751 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-03-10 22:46:34,751 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:46:34,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 47 conjunts are in the unsatisfiable core [2021-03-10 22:46:34,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:46:35,072 INFO L446 ElimStorePlain]: Different costs {15=[f], 55=[f_inv]} [2021-03-10 22:46:35,150 INFO L354 Elim1Store]: treesize reduction 48, result has 60.3 percent of original size [2021-03-10 22:46:35,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 201 treesize of output 158 [2021-03-10 22:46:37,429 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 22:46:37,472 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:46:37,533 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:46:37,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 307 treesize of output 214 [2021-03-10 22:46:37,599 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 22:46:37,601 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:46:37,601 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:46:37,601 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:201, output treesize:3 [2021-03-10 22:46:37,612 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:46:37,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:46:37,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14] total 20 [2021-03-10 22:46:37,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007895574] [2021-03-10 22:46:37,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-10 22:46:37,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:46:37,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-10 22:46:37,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-03-10 22:46:37,613 INFO L87 Difference]: Start difference. First operand 19572 states and 49819 transitions. Second operand has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:37,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:46:37,868 INFO L93 Difference]: Finished difference Result 20658 states and 52485 transitions. [2021-03-10 22:46:37,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-10 22:46:37,869 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-03-10 22:46:37,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:46:37,896 INFO L225 Difference]: With dead ends: 20658 [2021-03-10 22:46:37,896 INFO L226 Difference]: Without dead ends: 20649 [2021-03-10 22:46:37,896 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 279.1ms TimeCoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-03-10 22:46:37,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20649 states. [2021-03-10 22:46:38,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20649 to 20358. [2021-03-10 22:46:38,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20358 states, 20357 states have (on average 2.5531758117600827) internal successors, (51975), 20357 states have internal predecessors, (51975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:38,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20358 states to 20358 states and 51975 transitions. [2021-03-10 22:46:38,278 INFO L78 Accepts]: Start accepts. Automaton has 20358 states and 51975 transitions. Word has length 38 [2021-03-10 22:46:38,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:46:38,278 INFO L480 AbstractCegarLoop]: Abstraction has 20358 states and 51975 transitions. [2021-03-10 22:46:38,278 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:38,278 INFO L276 IsEmpty]: Start isEmpty. Operand 20358 states and 51975 transitions. [2021-03-10 22:46:38,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-03-10 22:46:38,289 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:46:38,289 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:46:38,491 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1621,103 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:46:38,491 INFO L428 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:46:38,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:46:38,492 INFO L82 PathProgramCache]: Analyzing trace with hash 945582004, now seen corresponding path program 103 times [2021-03-10 22:46:38,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:46:38,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636909113] [2021-03-10 22:46:38,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:46:38,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:46:38,537 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:46:38,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636909113] [2021-03-10 22:46:38,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077773083] [2021-03-10 22:46:38,537 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 104 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 104 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:46:38,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:46:38,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 39 conjunts are in the unsatisfiable core [2021-03-10 22:46:38,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:46:38,939 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 59 [2021-03-10 22:46:38,940 INFO L354 Elim1Store]: treesize reduction 301, result has 33.0 percent of original size [2021-03-10 22:46:38,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 14 new quantified variables, introduced 36 case distinctions, treesize of input 158 treesize of output 200 [2021-03-10 22:46:38,943 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:46:38,984 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:46:38,985 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:46:38,985 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:158, output treesize:216 [2021-03-10 22:46:39,072 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-03-10 22:46:39,371 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 39 [2021-03-10 22:46:39,392 INFO L446 ElimStorePlain]: Different costs {3=[v_prenex_83], 6=[v_prenex_84], 10=[f], 15=[v_prenex_85]} [2021-03-10 22:46:39,407 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:46:39,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 19 treesize of output 37 [2021-03-10 22:46:39,409 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:46:39,417 INFO L628 ElimStorePlain]: treesize reduction 162, result has 1.8 percent of original size [2021-03-10 22:46:39,417 INFO L518 ElimStorePlain]: Eliminatee v_prenex_84 vanished before elimination [2021-03-10 22:46:39,417 INFO L518 ElimStorePlain]: Eliminatee f vanished before elimination [2021-03-10 22:46:39,417 INFO L518 ElimStorePlain]: Eliminatee v_prenex_85 vanished before elimination [2021-03-10 22:46:39,418 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:46:39,418 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:181, output treesize:3 [2021-03-10 22:46:39,429 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:46:39,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:46:39,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14] total 20 [2021-03-10 22:46:39,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951693896] [2021-03-10 22:46:39,429 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-10 22:46:39,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:46:39,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-10 22:46:39,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2021-03-10 22:46:39,430 INFO L87 Difference]: Start difference. First operand 20358 states and 51975 transitions. Second operand has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:39,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:46:39,753 INFO L93 Difference]: Finished difference Result 21714 states and 55240 transitions. [2021-03-10 22:46:39,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-10 22:46:39,754 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-03-10 22:46:39,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:46:39,784 INFO L225 Difference]: With dead ends: 21714 [2021-03-10 22:46:39,784 INFO L226 Difference]: Without dead ends: 21689 [2021-03-10 22:46:39,785 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 501.9ms TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2021-03-10 22:46:39,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21689 states. [2021-03-10 22:46:40,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21689 to 20898. [2021-03-10 22:46:40,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20898 states, 20897 states have (on average 2.5599368330382353) internal successors, (53495), 20897 states have internal predecessors, (53495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:40,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20898 states to 20898 states and 53495 transitions. [2021-03-10 22:46:40,125 INFO L78 Accepts]: Start accepts. Automaton has 20898 states and 53495 transitions. Word has length 38 [2021-03-10 22:46:40,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:46:40,125 INFO L480 AbstractCegarLoop]: Abstraction has 20898 states and 53495 transitions. [2021-03-10 22:46:40,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:40,126 INFO L276 IsEmpty]: Start isEmpty. Operand 20898 states and 53495 transitions. [2021-03-10 22:46:40,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-03-10 22:46:40,137 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:46:40,137 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:46:40,338 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2415 [2021-03-10 22:46:40,338 INFO L428 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:46:40,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:46:40,338 INFO L82 PathProgramCache]: Analyzing trace with hash 496399796, now seen corresponding path program 104 times [2021-03-10 22:46:40,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:46:40,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897074348] [2021-03-10 22:46:40,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:46:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:46:40,389 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:46:40,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897074348] [2021-03-10 22:46:40,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093647866] [2021-03-10 22:46:40,390 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 105 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 105 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:46:40,414 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 22:46:40,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:46:40,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 39 conjunts are in the unsatisfiable core [2021-03-10 22:46:40,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:46:40,704 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 57 [2021-03-10 22:46:40,705 INFO L354 Elim1Store]: treesize reduction 190, result has 38.5 percent of original size [2021-03-10 22:46:40,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 13 new quantified variables, introduced 28 case distinctions, treesize of input 160 treesize of output 167 [2021-03-10 22:46:40,708 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:46:40,751 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:46:40,752 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:46:40,752 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:160, output treesize:186 [2021-03-10 22:46:40,836 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-03-10 22:46:41,061 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 42 [2021-03-10 22:46:41,154 INFO L446 ElimStorePlain]: Different costs {3=[v_prenex_86], 6=[v_prenex_88], 10=[f], 15=[v_prenex_87]} [2021-03-10 22:46:41,170 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:46:41,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 19 treesize of output 37 [2021-03-10 22:46:41,172 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:46:41,180 INFO L628 ElimStorePlain]: treesize reduction 162, result has 1.8 percent of original size [2021-03-10 22:46:41,181 INFO L518 ElimStorePlain]: Eliminatee v_prenex_88 vanished before elimination [2021-03-10 22:46:41,181 INFO L518 ElimStorePlain]: Eliminatee f vanished before elimination [2021-03-10 22:46:41,181 INFO L518 ElimStorePlain]: Eliminatee v_prenex_87 vanished before elimination [2021-03-10 22:46:41,181 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:46:41,181 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:181, output treesize:3 [2021-03-10 22:46:41,192 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:46:41,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:46:41,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14] total 20 [2021-03-10 22:46:41,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017122567] [2021-03-10 22:46:41,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-10 22:46:41,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:46:41,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-10 22:46:41,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2021-03-10 22:46:41,193 INFO L87 Difference]: Start difference. First operand 20898 states and 53495 transitions. Second operand has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:41,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:46:41,503 INFO L93 Difference]: Finished difference Result 22481 states and 57375 transitions. [2021-03-10 22:46:41,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 22:46:41,504 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-03-10 22:46:41,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:46:41,533 INFO L225 Difference]: With dead ends: 22481 [2021-03-10 22:46:41,534 INFO L226 Difference]: Without dead ends: 22452 [2021-03-10 22:46:41,534 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 464.0ms TimeCoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2021-03-10 22:46:41,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22452 states. [2021-03-10 22:46:41,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22452 to 21528. [2021-03-10 22:46:41,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21528 states, 21527 states have (on average 2.5663585265016025) internal successors, (55246), 21527 states have internal predecessors, (55246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:41,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21528 states to 21528 states and 55246 transitions. [2021-03-10 22:46:41,951 INFO L78 Accepts]: Start accepts. Automaton has 21528 states and 55246 transitions. Word has length 38 [2021-03-10 22:46:41,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:46:41,952 INFO L480 AbstractCegarLoop]: Abstraction has 21528 states and 55246 transitions. [2021-03-10 22:46:41,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:41,952 INFO L276 IsEmpty]: Start isEmpty. Operand 21528 states and 55246 transitions. [2021-03-10 22:46:41,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-03-10 22:46:41,967 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:46:41,967 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:46:42,167 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2421 [2021-03-10 22:46:42,168 INFO L428 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:46:42,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:46:42,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1670972492, now seen corresponding path program 105 times [2021-03-10 22:46:42,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:46:42,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931974663] [2021-03-10 22:46:42,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:46:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:46:42,219 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:46:42,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931974663] [2021-03-10 22:46:42,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364122814] [2021-03-10 22:46:42,219 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 106 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 106 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:46:42,247 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-03-10 22:46:42,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:46:42,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 43 conjunts are in the unsatisfiable core [2021-03-10 22:46:42,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:46:42,533 INFO L446 ElimStorePlain]: Different costs {28=[f_inv], 36=[f]} [2021-03-10 22:46:42,640 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 54 [2021-03-10 22:46:42,640 INFO L354 Elim1Store]: treesize reduction 171, result has 36.0 percent of original size [2021-03-10 22:46:42,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 14 new quantified variables, introduced 28 case distinctions, treesize of input 213 treesize of output 170 [2021-03-10 22:46:43,062 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 22:46:43,106 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:46:43,167 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:46:43,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 231 treesize of output 211 [2021-03-10 22:46:43,411 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 22:46:43,415 INFO L628 ElimStorePlain]: treesize reduction 9, result has 25.0 percent of original size [2021-03-10 22:46:43,415 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:46:43,415 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:213, output treesize:3 [2021-03-10 22:46:43,426 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:46:43,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:46:43,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14] total 20 [2021-03-10 22:46:43,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499941660] [2021-03-10 22:46:43,427 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-10 22:46:43,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:46:43,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-10 22:46:43,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-03-10 22:46:43,427 INFO L87 Difference]: Start difference. First operand 21528 states and 55246 transitions. Second operand has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:43,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:46:43,688 INFO L93 Difference]: Finished difference Result 23080 states and 59124 transitions. [2021-03-10 22:46:43,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-10 22:46:43,689 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-03-10 22:46:43,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:46:43,718 INFO L225 Difference]: With dead ends: 23080 [2021-03-10 22:46:43,718 INFO L226 Difference]: Without dead ends: 23054 [2021-03-10 22:46:43,718 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 263.2ms TimeCoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-03-10 22:46:43,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23054 states. [2021-03-10 22:46:44,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23054 to 22204. [2021-03-10 22:46:44,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22204 states, 22203 states have (on average 2.572535242985182) internal successors, (57118), 22203 states have internal predecessors, (57118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:44,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22204 states to 22204 states and 57118 transitions. [2021-03-10 22:46:44,161 INFO L78 Accepts]: Start accepts. Automaton has 22204 states and 57118 transitions. Word has length 38 [2021-03-10 22:46:44,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:46:44,162 INFO L480 AbstractCegarLoop]: Abstraction has 22204 states and 57118 transitions. [2021-03-10 22:46:44,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:44,162 INFO L276 IsEmpty]: Start isEmpty. Operand 22204 states and 57118 transitions. [2021-03-10 22:46:44,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-03-10 22:46:44,177 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:46:44,177 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:46:44,377 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2433 [2021-03-10 22:46:44,378 INFO L428 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:46:44,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:46:44,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1456602700, now seen corresponding path program 106 times [2021-03-10 22:46:44,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:46:44,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899238672] [2021-03-10 22:46:44,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:46:44,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:46:44,423 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:46:44,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899238672] [2021-03-10 22:46:44,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773572781] [2021-03-10 22:46:44,424 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 107 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 107 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:46:44,444 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 22:46:44,445 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:46:44,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 39 conjunts are in the unsatisfiable core [2021-03-10 22:46:44,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:46:44,650 INFO L354 Elim1Store]: treesize reduction 48, result has 63.4 percent of original size [2021-03-10 22:46:44,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 140 treesize of output 129 [2021-03-10 22:46:44,653 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:46:44,695 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:46:44,697 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:46:44,697 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:140, output treesize:284 [2021-03-10 22:46:45,151 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-03-10 22:46:47,591 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 324 DAG size of output: 48 [2021-03-10 22:46:48,157 INFO L446 ElimStorePlain]: Different costs {10=[v_prenex_100], 15=[f, v_prenex_101, v_prenex_99, v_prenex_102, v_prenex_103]} [2021-03-10 22:46:48,166 INFO L354 Elim1Store]: treesize reduction 80, result has 1.2 percent of original size [2021-03-10 22:46:48,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 160 treesize of output 46 [2021-03-10 22:46:48,168 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:46:48,305 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 81 [2021-03-10 22:46:48,305 INFO L628 ElimStorePlain]: treesize reduction 447, result has 42.9 percent of original size [2021-03-10 22:46:48,390 INFO L354 Elim1Store]: treesize reduction 60, result has 50.4 percent of original size [2021-03-10 22:46:48,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 87 treesize of output 99 [2021-03-10 22:46:48,393 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 22:46:48,432 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:46:48,454 INFO L354 Elim1Store]: treesize reduction 74, result has 8.6 percent of original size [2021-03-10 22:46:48,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 71 treesize of output 35 [2021-03-10 22:46:48,456 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 22:46:48,489 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:46:48,539 INFO L354 Elim1Store]: treesize reduction 44, result has 45.7 percent of original size [2021-03-10 22:46:48,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 62 [2021-03-10 22:46:48,553 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 22:46:48,592 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:46:48,629 INFO L354 Elim1Store]: treesize reduction 66, result has 18.5 percent of original size [2021-03-10 22:46:48,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 52 treesize of output 40 [2021-03-10 22:46:48,631 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-10 22:46:48,664 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:46:48,701 INFO L354 Elim1Store]: treesize reduction 57, result has 29.6 percent of original size [2021-03-10 22:46:48,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 58 treesize of output 49 [2021-03-10 22:46:48,703 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-03-10 22:46:48,725 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:46:48,728 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:46:48,728 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 12 variables, input treesize:936, output treesize:3 [2021-03-10 22:46:48,739 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:46:48,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:46:48,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14] total 20 [2021-03-10 22:46:48,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169255483] [2021-03-10 22:46:48,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-10 22:46:48,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:46:48,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-10 22:46:48,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2021-03-10 22:46:48,740 INFO L87 Difference]: Start difference. First operand 22204 states and 57118 transitions. Second operand has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:49,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:46:49,442 INFO L93 Difference]: Finished difference Result 23947 states and 61327 transitions. [2021-03-10 22:46:49,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-10 22:46:49,443 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-03-10 22:46:49,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:46:49,474 INFO L225 Difference]: With dead ends: 23947 [2021-03-10 22:46:49,474 INFO L226 Difference]: Without dead ends: 23910 [2021-03-10 22:46:49,475 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2399.2ms TimeCoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2021-03-10 22:46:49,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23910 states. [2021-03-10 22:46:49,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23910 to 22942. [2021-03-10 22:46:49,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22942 states, 22941 states have (on average 2.580489080685236) internal successors, (59199), 22941 states have internal predecessors, (59199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:49,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22942 states to 22942 states and 59199 transitions. [2021-03-10 22:46:49,872 INFO L78 Accepts]: Start accepts. Automaton has 22942 states and 59199 transitions. Word has length 38 [2021-03-10 22:46:49,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:46:49,872 INFO L480 AbstractCegarLoop]: Abstraction has 22942 states and 59199 transitions. [2021-03-10 22:46:49,872 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:49,872 INFO L276 IsEmpty]: Start isEmpty. Operand 22942 states and 59199 transitions. [2021-03-10 22:46:49,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-03-10 22:46:49,990 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:46:49,990 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:46:50,190 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2682,107 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:46:50,191 INFO L428 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:46:50,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:46:50,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1605662796, now seen corresponding path program 107 times [2021-03-10 22:46:50,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:46:50,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126777664] [2021-03-10 22:46:50,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:46:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:46:50,242 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:46:50,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126777664] [2021-03-10 22:46:50,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945555128] [2021-03-10 22:46:50,243 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 108 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 108 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:46:50,267 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-03-10 22:46:50,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:46:50,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 45 conjunts are in the unsatisfiable core [2021-03-10 22:46:50,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:46:50,597 INFO L354 Elim1Store]: treesize reduction 96, result has 43.2 percent of original size [2021-03-10 22:46:50,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 163 treesize of output 143 [2021-03-10 22:46:51,468 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 22:46:51,514 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:46:51,912 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 22:46:51,912 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:163, output treesize:285 [2021-03-10 22:46:52,826 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-03-10 22:46:54,607 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-03-10 22:46:54,914 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 324 [2021-03-10 22:46:57,070 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 324 DAG size of output: 48 [2021-03-10 22:46:57,405 INFO L354 Elim1Store]: treesize reduction 101, result has 16.5 percent of original size [2021-03-10 22:46:57,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 156 treesize of output 76 [2021-03-10 22:46:57,408 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:46:57,542 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 85 [2021-03-10 22:46:57,542 INFO L628 ElimStorePlain]: treesize reduction 442, result has 42.7 percent of original size [2021-03-10 22:46:57,579 INFO L354 Elim1Store]: treesize reduction 108, result has 10.7 percent of original size [2021-03-10 22:46:57,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 55 treesize of output 40 [2021-03-10 22:46:57,581 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 22:46:57,625 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:46:57,667 INFO L354 Elim1Store]: treesize reduction 103, result has 14.9 percent of original size [2021-03-10 22:46:57,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 56 treesize of output 46 [2021-03-10 22:46:57,669 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 22:46:57,709 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:46:57,743 INFO L354 Elim1Store]: treesize reduction 111, result has 8.3 percent of original size [2021-03-10 22:46:57,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 75 treesize of output 41 [2021-03-10 22:46:57,744 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 22:46:57,780 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:46:57,863 INFO L354 Elim1Store]: treesize reduction 60, result has 50.4 percent of original size [2021-03-10 22:46:57,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 81 treesize of output 102 [2021-03-10 22:46:57,867 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-10 22:46:57,878 INFO L628 ElimStorePlain]: treesize reduction 84, result has 3.4 percent of original size [2021-03-10 22:46:57,878 INFO L518 ElimStorePlain]: Eliminatee v_prenex_117 vanished before elimination [2021-03-10 22:46:57,879 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:46:57,879 INFO L247 ElimStorePlain]: Needed 6 recursive calls to eliminate 12 variables, input treesize:920, output treesize:3 [2021-03-10 22:46:57,890 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:46:57,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:46:57,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14] total 20 [2021-03-10 22:46:57,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273053387] [2021-03-10 22:46:57,890 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-10 22:46:57,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:46:57,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-10 22:46:57,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2021-03-10 22:46:57,891 INFO L87 Difference]: Start difference. First operand 22942 states and 59199 transitions. Second operand has 20 states, 20 states have (on average 3.0) internal successors, (60), 20 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:58,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:46:58,551 INFO L93 Difference]: Finished difference Result 24000 states and 61703 transitions. [2021-03-10 22:46:58,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-10 22:46:58,552 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.0) internal successors, (60), 20 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-03-10 22:46:58,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:46:58,581 INFO L225 Difference]: With dead ends: 24000 [2021-03-10 22:46:58,581 INFO L226 Difference]: Without dead ends: 23993 [2021-03-10 22:46:58,581 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 3479.4ms TimeCoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2021-03-10 22:46:58,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23993 states. [2021-03-10 22:46:58,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23993 to 23411. [2021-03-10 22:46:58,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23411 states, 23410 states have (on average 2.5850918410935497) internal successors, (60517), 23410 states have internal predecessors, (60517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:58,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23411 states to 23411 states and 60517 transitions. [2021-03-10 22:46:58,919 INFO L78 Accepts]: Start accepts. Automaton has 23411 states and 60517 transitions. Word has length 38 [2021-03-10 22:46:58,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:46:58,919 INFO L480 AbstractCegarLoop]: Abstraction has 23411 states and 60517 transitions. [2021-03-10 22:46:58,919 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.0) internal successors, (60), 20 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:46:58,919 INFO L276 IsEmpty]: Start isEmpty. Operand 23411 states and 60517 transitions. [2021-03-10 22:46:58,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:46:58,936 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:46:58,936 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:46:59,152 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2830 [2021-03-10 22:46:59,152 INFO L428 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:46:59,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:46:59,152 INFO L82 PathProgramCache]: Analyzing trace with hash -36252106, now seen corresponding path program 108 times [2021-03-10 22:46:59,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:46:59,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134858253] [2021-03-10 22:46:59,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:46:59,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:46:59,314 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 36 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:46:59,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134858253] [2021-03-10 22:46:59,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325008551] [2021-03-10 22:46:59,315 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 109 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 109 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:46:59,339 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-03-10 22:46:59,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:46:59,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:46:59,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:46:59,796 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 36 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:46:59,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:46:59,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 33 [2021-03-10 22:46:59,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808070397] [2021-03-10 22:46:59,797 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-03-10 22:46:59,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:46:59,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-03-10 22:46:59,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=908, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 22:46:59,797 INFO L87 Difference]: Start difference. First operand 23411 states and 60517 transitions. Second operand has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 33 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:02,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:47:02,184 INFO L93 Difference]: Finished difference Result 25898 states and 65777 transitions. [2021-03-10 22:47:02,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-03-10 22:47:02,185 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 33 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:47:02,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:47:02,223 INFO L225 Difference]: With dead ends: 25898 [2021-03-10 22:47:02,223 INFO L226 Difference]: Without dead ends: 25898 [2021-03-10 22:47:02,224 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3673 ImplicationChecksByTransitivity, 2063.0ms TimeCoverageRelationStatistics Valid=3180, Invalid=9030, Unknown=0, NotChecked=0, Total=12210 [2021-03-10 22:47:02,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25898 states. [2021-03-10 22:47:02,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25898 to 21896. [2021-03-10 22:47:02,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21896 states, 21895 states have (on average 2.5780771865722767) internal successors, (56447), 21895 states have internal predecessors, (56447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:02,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21896 states to 21896 states and 56447 transitions. [2021-03-10 22:47:02,570 INFO L78 Accepts]: Start accepts. Automaton has 21896 states and 56447 transitions. Word has length 40 [2021-03-10 22:47:02,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:47:02,570 INFO L480 AbstractCegarLoop]: Abstraction has 21896 states and 56447 transitions. [2021-03-10 22:47:02,570 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 33 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:02,571 INFO L276 IsEmpty]: Start isEmpty. Operand 21896 states and 56447 transitions. [2021-03-10 22:47:02,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:47:02,586 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:47:02,586 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:47:02,786 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3691,109 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:47:02,787 INFO L428 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:47:02,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:47:02,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1222061710, now seen corresponding path program 109 times [2021-03-10 22:47:02,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:47:02,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393757995] [2021-03-10 22:47:02,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:47:02,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:47:02,947 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 49 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:47:02,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393757995] [2021-03-10 22:47:02,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776775367] [2021-03-10 22:47:02,947 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 110 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 110 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:47:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:47:02,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:47:02,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:47:03,357 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 49 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:47:03,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:47:03,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-03-10 22:47:03,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100276392] [2021-03-10 22:47:03,358 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-03-10 22:47:03,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:47:03,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-03-10 22:47:03,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=875, Unknown=0, NotChecked=0, Total=1056 [2021-03-10 22:47:03,358 INFO L87 Difference]: Start difference. First operand 21896 states and 56447 transitions. Second operand has 33 states, 33 states have (on average 2.1818181818181817) internal successors, (72), 32 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:07,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:47:07,298 INFO L93 Difference]: Finished difference Result 30410 states and 76384 transitions. [2021-03-10 22:47:07,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2021-03-10 22:47:07,298 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.1818181818181817) internal successors, (72), 32 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:47:07,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:47:07,337 INFO L225 Difference]: With dead ends: 30410 [2021-03-10 22:47:07,337 INFO L226 Difference]: Without dead ends: 30222 [2021-03-10 22:47:07,339 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7844 ImplicationChecksByTransitivity, 3660.9ms TimeCoverageRelationStatistics Valid=4727, Invalid=17923, Unknown=0, NotChecked=0, Total=22650 [2021-03-10 22:47:07,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30222 states. [2021-03-10 22:47:07,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30222 to 22632. [2021-03-10 22:47:07,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22632 states, 22631 states have (on average 2.5780124607838806) internal successors, (58343), 22631 states have internal predecessors, (58343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:07,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22632 states to 22632 states and 58343 transitions. [2021-03-10 22:47:07,764 INFO L78 Accepts]: Start accepts. Automaton has 22632 states and 58343 transitions. Word has length 40 [2021-03-10 22:47:07,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:47:07,764 INFO L480 AbstractCegarLoop]: Abstraction has 22632 states and 58343 transitions. [2021-03-10 22:47:07,764 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.1818181818181817) internal successors, (72), 32 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:07,764 INFO L276 IsEmpty]: Start isEmpty. Operand 22632 states and 58343 transitions. [2021-03-10 22:47:07,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:47:07,779 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:47:07,779 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:47:07,979 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 110 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3692 [2021-03-10 22:47:07,980 INFO L428 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:47:07,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:47:07,980 INFO L82 PathProgramCache]: Analyzing trace with hash -714294378, now seen corresponding path program 110 times [2021-03-10 22:47:07,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:47:07,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825539462] [2021-03-10 22:47:07,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:47:07,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:47:08,094 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 49 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:47:08,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825539462] [2021-03-10 22:47:08,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492994840] [2021-03-10 22:47:08,094 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 111 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 111 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:47:08,117 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 22:47:08,117 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:47:08,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:47:08,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:47:08,538 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 49 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:47:08,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:47:08,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 17] total 26 [2021-03-10 22:47:08,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101429974] [2021-03-10 22:47:08,539 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-03-10 22:47:08,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:47:08,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-03-10 22:47:08,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=581, Unknown=0, NotChecked=0, Total=702 [2021-03-10 22:47:08,539 INFO L87 Difference]: Start difference. First operand 22632 states and 58343 transitions. Second operand has 27 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 26 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:11,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:47:11,812 INFO L93 Difference]: Finished difference Result 39864 states and 101563 transitions. [2021-03-10 22:47:11,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2021-03-10 22:47:11,812 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 26 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:47:11,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:47:11,868 INFO L225 Difference]: With dead ends: 39864 [2021-03-10 22:47:11,868 INFO L226 Difference]: Without dead ends: 39844 [2021-03-10 22:47:11,869 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6651 ImplicationChecksByTransitivity, 2850.0ms TimeCoverageRelationStatistics Valid=4595, Invalid=12961, Unknown=0, NotChecked=0, Total=17556 [2021-03-10 22:47:11,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39844 states. [2021-03-10 22:47:12,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39844 to 29497. [2021-03-10 22:47:12,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29497 states, 29496 states have (on average 2.577230810957418) internal successors, (76018), 29496 states have internal predecessors, (76018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:12,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29497 states to 29497 states and 76018 transitions. [2021-03-10 22:47:12,410 INFO L78 Accepts]: Start accepts. Automaton has 29497 states and 76018 transitions. Word has length 40 [2021-03-10 22:47:12,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:47:12,410 INFO L480 AbstractCegarLoop]: Abstraction has 29497 states and 76018 transitions. [2021-03-10 22:47:12,410 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 26 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:12,410 INFO L276 IsEmpty]: Start isEmpty. Operand 29497 states and 76018 transitions. [2021-03-10 22:47:12,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:47:12,426 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:47:12,426 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:47:12,627 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 111 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3693 [2021-03-10 22:47:12,627 INFO L428 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:47:12,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:47:12,627 INFO L82 PathProgramCache]: Analyzing trace with hash -2098192460, now seen corresponding path program 111 times [2021-03-10 22:47:12,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:47:12,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345911476] [2021-03-10 22:47:12,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:47:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:47:12,719 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 43 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:47:12,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345911476] [2021-03-10 22:47:12,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611279307] [2021-03-10 22:47:12,720 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 112 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 112 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:47:12,745 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-03-10 22:47:12,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:47:12,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:47:12,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:47:13,131 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 43 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:47:13,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:47:13,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 17] total 26 [2021-03-10 22:47:13,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776174235] [2021-03-10 22:47:13,131 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-03-10 22:47:13,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:47:13,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-03-10 22:47:13,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=544, Unknown=0, NotChecked=0, Total=702 [2021-03-10 22:47:13,132 INFO L87 Difference]: Start difference. First operand 29497 states and 76018 transitions. Second operand has 27 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 26 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:15,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:47:15,381 INFO L93 Difference]: Finished difference Result 30394 states and 77833 transitions. [2021-03-10 22:47:15,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-03-10 22:47:15,382 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 26 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:47:15,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:47:15,428 INFO L225 Difference]: With dead ends: 30394 [2021-03-10 22:47:15,428 INFO L226 Difference]: Without dead ends: 30390 [2021-03-10 22:47:15,429 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3712 ImplicationChecksByTransitivity, 2045.8ms TimeCoverageRelationStatistics Valid=2606, Invalid=8314, Unknown=0, NotChecked=0, Total=10920 [2021-03-10 22:47:15,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30390 states. [2021-03-10 22:47:15,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30390 to 29497. [2021-03-10 22:47:15,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29497 states, 29496 states have (on average 2.5766883645240033) internal successors, (76002), 29496 states have internal predecessors, (76002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:16,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29497 states to 29497 states and 76002 transitions. [2021-03-10 22:47:16,031 INFO L78 Accepts]: Start accepts. Automaton has 29497 states and 76002 transitions. Word has length 40 [2021-03-10 22:47:16,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:47:16,031 INFO L480 AbstractCegarLoop]: Abstraction has 29497 states and 76002 transitions. [2021-03-10 22:47:16,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 26 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:16,031 INFO L276 IsEmpty]: Start isEmpty. Operand 29497 states and 76002 transitions. [2021-03-10 22:47:16,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:47:16,049 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:47:16,049 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:47:16,251 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 112 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3694 [2021-03-10 22:47:16,251 INFO L428 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:47:16,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:47:16,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1992334194, now seen corresponding path program 112 times [2021-03-10 22:47:16,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:47:16,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702030402] [2021-03-10 22:47:16,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:47:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:47:16,339 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 53 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:47:16,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702030402] [2021-03-10 22:47:16,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876107913] [2021-03-10 22:47:16,339 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 113 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 113 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:47:16,360 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 22:47:16,361 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:47:16,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:47:16,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:47:16,692 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 43 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:47:16,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:47:16,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 17] total 26 [2021-03-10 22:47:16,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868583017] [2021-03-10 22:47:16,693 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-03-10 22:47:16,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:47:16,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-03-10 22:47:16,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=582, Unknown=0, NotChecked=0, Total=702 [2021-03-10 22:47:16,693 INFO L87 Difference]: Start difference. First operand 29497 states and 76002 transitions. Second operand has 27 states, 27 states have (on average 2.6666666666666665) internal successors, (72), 26 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:18,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:47:18,417 INFO L93 Difference]: Finished difference Result 37584 states and 96225 transitions. [2021-03-10 22:47:18,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-03-10 22:47:18,418 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.6666666666666665) internal successors, (72), 26 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:47:18,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:47:18,473 INFO L225 Difference]: With dead ends: 37584 [2021-03-10 22:47:18,473 INFO L226 Difference]: Without dead ends: 37560 [2021-03-10 22:47:18,474 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2330 ImplicationChecksByTransitivity, 1455.5ms TimeCoverageRelationStatistics Valid=1833, Invalid=5649, Unknown=0, NotChecked=0, Total=7482 [2021-03-10 22:47:18,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37560 states. [2021-03-10 22:47:18,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37560 to 29719. [2021-03-10 22:47:18,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29719 states, 29718 states have (on average 2.5852345379904436) internal successors, (76828), 29718 states have internal predecessors, (76828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:19,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29719 states to 29719 states and 76828 transitions. [2021-03-10 22:47:19,010 INFO L78 Accepts]: Start accepts. Automaton has 29719 states and 76828 transitions. Word has length 40 [2021-03-10 22:47:19,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:47:19,010 INFO L480 AbstractCegarLoop]: Abstraction has 29719 states and 76828 transitions. [2021-03-10 22:47:19,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.6666666666666665) internal successors, (72), 26 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:19,011 INFO L276 IsEmpty]: Start isEmpty. Operand 29719 states and 76828 transitions. [2021-03-10 22:47:19,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:47:19,027 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:47:19,027 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:47:19,228 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3695,113 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:47:19,228 INFO L428 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:47:19,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:47:19,228 INFO L82 PathProgramCache]: Analyzing trace with hash -1162838014, now seen corresponding path program 113 times [2021-03-10 22:47:19,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:47:19,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447791620] [2021-03-10 22:47:19,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:47:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:47:19,321 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 38 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:47:19,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447791620] [2021-03-10 22:47:19,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487568515] [2021-03-10 22:47:19,322 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 114 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 114 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:47:19,346 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2021-03-10 22:47:19,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:47:19,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:47:19,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:47:19,692 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 38 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:47:19,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:47:19,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 17] total 27 [2021-03-10 22:47:19,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805114298] [2021-03-10 22:47:19,693 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 22:47:19,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:47:19,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 22:47:19,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=602, Unknown=0, NotChecked=0, Total=756 [2021-03-10 22:47:19,693 INFO L87 Difference]: Start difference. First operand 29719 states and 76828 transitions. Second operand has 28 states, 28 states have (on average 2.5) internal successors, (70), 27 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:22,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:47:22,286 INFO L93 Difference]: Finished difference Result 32131 states and 82168 transitions. [2021-03-10 22:47:22,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-03-10 22:47:22,286 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.5) internal successors, (70), 27 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:47:22,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:47:22,335 INFO L225 Difference]: With dead ends: 32131 [2021-03-10 22:47:22,335 INFO L226 Difference]: Without dead ends: 32111 [2021-03-10 22:47:22,336 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3894 ImplicationChecksByTransitivity, 2191.3ms TimeCoverageRelationStatistics Valid=2672, Invalid=8670, Unknown=0, NotChecked=0, Total=11342 [2021-03-10 22:47:22,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32111 states. [2021-03-10 22:47:22,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32111 to 30307. [2021-03-10 22:47:22,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30307 states, 30306 states have (on average 2.587045469543985) internal successors, (78403), 30306 states have internal predecessors, (78403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:22,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30307 states to 30307 states and 78403 transitions. [2021-03-10 22:47:22,878 INFO L78 Accepts]: Start accepts. Automaton has 30307 states and 78403 transitions. Word has length 40 [2021-03-10 22:47:22,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:47:22,878 INFO L480 AbstractCegarLoop]: Abstraction has 30307 states and 78403 transitions. [2021-03-10 22:47:22,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.5) internal successors, (70), 27 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:22,878 INFO L276 IsEmpty]: Start isEmpty. Operand 30307 states and 78403 transitions. [2021-03-10 22:47:22,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:47:22,896 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:47:22,896 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:47:23,096 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3696,114 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:47:23,096 INFO L428 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:47:23,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:47:23,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1839241602, now seen corresponding path program 114 times [2021-03-10 22:47:23,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:47:23,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564184672] [2021-03-10 22:47:23,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:47:23,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:47:23,198 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 31 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:47:23,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564184672] [2021-03-10 22:47:23,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924715222] [2021-03-10 22:47:23,198 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 115 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 115 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:47:23,224 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-03-10 22:47:23,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:47:23,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:47:23,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:47:23,577 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 31 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:47:23,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:47:23,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17] total 28 [2021-03-10 22:47:23,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96354679] [2021-03-10 22:47:23,578 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-03-10 22:47:23,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:47:23,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-03-10 22:47:23,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=658, Unknown=0, NotChecked=0, Total=812 [2021-03-10 22:47:23,578 INFO L87 Difference]: Start difference. First operand 30307 states and 78403 transitions. Second operand has 29 states, 29 states have (on average 2.413793103448276) internal successors, (70), 28 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:25,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:47:25,993 INFO L93 Difference]: Finished difference Result 33401 states and 85130 transitions. [2021-03-10 22:47:25,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-03-10 22:47:25,994 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.413793103448276) internal successors, (70), 28 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:47:25,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:47:26,041 INFO L225 Difference]: With dead ends: 33401 [2021-03-10 22:47:26,041 INFO L226 Difference]: Without dead ends: 33361 [2021-03-10 22:47:26,042 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4153 ImplicationChecksByTransitivity, 2060.7ms TimeCoverageRelationStatistics Valid=2749, Invalid=9023, Unknown=0, NotChecked=0, Total=11772 [2021-03-10 22:47:26,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33361 states. [2021-03-10 22:47:26,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33361 to 30181. [2021-03-10 22:47:26,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30181 states, 30180 states have (on average 2.591186216037111) internal successors, (78202), 30180 states have internal predecessors, (78202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:26,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30181 states to 30181 states and 78202 transitions. [2021-03-10 22:47:26,555 INFO L78 Accepts]: Start accepts. Automaton has 30181 states and 78202 transitions. Word has length 40 [2021-03-10 22:47:26,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:47:26,555 INFO L480 AbstractCegarLoop]: Abstraction has 30181 states and 78202 transitions. [2021-03-10 22:47:26,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.413793103448276) internal successors, (70), 28 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:26,555 INFO L276 IsEmpty]: Start isEmpty. Operand 30181 states and 78202 transitions. [2021-03-10 22:47:26,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:47:26,575 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:47:26,575 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:47:26,777 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3697,115 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:47:26,777 INFO L428 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:47:26,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:47:26,777 INFO L82 PathProgramCache]: Analyzing trace with hash 971939322, now seen corresponding path program 115 times [2021-03-10 22:47:26,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:47:26,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357194494] [2021-03-10 22:47:26,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:47:26,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:47:26,927 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 28 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:47:26,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357194494] [2021-03-10 22:47:26,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297555046] [2021-03-10 22:47:26,927 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 116 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 116 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:47:26,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:47:26,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:47:26,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:47:27,454 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 28 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:47:27,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:47:27,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17] total 29 [2021-03-10 22:47:27,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473889650] [2021-03-10 22:47:27,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-03-10 22:47:27,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:47:27,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-03-10 22:47:27,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=712, Unknown=0, NotChecked=0, Total=870 [2021-03-10 22:47:27,455 INFO L87 Difference]: Start difference. First operand 30181 states and 78202 transitions. Second operand has 30 states, 30 states have (on average 2.3333333333333335) internal successors, (70), 29 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:29,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:47:29,865 INFO L93 Difference]: Finished difference Result 33916 states and 86143 transitions. [2021-03-10 22:47:29,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-03-10 22:47:29,866 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.3333333333333335) internal successors, (70), 29 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:47:29,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:47:29,913 INFO L225 Difference]: With dead ends: 33916 [2021-03-10 22:47:29,913 INFO L226 Difference]: Without dead ends: 33862 [2021-03-10 22:47:29,914 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4387 ImplicationChecksByTransitivity, 2097.1ms TimeCoverageRelationStatistics Valid=2836, Invalid=9374, Unknown=0, NotChecked=0, Total=12210 [2021-03-10 22:47:29,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33862 states. [2021-03-10 22:47:30,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33862 to 28876. [2021-03-10 22:47:30,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28876 states, 28875 states have (on average 2.596987012987013) internal successors, (74988), 28875 states have internal predecessors, (74988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:30,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28876 states to 28876 states and 74988 transitions. [2021-03-10 22:47:30,404 INFO L78 Accepts]: Start accepts. Automaton has 28876 states and 74988 transitions. Word has length 40 [2021-03-10 22:47:30,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:47:30,404 INFO L480 AbstractCegarLoop]: Abstraction has 28876 states and 74988 transitions. [2021-03-10 22:47:30,404 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.3333333333333335) internal successors, (70), 29 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:30,404 INFO L276 IsEmpty]: Start isEmpty. Operand 28876 states and 74988 transitions. [2021-03-10 22:47:30,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:47:30,420 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:47:30,420 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:47:30,620 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3698,116 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:47:30,620 INFO L428 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:47:30,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:47:30,620 INFO L82 PathProgramCache]: Analyzing trace with hash 982378102, now seen corresponding path program 116 times [2021-03-10 22:47:30,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:47:30,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237607337] [2021-03-10 22:47:30,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:47:30,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:47:30,784 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 29 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:47:30,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237607337] [2021-03-10 22:47:30,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880026551] [2021-03-10 22:47:30,785 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 117 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-10 22:47:30,813 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 22:47:30,813 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:47:30,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:47:30,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 117 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:47:31,281 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 29 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:47:31,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:47:31,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17] total 30 [2021-03-10 22:47:31,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945004463] [2021-03-10 22:47:31,281 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-03-10 22:47:31,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:47:31,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-03-10 22:47:31,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=764, Unknown=0, NotChecked=0, Total=930 [2021-03-10 22:47:31,282 INFO L87 Difference]: Start difference. First operand 28876 states and 74988 transitions. Second operand has 31 states, 31 states have (on average 2.2580645161290325) internal successors, (70), 30 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:33,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:47:33,713 INFO L93 Difference]: Finished difference Result 33473 states and 84685 transitions. [2021-03-10 22:47:33,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-03-10 22:47:33,714 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.2580645161290325) internal successors, (70), 30 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:47:33,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:47:33,763 INFO L225 Difference]: With dead ends: 33473 [2021-03-10 22:47:33,763 INFO L226 Difference]: Without dead ends: 33417 [2021-03-10 22:47:33,764 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4604 ImplicationChecksByTransitivity, 2263.6ms TimeCoverageRelationStatistics Valid=2932, Invalid=9724, Unknown=0, NotChecked=0, Total=12656 [2021-03-10 22:47:33,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33417 states. [2021-03-10 22:47:34,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33417 to 26468. [2021-03-10 22:47:34,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26468 states, 26467 states have (on average 2.601541542297956) internal successors, (68855), 26467 states have internal predecessors, (68855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:34,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26468 states to 26468 states and 68855 transitions. [2021-03-10 22:47:34,310 INFO L78 Accepts]: Start accepts. Automaton has 26468 states and 68855 transitions. Word has length 40 [2021-03-10 22:47:34,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:47:34,310 INFO L480 AbstractCegarLoop]: Abstraction has 26468 states and 68855 transitions. [2021-03-10 22:47:34,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 2.2580645161290325) internal successors, (70), 30 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:34,311 INFO L276 IsEmpty]: Start isEmpty. Operand 26468 states and 68855 transitions. [2021-03-10 22:47:34,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:47:34,325 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:47:34,326 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:47:34,526 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3699,117 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:47:34,526 INFO L428 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:47:34,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:47:34,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1870856206, now seen corresponding path program 117 times [2021-03-10 22:47:34,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:47:34,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905021788] [2021-03-10 22:47:34,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:47:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:47:34,692 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 34 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:47:34,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905021788] [2021-03-10 22:47:34,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676253372] [2021-03-10 22:47:34,693 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 118 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 118 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:47:34,717 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-03-10 22:47:34,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:47:34,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:47:34,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:47:35,103 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 34 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:47:35,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:47:35,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 31 [2021-03-10 22:47:35,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067072218] [2021-03-10 22:47:35,104 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-03-10 22:47:35,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:47:35,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-03-10 22:47:35,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=814, Unknown=0, NotChecked=0, Total=992 [2021-03-10 22:47:35,104 INFO L87 Difference]: Start difference. First operand 26468 states and 68855 transitions. Second operand has 32 states, 32 states have (on average 2.1875) internal successors, (70), 31 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:37,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:47:37,472 INFO L93 Difference]: Finished difference Result 32096 states and 80790 transitions. [2021-03-10 22:47:37,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-03-10 22:47:37,473 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.1875) internal successors, (70), 31 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:47:37,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:47:37,516 INFO L225 Difference]: With dead ends: 32096 [2021-03-10 22:47:37,517 INFO L226 Difference]: Without dead ends: 32046 [2021-03-10 22:47:37,518 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4740 ImplicationChecksByTransitivity, 2210.9ms TimeCoverageRelationStatistics Valid=3036, Invalid=10074, Unknown=0, NotChecked=0, Total=13110 [2021-03-10 22:47:37,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32046 states. [2021-03-10 22:47:37,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32046 to 24004. [2021-03-10 22:47:37,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24004 states, 24003 states have (on average 2.599633379160938) internal successors, (62399), 24003 states have internal predecessors, (62399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:37,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24004 states to 24004 states and 62399 transitions. [2021-03-10 22:47:37,901 INFO L78 Accepts]: Start accepts. Automaton has 24004 states and 62399 transitions. Word has length 40 [2021-03-10 22:47:37,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:47:37,901 INFO L480 AbstractCegarLoop]: Abstraction has 24004 states and 62399 transitions. [2021-03-10 22:47:37,902 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 2.1875) internal successors, (70), 31 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:37,902 INFO L276 IsEmpty]: Start isEmpty. Operand 24004 states and 62399 transitions. [2021-03-10 22:47:37,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:47:37,916 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:47:37,916 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:47:38,116 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3700,118 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:47:38,116 INFO L428 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:47:38,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:47:38,117 INFO L82 PathProgramCache]: Analyzing trace with hash -69717194, now seen corresponding path program 118 times [2021-03-10 22:47:38,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:47:38,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236412139] [2021-03-10 22:47:38,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:47:38,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:47:38,329 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 35 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:47:38,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236412139] [2021-03-10 22:47:38,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406342969] [2021-03-10 22:47:38,329 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 119 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 119 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:47:38,358 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 22:47:38,358 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:47:38,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:47:38,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:47:38,953 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:47:38,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:47:38,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-03-10 22:47:38,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116647179] [2021-03-10 22:47:38,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-03-10 22:47:38,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:47:38,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-03-10 22:47:38,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=869, Unknown=0, NotChecked=0, Total=1056 [2021-03-10 22:47:38,954 INFO L87 Difference]: Start difference. First operand 24004 states and 62399 transitions. Second operand has 33 states, 33 states have (on average 2.212121212121212) internal successors, (73), 32 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:41,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:47:41,585 INFO L93 Difference]: Finished difference Result 28131 states and 70967 transitions. [2021-03-10 22:47:41,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-03-10 22:47:41,586 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.212121212121212) internal successors, (73), 32 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:47:41,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:47:41,621 INFO L225 Difference]: With dead ends: 28131 [2021-03-10 22:47:41,622 INFO L226 Difference]: Without dead ends: 28131 [2021-03-10 22:47:41,623 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3698 ImplicationChecksByTransitivity, 2342.7ms TimeCoverageRelationStatistics Valid=2970, Invalid=9240, Unknown=0, NotChecked=0, Total=12210 [2021-03-10 22:47:41,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28131 states. [2021-03-10 22:47:41,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28131 to 21876. [2021-03-10 22:47:41,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21876 states, 21875 states have (on average 2.5954285714285716) internal successors, (56775), 21875 states have internal predecessors, (56775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:41,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21876 states to 21876 states and 56775 transitions. [2021-03-10 22:47:41,923 INFO L78 Accepts]: Start accepts. Automaton has 21876 states and 56775 transitions. Word has length 40 [2021-03-10 22:47:41,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:47:41,923 INFO L480 AbstractCegarLoop]: Abstraction has 21876 states and 56775 transitions. [2021-03-10 22:47:41,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.212121212121212) internal successors, (73), 32 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:41,923 INFO L276 IsEmpty]: Start isEmpty. Operand 21876 states and 56775 transitions. [2021-03-10 22:47:41,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:47:41,935 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:47:41,935 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:47:42,135 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 119 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3701 [2021-03-10 22:47:42,136 INFO L428 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:47:42,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:47:42,136 INFO L82 PathProgramCache]: Analyzing trace with hash 715640178, now seen corresponding path program 119 times [2021-03-10 22:47:42,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:47:42,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587469739] [2021-03-10 22:47:42,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:47:42,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:47:42,282 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 38 proven. 46 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:47:42,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587469739] [2021-03-10 22:47:42,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972987483] [2021-03-10 22:47:42,283 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 120 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 120 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:47:42,310 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-03-10 22:47:42,310 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:47:42,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:47:42,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:47:42,706 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 38 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:47:42,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:47:42,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 31 [2021-03-10 22:47:42,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672555200] [2021-03-10 22:47:42,706 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-03-10 22:47:42,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:47:42,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-03-10 22:47:42,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=826, Unknown=0, NotChecked=0, Total=992 [2021-03-10 22:47:42,707 INFO L87 Difference]: Start difference. First operand 21876 states and 56775 transitions. Second operand has 32 states, 32 states have (on average 2.21875) internal successors, (71), 31 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:45,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:47:45,760 INFO L93 Difference]: Finished difference Result 25120 states and 63294 transitions. [2021-03-10 22:47:45,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2021-03-10 22:47:45,761 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.21875) internal successors, (71), 31 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:47:45,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:47:45,796 INFO L225 Difference]: With dead ends: 25120 [2021-03-10 22:47:45,796 INFO L226 Difference]: Without dead ends: 24982 [2021-03-10 22:47:45,797 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5780 ImplicationChecksByTransitivity, 2791.5ms TimeCoverageRelationStatistics Valid=3320, Invalid=12682, Unknown=0, NotChecked=0, Total=16002 [2021-03-10 22:47:45,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24982 states. [2021-03-10 22:47:46,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24982 to 21296. [2021-03-10 22:47:46,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21296 states, 21295 states have (on average 2.5844094857947875) internal successors, (55035), 21295 states have internal predecessors, (55035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:46,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21296 states to 21296 states and 55035 transitions. [2021-03-10 22:47:46,175 INFO L78 Accepts]: Start accepts. Automaton has 21296 states and 55035 transitions. Word has length 40 [2021-03-10 22:47:46,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:47:46,175 INFO L480 AbstractCegarLoop]: Abstraction has 21296 states and 55035 transitions. [2021-03-10 22:47:46,175 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 2.21875) internal successors, (71), 31 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:46,175 INFO L276 IsEmpty]: Start isEmpty. Operand 21296 states and 55035 transitions. [2021-03-10 22:47:46,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:47:46,188 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:47:46,189 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:47:46,389 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3702,120 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:47:46,389 INFO L428 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:47:46,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:47:46,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1418514486, now seen corresponding path program 120 times [2021-03-10 22:47:46,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:47:46,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052498326] [2021-03-10 22:47:46,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:47:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:47:46,594 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 34 proven. 50 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:47:46,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052498326] [2021-03-10 22:47:46,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712500140] [2021-03-10 22:47:46,594 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 121 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 121 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:47:46,628 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-03-10 22:47:46,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:47:46,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:47:46,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:47:47,016 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:47:47,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:47:47,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 31 [2021-03-10 22:47:47,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657100190] [2021-03-10 22:47:47,016 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-03-10 22:47:47,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:47:47,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-03-10 22:47:47,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=823, Unknown=0, NotChecked=0, Total=992 [2021-03-10 22:47:47,017 INFO L87 Difference]: Start difference. First operand 21296 states and 55035 transitions. Second operand has 32 states, 32 states have (on average 2.28125) internal successors, (73), 31 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:49,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:47:49,935 INFO L93 Difference]: Finished difference Result 26874 states and 67135 transitions. [2021-03-10 22:47:49,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-03-10 22:47:49,936 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.28125) internal successors, (73), 31 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:47:49,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:47:49,971 INFO L225 Difference]: With dead ends: 26874 [2021-03-10 22:47:49,972 INFO L226 Difference]: Without dead ends: 26874 [2021-03-10 22:47:49,973 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4431 ImplicationChecksByTransitivity, 2513.5ms TimeCoverageRelationStatistics Valid=3338, Invalid=10234, Unknown=0, NotChecked=0, Total=13572 [2021-03-10 22:47:49,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26874 states. [2021-03-10 22:47:50,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26874 to 19476. [2021-03-10 22:47:50,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19476 states, 19475 states have (on average 2.5761232349165595) internal successors, (50170), 19475 states have internal predecessors, (50170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:50,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19476 states to 19476 states and 50170 transitions. [2021-03-10 22:47:50,295 INFO L78 Accepts]: Start accepts. Automaton has 19476 states and 50170 transitions. Word has length 40 [2021-03-10 22:47:50,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:47:50,295 INFO L480 AbstractCegarLoop]: Abstraction has 19476 states and 50170 transitions. [2021-03-10 22:47:50,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 2.28125) internal successors, (73), 31 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:50,295 INFO L276 IsEmpty]: Start isEmpty. Operand 19476 states and 50170 transitions. [2021-03-10 22:47:50,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:47:50,307 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:47:50,307 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:47:50,507 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3703,121 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:47:50,508 INFO L428 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:47:50,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:47:50,508 INFO L82 PathProgramCache]: Analyzing trace with hash 699779442, now seen corresponding path program 121 times [2021-03-10 22:47:50,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:47:50,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911366046] [2021-03-10 22:47:50,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:47:50,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:47:50,729 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 32 proven. 52 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:47:50,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911366046] [2021-03-10 22:47:50,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51184391] [2021-03-10 22:47:50,729 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 122 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 122 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:47:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:47:50,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:47:50,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:47:51,131 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 31 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:47:51,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:47:51,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17] total 30 [2021-03-10 22:47:51,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286787246] [2021-03-10 22:47:51,131 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-03-10 22:47:51,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:47:51,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-03-10 22:47:51,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=775, Unknown=0, NotChecked=0, Total=930 [2021-03-10 22:47:51,132 INFO L87 Difference]: Start difference. First operand 19476 states and 50170 transitions. Second operand has 31 states, 31 states have (on average 2.2903225806451615) internal successors, (71), 30 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:53,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:47:53,770 INFO L93 Difference]: Finished difference Result 22442 states and 56490 transitions. [2021-03-10 22:47:53,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-03-10 22:47:53,771 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.2903225806451615) internal successors, (71), 30 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:47:53,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:47:53,798 INFO L225 Difference]: With dead ends: 22442 [2021-03-10 22:47:53,799 INFO L226 Difference]: Without dead ends: 22343 [2021-03-10 22:47:53,800 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5030 ImplicationChecksByTransitivity, 2467.1ms TimeCoverageRelationStatistics Valid=2802, Invalid=10770, Unknown=0, NotChecked=0, Total=13572 [2021-03-10 22:47:53,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22343 states. [2021-03-10 22:47:54,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22343 to 19294. [2021-03-10 22:47:54,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19294 states, 19293 states have (on average 2.5669932099725288) internal successors, (49525), 19293 states have internal predecessors, (49525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:54,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19294 states to 19294 states and 49525 transitions. [2021-03-10 22:47:54,116 INFO L78 Accepts]: Start accepts. Automaton has 19294 states and 49525 transitions. Word has length 40 [2021-03-10 22:47:54,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:47:54,116 INFO L480 AbstractCegarLoop]: Abstraction has 19294 states and 49525 transitions. [2021-03-10 22:47:54,117 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 2.2903225806451615) internal successors, (71), 30 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:54,117 INFO L276 IsEmpty]: Start isEmpty. Operand 19294 states and 49525 transitions. [2021-03-10 22:47:54,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:47:54,127 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:47:54,127 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:47:54,328 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 122 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3704 [2021-03-10 22:47:54,328 INFO L428 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:47:54,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:47:54,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1681609418, now seen corresponding path program 122 times [2021-03-10 22:47:54,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:47:54,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986276153] [2021-03-10 22:47:54,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:47:54,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:47:54,465 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 33 proven. 51 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:47:54,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986276153] [2021-03-10 22:47:54,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212369113] [2021-03-10 22:47:54,465 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 123 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 123 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:47:54,487 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 22:47:54,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:47:54,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:47:54,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:47:54,865 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:47:54,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:47:54,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17] total 30 [2021-03-10 22:47:54,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197776173] [2021-03-10 22:47:54,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-03-10 22:47:54,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:47:54,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-03-10 22:47:54,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=775, Unknown=0, NotChecked=0, Total=930 [2021-03-10 22:47:54,866 INFO L87 Difference]: Start difference. First operand 19294 states and 49525 transitions. Second operand has 31 states, 31 states have (on average 2.3548387096774195) internal successors, (73), 30 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:58,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:47:58,112 INFO L93 Difference]: Finished difference Result 25902 states and 64230 transitions. [2021-03-10 22:47:58,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-03-10 22:47:58,113 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.3548387096774195) internal successors, (73), 30 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:47:58,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:47:58,144 INFO L225 Difference]: With dead ends: 25902 [2021-03-10 22:47:58,144 INFO L226 Difference]: Without dead ends: 25902 [2021-03-10 22:47:58,145 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5410 ImplicationChecksByTransitivity, 2729.0ms TimeCoverageRelationStatistics Valid=3958, Invalid=11542, Unknown=0, NotChecked=0, Total=15500 [2021-03-10 22:47:58,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25902 states. [2021-03-10 22:47:58,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25902 to 17898. [2021-03-10 22:47:58,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17898 states, 17897 states have (on average 2.5554003464267754) internal successors, (45734), 17897 states have internal predecessors, (45734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:58,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17898 states to 17898 states and 45734 transitions. [2021-03-10 22:47:58,490 INFO L78 Accepts]: Start accepts. Automaton has 17898 states and 45734 transitions. Word has length 40 [2021-03-10 22:47:58,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:47:58,490 INFO L480 AbstractCegarLoop]: Abstraction has 17898 states and 45734 transitions. [2021-03-10 22:47:58,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 2.3548387096774195) internal successors, (73), 30 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:47:58,490 INFO L276 IsEmpty]: Start isEmpty. Operand 17898 states and 45734 transitions. [2021-03-10 22:47:58,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:47:58,501 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:47:58,501 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:47:58,703 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3705,123 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:47:58,703 INFO L428 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:47:58,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:47:58,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1276298610, now seen corresponding path program 123 times [2021-03-10 22:47:58,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:47:58,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271369597] [2021-03-10 22:47:58,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:47:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:47:58,821 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 54 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:47:58,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271369597] [2021-03-10 22:47:58,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804928238] [2021-03-10 22:47:58,822 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 124 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 124 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:47:58,846 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-03-10 22:47:58,847 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:47:58,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:47:58,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:47:59,233 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 28 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:47:59,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:47:59,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17] total 29 [2021-03-10 22:47:59,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147853382] [2021-03-10 22:47:59,234 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-03-10 22:47:59,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:47:59,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-03-10 22:47:59,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=722, Unknown=0, NotChecked=0, Total=870 [2021-03-10 22:47:59,234 INFO L87 Difference]: Start difference. First operand 17898 states and 45734 transitions. Second operand has 30 states, 30 states have (on average 2.3666666666666667) internal successors, (71), 29 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:01,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:48:01,762 INFO L93 Difference]: Finished difference Result 20487 states and 51579 transitions. [2021-03-10 22:48:01,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-03-10 22:48:01,763 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.3666666666666667) internal successors, (71), 29 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:48:01,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:48:01,793 INFO L225 Difference]: With dead ends: 20487 [2021-03-10 22:48:01,794 INFO L226 Difference]: Without dead ends: 20421 [2021-03-10 22:48:01,795 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4431 ImplicationChecksByTransitivity, 2199.3ms TimeCoverageRelationStatistics Valid=2466, Invalid=9306, Unknown=0, NotChecked=0, Total=11772 [2021-03-10 22:48:01,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20421 states. [2021-03-10 22:48:02,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20421 to 18251. [2021-03-10 22:48:02,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18251 states, 18250 states have (on average 2.5564383561643838) internal successors, (46655), 18250 states have internal predecessors, (46655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:02,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18251 states to 18251 states and 46655 transitions. [2021-03-10 22:48:02,133 INFO L78 Accepts]: Start accepts. Automaton has 18251 states and 46655 transitions. Word has length 40 [2021-03-10 22:48:02,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:48:02,133 INFO L480 AbstractCegarLoop]: Abstraction has 18251 states and 46655 transitions. [2021-03-10 22:48:02,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.3666666666666667) internal successors, (71), 29 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:02,133 INFO L276 IsEmpty]: Start isEmpty. Operand 18251 states and 46655 transitions. [2021-03-10 22:48:02,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:48:02,149 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:48:02,149 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:48:02,363 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 124 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3706 [2021-03-10 22:48:02,363 INFO L428 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:48:02,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:48:02,363 INFO L82 PathProgramCache]: Analyzing trace with hash 424659510, now seen corresponding path program 124 times [2021-03-10 22:48:02,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:48:02,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68152336] [2021-03-10 22:48:02,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:48:02,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:48:02,528 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 32 proven. 52 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:48:02,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68152336] [2021-03-10 22:48:02,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219654847] [2021-03-10 22:48:02,528 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 125 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 125 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:48:02,551 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 22:48:02,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:48:02,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:48:02,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:48:02,945 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:48:02,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:48:02,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17] total 29 [2021-03-10 22:48:02,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207279204] [2021-03-10 22:48:02,945 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-03-10 22:48:02,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:48:02,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-03-10 22:48:02,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=725, Unknown=0, NotChecked=0, Total=870 [2021-03-10 22:48:02,946 INFO L87 Difference]: Start difference. First operand 18251 states and 46655 transitions. Second operand has 30 states, 30 states have (on average 2.433333333333333) internal successors, (73), 29 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:06,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:48:06,580 INFO L93 Difference]: Finished difference Result 25865 states and 63837 transitions. [2021-03-10 22:48:06,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-03-10 22:48:06,581 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.433333333333333) internal successors, (73), 29 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:48:06,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:48:06,614 INFO L225 Difference]: With dead ends: 25865 [2021-03-10 22:48:06,614 INFO L226 Difference]: Without dead ends: 25865 [2021-03-10 22:48:06,615 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6848 ImplicationChecksByTransitivity, 3106.5ms TimeCoverageRelationStatistics Valid=4818, Invalid=13272, Unknown=0, NotChecked=0, Total=18090 [2021-03-10 22:48:06,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25865 states. [2021-03-10 22:48:06,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25865 to 17253. [2021-03-10 22:48:06,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17253 states, 17252 states have (on average 2.541386505912358) internal successors, (43844), 17252 states have internal predecessors, (43844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:06,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17253 states to 17253 states and 43844 transitions. [2021-03-10 22:48:06,940 INFO L78 Accepts]: Start accepts. Automaton has 17253 states and 43844 transitions. Word has length 40 [2021-03-10 22:48:06,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:48:06,940 INFO L480 AbstractCegarLoop]: Abstraction has 17253 states and 43844 transitions. [2021-03-10 22:48:06,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.433333333333333) internal successors, (73), 29 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:06,940 INFO L276 IsEmpty]: Start isEmpty. Operand 17253 states and 43844 transitions. [2021-03-10 22:48:06,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:48:06,950 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:48:06,950 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:48:07,151 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 125 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3707 [2021-03-10 22:48:07,151 INFO L428 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:48:07,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:48:07,151 INFO L82 PathProgramCache]: Analyzing trace with hash 427737458, now seen corresponding path program 125 times [2021-03-10 22:48:07,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:48:07,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562646503] [2021-03-10 22:48:07,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:48:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:48:07,265 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 32 proven. 52 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:48:07,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562646503] [2021-03-10 22:48:07,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890654190] [2021-03-10 22:48:07,265 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 126 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 126 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:48:07,291 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-03-10 22:48:07,291 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:48:07,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:48:07,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:48:07,701 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 29 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:48:07,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:48:07,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17] total 28 [2021-03-10 22:48:07,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158145262] [2021-03-10 22:48:07,702 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-03-10 22:48:07,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:48:07,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-03-10 22:48:07,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2021-03-10 22:48:07,702 INFO L87 Difference]: Start difference. First operand 17253 states and 43844 transitions. Second operand has 29 states, 29 states have (on average 2.4482758620689653) internal successors, (71), 28 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:10,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:48:10,050 INFO L93 Difference]: Finished difference Result 19251 states and 48390 transitions. [2021-03-10 22:48:10,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-03-10 22:48:10,052 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.4482758620689653) internal successors, (71), 28 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:48:10,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:48:10,080 INFO L225 Difference]: With dead ends: 19251 [2021-03-10 22:48:10,080 INFO L226 Difference]: Without dead ends: 19212 [2021-03-10 22:48:10,081 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3960 ImplicationChecksByTransitivity, 2079.9ms TimeCoverageRelationStatistics Valid=2263, Invalid=8243, Unknown=0, NotChecked=0, Total=10506 [2021-03-10 22:48:10,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19212 states. [2021-03-10 22:48:10,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19212 to 17619. [2021-03-10 22:48:10,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17619 states, 17618 states have (on average 2.546032466795323) internal successors, (44856), 17618 states have internal predecessors, (44856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:10,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17619 states to 17619 states and 44856 transitions. [2021-03-10 22:48:10,394 INFO L78 Accepts]: Start accepts. Automaton has 17619 states and 44856 transitions. Word has length 40 [2021-03-10 22:48:10,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:48:10,394 INFO L480 AbstractCegarLoop]: Abstraction has 17619 states and 44856 transitions. [2021-03-10 22:48:10,394 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.4482758620689653) internal successors, (71), 28 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:10,394 INFO L276 IsEmpty]: Start isEmpty. Operand 17619 states and 44856 transitions. [2021-03-10 22:48:10,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:48:10,405 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:48:10,405 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:48:10,606 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 126 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3708 [2021-03-10 22:48:10,606 INFO L428 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:48:10,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:48:10,607 INFO L82 PathProgramCache]: Analyzing trace with hash -922867914, now seen corresponding path program 126 times [2021-03-10 22:48:10,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:48:10,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571656212] [2021-03-10 22:48:10,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:48:10,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:48:10,729 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 31 proven. 53 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:48:10,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571656212] [2021-03-10 22:48:10,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119435533] [2021-03-10 22:48:10,729 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 127 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 127 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:48:10,754 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-03-10 22:48:10,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:48:10,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:48:10,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:48:11,147 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:48:11,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:48:11,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17] total 28 [2021-03-10 22:48:11,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397503707] [2021-03-10 22:48:11,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-03-10 22:48:11,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:48:11,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-03-10 22:48:11,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=673, Unknown=0, NotChecked=0, Total=812 [2021-03-10 22:48:11,148 INFO L87 Difference]: Start difference. First operand 17619 states and 44856 transitions. Second operand has 29 states, 29 states have (on average 2.5172413793103448) internal successors, (73), 28 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:14,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:48:14,946 INFO L93 Difference]: Finished difference Result 28254 states and 69498 transitions. [2021-03-10 22:48:14,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2021-03-10 22:48:14,947 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.5172413793103448) internal successors, (73), 28 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:48:14,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:48:14,984 INFO L225 Difference]: With dead ends: 28254 [2021-03-10 22:48:14,984 INFO L226 Difference]: Without dead ends: 28254 [2021-03-10 22:48:14,985 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7942 ImplicationChecksByTransitivity, 3316.0ms TimeCoverageRelationStatistics Valid=5440, Invalid=14300, Unknown=0, NotChecked=0, Total=19740 [2021-03-10 22:48:15,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28254 states. [2021-03-10 22:48:15,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28254 to 22012. [2021-03-10 22:48:15,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22012 states, 22011 states have (on average 2.520875925673527) internal successors, (55487), 22011 states have internal predecessors, (55487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:15,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22012 states to 22012 states and 55487 transitions. [2021-03-10 22:48:15,363 INFO L78 Accepts]: Start accepts. Automaton has 22012 states and 55487 transitions. Word has length 40 [2021-03-10 22:48:15,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:48:15,363 INFO L480 AbstractCegarLoop]: Abstraction has 22012 states and 55487 transitions. [2021-03-10 22:48:15,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.5172413793103448) internal successors, (73), 28 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:15,363 INFO L276 IsEmpty]: Start isEmpty. Operand 22012 states and 55487 transitions. [2021-03-10 22:48:15,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:48:15,376 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:48:15,376 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:48:15,576 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 127 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3709 [2021-03-10 22:48:15,577 INFO L428 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:48:15,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:48:15,577 INFO L82 PathProgramCache]: Analyzing trace with hash 163167602, now seen corresponding path program 127 times [2021-03-10 22:48:15,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:48:15,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400935636] [2021-03-10 22:48:15,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:48:15,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:48:15,739 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 38 proven. 46 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:48:15,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400935636] [2021-03-10 22:48:15,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782692583] [2021-03-10 22:48:15,739 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 128 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 128 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:48:15,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:48:15,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:48:15,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:48:16,175 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 34 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:48:16,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:48:16,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 17] total 27 [2021-03-10 22:48:16,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316094091] [2021-03-10 22:48:16,176 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 22:48:16,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:48:16,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 22:48:16,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=610, Unknown=0, NotChecked=0, Total=756 [2021-03-10 22:48:16,176 INFO L87 Difference]: Start difference. First operand 22012 states and 55487 transitions. Second operand has 28 states, 28 states have (on average 2.5357142857142856) internal successors, (71), 27 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:18,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:48:18,482 INFO L93 Difference]: Finished difference Result 23071 states and 57669 transitions. [2021-03-10 22:48:18,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-03-10 22:48:18,484 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.5357142857142856) internal successors, (71), 27 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:48:18,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:48:18,510 INFO L225 Difference]: With dead ends: 23071 [2021-03-10 22:48:18,510 INFO L226 Difference]: Without dead ends: 23053 [2021-03-10 22:48:18,511 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3632 ImplicationChecksByTransitivity, 2030.3ms TimeCoverageRelationStatistics Valid=2150, Invalid=7552, Unknown=0, NotChecked=0, Total=9702 [2021-03-10 22:48:18,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23053 states. [2021-03-10 22:48:18,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23053 to 22214. [2021-03-10 22:48:18,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22214 states, 22213 states have (on average 2.5227119254490615) internal successors, (56037), 22213 states have internal predecessors, (56037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:18,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22214 states to 22214 states and 56037 transitions. [2021-03-10 22:48:18,842 INFO L78 Accepts]: Start accepts. Automaton has 22214 states and 56037 transitions. Word has length 40 [2021-03-10 22:48:18,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:48:18,842 INFO L480 AbstractCegarLoop]: Abstraction has 22214 states and 56037 transitions. [2021-03-10 22:48:18,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.5357142857142856) internal successors, (71), 27 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:18,843 INFO L276 IsEmpty]: Start isEmpty. Operand 22214 states and 56037 transitions. [2021-03-10 22:48:18,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:48:18,855 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:48:18,855 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:48:19,056 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 128 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3710 [2021-03-10 22:48:19,056 INFO L428 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:48:19,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:48:19,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1520419894, now seen corresponding path program 128 times [2021-03-10 22:48:19,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:48:19,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743684938] [2021-03-10 22:48:19,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:48:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:48:19,198 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 54 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:48:19,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743684938] [2021-03-10 22:48:19,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478656953] [2021-03-10 22:48:19,198 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 129 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 129 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:48:19,222 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 22:48:19,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:48:19,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:48:19,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:48:19,609 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:48:19,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:48:19,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 17] total 27 [2021-03-10 22:48:19,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114318673] [2021-03-10 22:48:19,610 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 22:48:19,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:48:19,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 22:48:19,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=619, Unknown=0, NotChecked=0, Total=756 [2021-03-10 22:48:19,611 INFO L87 Difference]: Start difference. First operand 22214 states and 56037 transitions. Second operand has 28 states, 28 states have (on average 2.642857142857143) internal successors, (74), 27 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:23,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:48:23,363 INFO L93 Difference]: Finished difference Result 36775 states and 91582 transitions. [2021-03-10 22:48:23,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2021-03-10 22:48:23,364 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.642857142857143) internal successors, (74), 27 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:48:23,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:48:23,418 INFO L225 Difference]: With dead ends: 36775 [2021-03-10 22:48:23,418 INFO L226 Difference]: Without dead ends: 36775 [2021-03-10 22:48:23,420 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8274 ImplicationChecksByTransitivity, 3242.9ms TimeCoverageRelationStatistics Valid=5518, Invalid=14504, Unknown=0, NotChecked=0, Total=20022 [2021-03-10 22:48:23,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36775 states. [2021-03-10 22:48:23,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36775 to 32904. [2021-03-10 22:48:23,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32904 states, 32903 states have (on average 2.529982068504392) internal successors, (83244), 32903 states have internal predecessors, (83244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:23,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32904 states to 32904 states and 83244 transitions. [2021-03-10 22:48:23,990 INFO L78 Accepts]: Start accepts. Automaton has 32904 states and 83244 transitions. Word has length 40 [2021-03-10 22:48:23,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:48:23,990 INFO L480 AbstractCegarLoop]: Abstraction has 32904 states and 83244 transitions. [2021-03-10 22:48:23,990 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.642857142857143) internal successors, (74), 27 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:23,990 INFO L276 IsEmpty]: Start isEmpty. Operand 32904 states and 83244 transitions. [2021-03-10 22:48:24,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:48:24,006 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:48:24,006 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:48:24,207 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 129 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3711 [2021-03-10 22:48:24,207 INFO L428 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:48:24,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:48:24,207 INFO L82 PathProgramCache]: Analyzing trace with hash -425600740, now seen corresponding path program 129 times [2021-03-10 22:48:24,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:48:24,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748140637] [2021-03-10 22:48:24,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:48:24,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:48:24,304 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 43 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:48:24,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748140637] [2021-03-10 22:48:24,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321683990] [2021-03-10 22:48:24,304 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 130 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 130 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:48:24,328 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-03-10 22:48:24,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:48:24,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:48:24,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:48:24,703 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 38 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:48:24,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:48:24,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 17] total 26 [2021-03-10 22:48:24,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515028697] [2021-03-10 22:48:24,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-03-10 22:48:24,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:48:24,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-03-10 22:48:24,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=567, Unknown=0, NotChecked=0, Total=702 [2021-03-10 22:48:24,704 INFO L87 Difference]: Start difference. First operand 32904 states and 83244 transitions. Second operand has 27 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 26 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:27,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:48:27,003 INFO L93 Difference]: Finished difference Result 35887 states and 89458 transitions. [2021-03-10 22:48:27,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-03-10 22:48:27,004 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 26 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:48:27,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:48:27,053 INFO L225 Difference]: With dead ends: 35887 [2021-03-10 22:48:27,054 INFO L226 Difference]: Without dead ends: 35883 [2021-03-10 22:48:27,054 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3426 ImplicationChecksByTransitivity, 1950.0ms TimeCoverageRelationStatistics Valid=2678, Invalid=7024, Unknown=0, NotChecked=0, Total=9702 [2021-03-10 22:48:27,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35883 states. [2021-03-10 22:48:27,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35883 to 32269. [2021-03-10 22:48:27,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32269 states, 32268 states have (on average 2.526465848518656) internal successors, (81524), 32268 states have internal predecessors, (81524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:27,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32269 states to 32269 states and 81524 transitions. [2021-03-10 22:48:27,790 INFO L78 Accepts]: Start accepts. Automaton has 32269 states and 81524 transitions. Word has length 40 [2021-03-10 22:48:27,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:48:27,790 INFO L480 AbstractCegarLoop]: Abstraction has 32269 states and 81524 transitions. [2021-03-10 22:48:27,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 26 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:27,791 INFO L276 IsEmpty]: Start isEmpty. Operand 32269 states and 81524 transitions. [2021-03-10 22:48:27,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:48:27,804 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:48:27,805 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:48:28,005 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3712,130 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:48:28,005 INFO L428 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:48:28,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:48:28,005 INFO L82 PathProgramCache]: Analyzing trace with hash -931947006, now seen corresponding path program 130 times [2021-03-10 22:48:28,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:48:28,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309448795] [2021-03-10 22:48:28,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:48:28,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:48:28,121 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 37 proven. 47 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:48:28,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309448795] [2021-03-10 22:48:28,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132161317] [2021-03-10 22:48:28,121 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 131 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 131 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:48:28,143 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 22:48:28,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:48:28,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:48:28,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:48:28,527 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 33 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:48:28,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:48:28,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 17] total 27 [2021-03-10 22:48:28,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379524244] [2021-03-10 22:48:28,527 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 22:48:28,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:48:28,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 22:48:28,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2021-03-10 22:48:28,528 INFO L87 Difference]: Start difference. First operand 32269 states and 81524 transitions. Second operand has 28 states, 28 states have (on average 2.5) internal successors, (70), 27 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:30,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:48:30,784 INFO L93 Difference]: Finished difference Result 36401 states and 90806 transitions. [2021-03-10 22:48:30,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-03-10 22:48:30,788 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.5) internal successors, (70), 27 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:48:30,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:48:30,838 INFO L225 Difference]: With dead ends: 36401 [2021-03-10 22:48:30,838 INFO L226 Difference]: Without dead ends: 36389 [2021-03-10 22:48:30,839 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3240 ImplicationChecksByTransitivity, 1907.9ms TimeCoverageRelationStatistics Valid=2417, Invalid=6895, Unknown=0, NotChecked=0, Total=9312 [2021-03-10 22:48:30,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36389 states. [2021-03-10 22:48:31,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36389 to 31831. [2021-03-10 22:48:31,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31831 states, 31830 states have (on average 2.527615457115928) internal successors, (80454), 31830 states have internal predecessors, (80454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:31,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31831 states to 31831 states and 80454 transitions. [2021-03-10 22:48:31,382 INFO L78 Accepts]: Start accepts. Automaton has 31831 states and 80454 transitions. Word has length 40 [2021-03-10 22:48:31,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:48:31,382 INFO L480 AbstractCegarLoop]: Abstraction has 31831 states and 80454 transitions. [2021-03-10 22:48:31,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.5) internal successors, (70), 27 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:31,383 INFO L276 IsEmpty]: Start isEmpty. Operand 31831 states and 80454 transitions. [2021-03-10 22:48:31,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:48:31,400 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:48:31,400 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:48:31,601 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3713,131 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:48:31,602 INFO L428 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:48:31,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:48:31,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1159168386, now seen corresponding path program 131 times [2021-03-10 22:48:31,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:48:31,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022965372] [2021-03-10 22:48:31,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:48:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:48:31,732 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 54 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:48:31,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022965372] [2021-03-10 22:48:31,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302561045] [2021-03-10 22:48:31,732 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 132 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 132 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:48:31,756 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-03-10 22:48:31,756 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:48:31,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:48:31,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:48:32,161 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 27 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:48:32,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:48:32,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17] total 28 [2021-03-10 22:48:32,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798892425] [2021-03-10 22:48:32,161 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-03-10 22:48:32,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:48:32,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-03-10 22:48:32,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=674, Unknown=0, NotChecked=0, Total=812 [2021-03-10 22:48:32,162 INFO L87 Difference]: Start difference. First operand 31831 states and 80454 transitions. Second operand has 29 states, 29 states have (on average 2.413793103448276) internal successors, (70), 28 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:34,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:48:34,512 INFO L93 Difference]: Finished difference Result 37561 states and 93690 transitions. [2021-03-10 22:48:34,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-03-10 22:48:34,513 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.413793103448276) internal successors, (70), 28 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:48:34,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:48:34,567 INFO L225 Difference]: With dead ends: 37561 [2021-03-10 22:48:34,567 INFO L226 Difference]: Without dead ends: 37541 [2021-03-10 22:48:34,569 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3190 ImplicationChecksByTransitivity, 1991.3ms TimeCoverageRelationStatistics Valid=2289, Invalid=7023, Unknown=0, NotChecked=0, Total=9312 [2021-03-10 22:48:34,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37541 states. [2021-03-10 22:48:35,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37541 to 32042. [2021-03-10 22:48:35,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32042 states, 32041 states have (on average 2.529758746605911) internal successors, (81056), 32041 states have internal predecessors, (81056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:35,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32042 states to 32042 states and 81056 transitions. [2021-03-10 22:48:35,202 INFO L78 Accepts]: Start accepts. Automaton has 32042 states and 81056 transitions. Word has length 40 [2021-03-10 22:48:35,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:48:35,202 INFO L480 AbstractCegarLoop]: Abstraction has 32042 states and 81056 transitions. [2021-03-10 22:48:35,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.413793103448276) internal successors, (70), 28 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:35,203 INFO L276 IsEmpty]: Start isEmpty. Operand 32042 states and 81056 transitions. [2021-03-10 22:48:35,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:48:35,219 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:48:35,219 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:48:35,419 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3714,132 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:48:35,419 INFO L428 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:48:35,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:48:35,420 INFO L82 PathProgramCache]: Analyzing trace with hash -475582470, now seen corresponding path program 132 times [2021-03-10 22:48:35,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:48:35,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681787111] [2021-03-10 22:48:35,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:48:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:48:35,552 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 27 proven. 57 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:48:35,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681787111] [2021-03-10 22:48:35,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442504632] [2021-03-10 22:48:35,552 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 133 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 133 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:48:35,578 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-03-10 22:48:35,578 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:48:35,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:48:35,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:48:36,005 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 25 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:48:36,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:48:36,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17] total 29 [2021-03-10 22:48:36,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067305552] [2021-03-10 22:48:36,005 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-03-10 22:48:36,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:48:36,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-03-10 22:48:36,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=724, Unknown=0, NotChecked=0, Total=870 [2021-03-10 22:48:36,006 INFO L87 Difference]: Start difference. First operand 32042 states and 81056 transitions. Second operand has 30 states, 30 states have (on average 2.3333333333333335) internal successors, (70), 29 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:38,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:48:38,553 INFO L93 Difference]: Finished difference Result 39838 states and 99403 transitions. [2021-03-10 22:48:38,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-03-10 22:48:38,554 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.3333333333333335) internal successors, (70), 29 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:48:38,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:48:38,614 INFO L225 Difference]: With dead ends: 39838 [2021-03-10 22:48:38,614 INFO L226 Difference]: Without dead ends: 39810 [2021-03-10 22:48:38,615 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3289 ImplicationChecksByTransitivity, 2129.7ms TimeCoverageRelationStatistics Valid=2297, Invalid=7405, Unknown=0, NotChecked=0, Total=9702 [2021-03-10 22:48:38,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39810 states. [2021-03-10 22:48:39,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39810 to 33837. [2021-03-10 22:48:39,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33837 states, 33836 states have (on average 2.535997162785199) internal successors, (85808), 33836 states have internal predecessors, (85808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:39,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33837 states to 33837 states and 85808 transitions. [2021-03-10 22:48:39,243 INFO L78 Accepts]: Start accepts. Automaton has 33837 states and 85808 transitions. Word has length 40 [2021-03-10 22:48:39,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:48:39,244 INFO L480 AbstractCegarLoop]: Abstraction has 33837 states and 85808 transitions. [2021-03-10 22:48:39,244 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.3333333333333335) internal successors, (70), 29 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:39,244 INFO L276 IsEmpty]: Start isEmpty. Operand 33837 states and 85808 transitions. [2021-03-10 22:48:39,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:48:39,263 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:48:39,263 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:48:39,463 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 133 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3715 [2021-03-10 22:48:39,464 INFO L428 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:48:39,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:48:39,464 INFO L82 PathProgramCache]: Analyzing trace with hash -679513482, now seen corresponding path program 133 times [2021-03-10 22:48:39,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:48:39,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960396920] [2021-03-10 22:48:39,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:48:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:48:39,627 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 28 proven. 56 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:48:39,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960396920] [2021-03-10 22:48:39,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641679917] [2021-03-10 22:48:39,627 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 134 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 134 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:48:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:48:39,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:48:39,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:48:40,123 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 27 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:48:40,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:48:40,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17] total 30 [2021-03-10 22:48:40,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461725536] [2021-03-10 22:48:40,123 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-03-10 22:48:40,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:48:40,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-03-10 22:48:40,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=772, Unknown=0, NotChecked=0, Total=930 [2021-03-10 22:48:40,124 INFO L87 Difference]: Start difference. First operand 33837 states and 85808 transitions. Second operand has 31 states, 31 states have (on average 2.2580645161290325) internal successors, (70), 30 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:42,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:48:42,905 INFO L93 Difference]: Finished difference Result 43908 states and 109576 transitions. [2021-03-10 22:48:42,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-03-10 22:48:42,906 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.2580645161290325) internal successors, (70), 30 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:48:42,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:48:42,974 INFO L225 Difference]: With dead ends: 43908 [2021-03-10 22:48:42,974 INFO L226 Difference]: Without dead ends: 43872 [2021-03-10 22:48:42,975 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3564 ImplicationChecksByTransitivity, 2334.3ms TimeCoverageRelationStatistics Valid=2443, Invalid=8063, Unknown=0, NotChecked=0, Total=10506 [2021-03-10 22:48:43,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43872 states. [2021-03-10 22:48:43,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43872 to 40323. [2021-03-10 22:48:43,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40323 states, 40322 states have (on average 2.537894945687218) internal successors, (102333), 40322 states have internal predecessors, (102333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:43,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40323 states to 40323 states and 102333 transitions. [2021-03-10 22:48:43,667 INFO L78 Accepts]: Start accepts. Automaton has 40323 states and 102333 transitions. Word has length 40 [2021-03-10 22:48:43,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:48:43,667 INFO L480 AbstractCegarLoop]: Abstraction has 40323 states and 102333 transitions. [2021-03-10 22:48:43,667 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 2.2580645161290325) internal successors, (70), 30 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:43,667 INFO L276 IsEmpty]: Start isEmpty. Operand 40323 states and 102333 transitions. [2021-03-10 22:48:43,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:48:43,687 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:48:43,687 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:48:43,887 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 134 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3716 [2021-03-10 22:48:43,888 INFO L428 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:48:43,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:48:43,888 INFO L82 PathProgramCache]: Analyzing trace with hash 911279602, now seen corresponding path program 134 times [2021-03-10 22:48:43,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:48:43,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339137689] [2021-03-10 22:48:43,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:48:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:48:44,046 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 33 proven. 51 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:48:44,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339137689] [2021-03-10 22:48:44,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599586336] [2021-03-10 22:48:44,047 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 135 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 135 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:48:44,068 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 22:48:44,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:48:44,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:48:44,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:48:44,543 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 33 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:48:44,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:48:44,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 31 [2021-03-10 22:48:44,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443439413] [2021-03-10 22:48:44,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-03-10 22:48:44,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:48:44,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-03-10 22:48:44,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=818, Unknown=0, NotChecked=0, Total=992 [2021-03-10 22:48:44,544 INFO L87 Difference]: Start difference. First operand 40323 states and 102333 transitions. Second operand has 32 states, 32 states have (on average 2.1875) internal successors, (70), 31 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:47,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:48:47,505 INFO L93 Difference]: Finished difference Result 50681 states and 126374 transitions. [2021-03-10 22:48:47,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-03-10 22:48:47,506 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.1875) internal successors, (70), 31 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:48:47,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:48:47,592 INFO L225 Difference]: With dead ends: 50681 [2021-03-10 22:48:47,592 INFO L226 Difference]: Without dead ends: 50637 [2021-03-10 22:48:47,593 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4059 ImplicationChecksByTransitivity, 2563.9ms TimeCoverageRelationStatistics Valid=2727, Invalid=9045, Unknown=0, NotChecked=0, Total=11772 [2021-03-10 22:48:47,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50637 states. [2021-03-10 22:48:48,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50637 to 46817. [2021-03-10 22:48:48,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46817 states, 46816 states have (on average 2.533685064935065) internal successors, (118617), 46816 states have internal predecessors, (118617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:48,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46817 states to 46817 states and 118617 transitions. [2021-03-10 22:48:48,529 INFO L78 Accepts]: Start accepts. Automaton has 46817 states and 118617 transitions. Word has length 40 [2021-03-10 22:48:48,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:48:48,529 INFO L480 AbstractCegarLoop]: Abstraction has 46817 states and 118617 transitions. [2021-03-10 22:48:48,529 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 2.1875) internal successors, (70), 31 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:48,529 INFO L276 IsEmpty]: Start isEmpty. Operand 46817 states and 118617 transitions. [2021-03-10 22:48:48,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 22:48:48,555 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:48:48,555 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:48:48,755 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3717,135 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:48:48,756 INFO L428 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:48:48,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:48:48,756 INFO L82 PathProgramCache]: Analyzing trace with hash 655075950, now seen corresponding path program 135 times [2021-03-10 22:48:48,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:48:48,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859317531] [2021-03-10 22:48:48,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:48:48,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:48:48,956 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 43 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:48:48,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859317531] [2021-03-10 22:48:48,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925951583] [2021-03-10 22:48:48,956 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 136 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 136 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:48:48,987 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-03-10 22:48:48,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:48:48,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 22:48:48,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:48:49,489 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 43 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:48:49,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:48:49,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-03-10 22:48:49,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134992675] [2021-03-10 22:48:49,490 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-03-10 22:48:49,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:48:49,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-03-10 22:48:49,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=862, Unknown=0, NotChecked=0, Total=1056 [2021-03-10 22:48:49,490 INFO L87 Difference]: Start difference. First operand 46817 states and 118617 transitions. Second operand has 33 states, 33 states have (on average 2.121212121212121) internal successors, (70), 32 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:52,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:48:52,695 INFO L93 Difference]: Finished difference Result 50538 states and 126417 transitions. [2021-03-10 22:48:52,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-03-10 22:48:52,697 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.121212121212121) internal successors, (70), 32 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 22:48:52,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:48:52,794 INFO L225 Difference]: With dead ends: 50538 [2021-03-10 22:48:52,794 INFO L226 Difference]: Without dead ends: 50486 [2021-03-10 22:48:52,795 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4831 ImplicationChecksByTransitivity, 2896.2ms TimeCoverageRelationStatistics Valid=3147, Invalid=10425, Unknown=0, NotChecked=0, Total=13572 [2021-03-10 22:48:52,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50486 states. [2021-03-10 22:48:53,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50486 to 46981. [2021-03-10 22:48:53,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46981 states, 46980 states have (on average 2.5367177522349937) internal successors, (119175), 46980 states have internal predecessors, (119175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:53,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46981 states to 46981 states and 119175 transitions. [2021-03-10 22:48:53,695 INFO L78 Accepts]: Start accepts. Automaton has 46981 states and 119175 transitions. Word has length 40 [2021-03-10 22:48:53,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:48:53,695 INFO L480 AbstractCegarLoop]: Abstraction has 46981 states and 119175 transitions. [2021-03-10 22:48:53,695 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.121212121212121) internal successors, (70), 32 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:48:53,695 INFO L276 IsEmpty]: Start isEmpty. Operand 46981 states and 119175 transitions. [2021-03-10 22:48:53,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-03-10 22:48:53,728 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:48:53,728 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:48:53,929 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 136 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3718 [2021-03-10 22:48:53,929 INFO L428 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:48:53,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:48:53,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1401589900, now seen corresponding path program 136 times [2021-03-10 22:48:53,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:48:53,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647453565] [2021-03-10 22:48:53,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:48:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:48:54,008 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:48:54,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647453565] [2021-03-10 22:48:54,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329246082] [2021-03-10 22:48:54,008 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 137 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 137 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:48:54,036 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 22:48:54,036 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:48:54,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 45 conjunts are in the unsatisfiable core [2021-03-10 22:48:54,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:48:54,385 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-03-10 22:48:54,385 INFO L354 Elim1Store]: treesize reduction 72, result has 57.4 percent of original size [2021-03-10 22:48:54,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 151 treesize of output 153 [2021-03-10 22:48:54,389 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:48:54,463 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:48:54,465 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:48:54,465 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:151, output treesize:422 [2021-03-10 22:48:54,778 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 54 [2021-03-10 22:48:57,011 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2021-03-10 22:48:58,220 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 621 DAG size of output: 621 [2021-03-10 22:48:59,903 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1196 [2021-03-10 22:49:01,033 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1196 [2021-03-10 22:49:02,690 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1196 [2021-03-10 22:49:20,707 WARN L205 SmtUtils]: Spent 12.28 s on a formula simplification. DAG size of input: 1196 DAG size of output: 58 [2021-03-10 22:49:22,550 INFO L354 Elim1Store]: treesize reduction 153, result has 9.5 percent of original size [2021-03-10 22:49:22,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 223 treesize of output 86 [2021-03-10 22:49:22,553 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:22,840 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 111 [2021-03-10 22:49:22,841 INFO L628 ElimStorePlain]: treesize reduction 863, result has 37.2 percent of original size [2021-03-10 22:49:22,909 INFO L354 Elim1Store]: treesize reduction 151, result has 10.7 percent of original size [2021-03-10 22:49:22,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 85 treesize of output 52 [2021-03-10 22:49:22,912 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:22,998 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:49:23,175 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 50 [2021-03-10 22:49:23,175 INFO L354 Elim1Store]: treesize reduction 84, result has 50.3 percent of original size [2021-03-10 22:49:23,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 101 treesize of output 133 [2021-03-10 22:49:23,182 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:23,203 INFO L628 ElimStorePlain]: treesize reduction 334, result has 0.9 percent of original size [2021-03-10 22:49:23,204 INFO L518 ElimStorePlain]: Eliminatee v_prenex_133 vanished before elimination [2021-03-10 22:49:23,204 INFO L518 ElimStorePlain]: Eliminatee v_prenex_134 vanished before elimination [2021-03-10 22:49:23,204 INFO L518 ElimStorePlain]: Eliminatee v_prenex_135 vanished before elimination [2021-03-10 22:49:23,204 INFO L518 ElimStorePlain]: Eliminatee v_prenex_136 vanished before elimination [2021-03-10 22:49:23,205 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 7 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:49:23,205 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 14 variables, input treesize:1590, output treesize:3 [2021-03-10 22:49:23,214 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:49:23,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:49:23,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16] total 23 [2021-03-10 22:49:23,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306703782] [2021-03-10 22:49:23,214 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-10 22:49:23,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:49:23,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-10 22:49:23,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=450, Unknown=1, NotChecked=0, Total=506 [2021-03-10 22:49:23,215 INFO L87 Difference]: Start difference. First operand 46981 states and 119175 transitions. Second operand has 23 states, 23 states have (on average 3.130434782608696) internal successors, (72), 23 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:49:25,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:49:25,300 INFO L93 Difference]: Finished difference Result 50920 states and 128844 transitions. [2021-03-10 22:49:25,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-03-10 22:49:25,301 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.130434782608696) internal successors, (72), 23 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-03-10 22:49:25,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:49:25,389 INFO L225 Difference]: With dead ends: 50920 [2021-03-10 22:49:25,389 INFO L226 Difference]: Without dead ends: 50913 [2021-03-10 22:49:25,389 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 19446.2ms TimeCoverageRelationStatistics Valid=55, Invalid=450, Unknown=1, NotChecked=0, Total=506 [2021-03-10 22:49:25,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50913 states. [2021-03-10 22:49:26,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50913 to 49976. [2021-03-10 22:49:26,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49976 states, 49975 states have (on average 2.542091045522761) internal successors, (127041), 49975 states have internal predecessors, (127041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:49:26,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49976 states to 49976 states and 127041 transitions. [2021-03-10 22:49:26,535 INFO L78 Accepts]: Start accepts. Automaton has 49976 states and 127041 transitions. Word has length 42 [2021-03-10 22:49:26,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:49:26,535 INFO L480 AbstractCegarLoop]: Abstraction has 49976 states and 127041 transitions. [2021-03-10 22:49:26,535 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.130434782608696) internal successors, (72), 23 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:49:26,535 INFO L276 IsEmpty]: Start isEmpty. Operand 49976 states and 127041 transitions. [2021-03-10 22:49:26,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-03-10 22:49:26,565 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:49:26,565 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:49:26,766 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 137 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3719 [2021-03-10 22:49:26,766 INFO L428 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:49:26,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:49:26,767 INFO L82 PathProgramCache]: Analyzing trace with hash 631984244, now seen corresponding path program 137 times [2021-03-10 22:49:26,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:49:26,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144149554] [2021-03-10 22:49:26,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:49:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:49:26,852 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:49:26,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144149554] [2021-03-10 22:49:26,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111910140] [2021-03-10 22:49:26,853 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 138 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 138 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:49:26,878 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-03-10 22:49:26,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:49:26,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 51 conjunts are in the unsatisfiable core [2021-03-10 22:49:26,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:49:27,829 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 79 [2021-03-10 22:49:27,830 INFO L354 Elim1Store]: treesize reduction 751, result has 24.2 percent of original size [2021-03-10 22:49:27,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 18 new quantified variables, introduced 66 case distinctions, treesize of input 187 treesize of output 314 [2021-03-10 22:49:27,835 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:27,930 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:49:27,931 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:49:27,932 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:187, output treesize:404 [2021-03-10 22:49:29,663 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2021-03-10 22:49:29,886 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:29,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 215 treesize of output 62 [2021-03-10 22:49:29,890 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:29,978 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:29,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 234 treesize of output 61 [2021-03-10 22:49:29,980 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:30,078 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:30,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 210 treesize of output 57 [2021-03-10 22:49:30,080 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:30,170 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:30,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 58 [2021-03-10 22:49:30,172 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:30,265 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:30,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 178 treesize of output 1 [2021-03-10 22:49:30,267 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:30,358 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:30,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-03-10 22:49:30,361 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:30,450 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:30,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 54 [2021-03-10 22:49:30,452 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:30,548 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:30,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 1 [2021-03-10 22:49:30,550 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:30,641 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:30,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 227 treesize of output 62 [2021-03-10 22:49:30,643 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:30,735 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:30,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 222 treesize of output 61 [2021-03-10 22:49:30,737 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:30,834 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:30,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-03-10 22:49:30,838 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:31,068 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:31,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 56 [2021-03-10 22:49:31,071 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:31,164 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:31,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 224 treesize of output 63 [2021-03-10 22:49:31,166 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:31,265 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:31,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 1 [2021-03-10 22:49:31,267 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:31,381 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:49:31,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 206 treesize of output 65 [2021-03-10 22:49:31,384 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:31,480 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:31,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 209 treesize of output 60 [2021-03-10 22:49:31,482 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:31,573 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:31,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 186 treesize of output 55 [2021-03-10 22:49:31,576 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:31,661 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:31,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 218 treesize of output 63 [2021-03-10 22:49:31,663 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:31,750 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:31,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 57 [2021-03-10 22:49:31,752 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:31,840 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:31,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 56 [2021-03-10 22:49:31,842 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:31,931 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:31,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 232 treesize of output 63 [2021-03-10 22:49:31,933 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:32,023 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:32,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 213 treesize of output 58 [2021-03-10 22:49:32,025 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:32,124 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:32,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 213 treesize of output 1 [2021-03-10 22:49:32,125 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:32,256 INFO L354 Elim1Store]: treesize reduction 113, result has 6.6 percent of original size [2021-03-10 22:49:32,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 210 treesize of output 68 [2021-03-10 22:49:32,258 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:32,359 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:32,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-03-10 22:49:32,361 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:32,453 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:32,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 62 [2021-03-10 22:49:32,456 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:32,548 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:32,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-03-10 22:49:32,550 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:32,644 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:32,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 210 treesize of output 61 [2021-03-10 22:49:32,646 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:32,752 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:32,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 211 treesize of output 62 [2021-03-10 22:49:32,754 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:32,854 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:32,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 232 treesize of output 63 [2021-03-10 22:49:32,856 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:32,952 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:32,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-03-10 22:49:32,955 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:33,050 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:33,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:49:33,052 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:33,157 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:33,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 215 treesize of output 58 [2021-03-10 22:49:33,159 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:33,267 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:33,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-03-10 22:49:33,269 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:33,368 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:33,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 214 treesize of output 61 [2021-03-10 22:49:33,371 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:33,469 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:33,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 230 treesize of output 65 [2021-03-10 22:49:33,472 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:33,571 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:33,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 57 [2021-03-10 22:49:33,573 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:33,676 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:33,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 210 treesize of output 61 [2021-03-10 22:49:33,679 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:33,787 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:33,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 214 treesize of output 61 [2021-03-10 22:49:33,789 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:33,894 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:33,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-03-10 22:49:33,896 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:34,007 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:34,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 215 treesize of output 58 [2021-03-10 22:49:34,010 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:34,119 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:34,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 211 treesize of output 62 [2021-03-10 22:49:34,122 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:34,229 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:34,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-03-10 22:49:34,232 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:34,335 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:34,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 213 treesize of output 58 [2021-03-10 22:49:34,337 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:34,439 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:34,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 213 treesize of output 62 [2021-03-10 22:49:34,442 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:34,544 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:34,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-03-10 22:49:34,547 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:34,663 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:34,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 217 treesize of output 60 [2021-03-10 22:49:34,665 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:34,768 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:34,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 56 [2021-03-10 22:49:34,771 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:34,875 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:34,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-03-10 22:49:34,877 INFO L550 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:34,982 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:34,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 214 treesize of output 61 [2021-03-10 22:49:34,984 INFO L550 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:35,091 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:35,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-03-10 22:49:35,094 INFO L550 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:35,202 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:35,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 60 [2021-03-10 22:49:35,204 INFO L550 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:35,310 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:35,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 222 treesize of output 61 [2021-03-10 22:49:35,312 INFO L550 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:35,463 INFO L244 Elim1Store]: Index analysis took 102 ms [2021-03-10 22:49:35,475 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:35,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 228 treesize of output 65 [2021-03-10 22:49:35,478 INFO L550 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:35,555 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:35,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 222 treesize of output 61 [2021-03-10 22:49:35,557 INFO L550 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:35,633 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:35,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 214 treesize of output 61 [2021-03-10 22:49:35,636 INFO L550 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:35,714 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:35,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 227 treesize of output 62 [2021-03-10 22:49:35,716 INFO L550 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:35,796 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:35,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-03-10 22:49:35,798 INFO L550 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:35,877 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:35,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-03-10 22:49:35,880 INFO L550 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:35,974 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:35,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 213 treesize of output 60 [2021-03-10 22:49:35,986 INFO L550 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:36,071 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:36,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 211 treesize of output 60 [2021-03-10 22:49:36,074 INFO L550 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:36,155 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:36,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 60 [2021-03-10 22:49:36,157 INFO L550 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:36,244 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:36,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:49:36,247 INFO L550 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:36,336 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:36,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-03-10 22:49:36,338 INFO L550 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:36,429 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:36,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:49:36,431 INFO L550 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:36,522 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:36,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-03-10 22:49:36,524 INFO L550 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:36,615 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:36,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-03-10 22:49:36,617 INFO L550 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:36,714 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:36,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 60 [2021-03-10 22:49:36,716 INFO L550 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:36,809 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:36,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:49:36,811 INFO L550 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:36,904 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:36,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 234 treesize of output 61 [2021-03-10 22:49:36,906 INFO L550 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:36,997 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:36,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 224 treesize of output 63 [2021-03-10 22:49:36,999 INFO L550 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:37,089 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:37,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 55 [2021-03-10 22:49:37,091 INFO L550 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:37,181 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:37,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 204 treesize of output 59 [2021-03-10 22:49:37,183 INFO L550 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:37,272 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:37,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-03-10 22:49:37,274 INFO L550 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:37,364 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:37,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 60 [2021-03-10 22:49:37,366 INFO L550 ElimStorePlain]: Start of recursive call 76: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:37,456 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:37,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 210 treesize of output 61 [2021-03-10 22:49:37,458 INFO L550 ElimStorePlain]: Start of recursive call 77: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:37,549 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:37,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 214 treesize of output 57 [2021-03-10 22:49:37,551 INFO L550 ElimStorePlain]: Start of recursive call 78: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:37,663 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:49:37,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 211 treesize of output 66 [2021-03-10 22:49:37,666 INFO L550 ElimStorePlain]: Start of recursive call 79: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:37,757 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:37,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 206 treesize of output 59 [2021-03-10 22:49:37,759 INFO L550 ElimStorePlain]: Start of recursive call 80: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:37,852 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:37,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-03-10 22:49:37,854 INFO L550 ElimStorePlain]: Start of recursive call 81: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:37,947 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:37,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-03-10 22:49:37,949 INFO L550 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:38,041 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:38,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 214 treesize of output 61 [2021-03-10 22:49:38,043 INFO L550 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:38,136 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:38,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 62 [2021-03-10 22:49:38,138 INFO L550 ElimStorePlain]: Start of recursive call 84: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:38,232 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:38,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 230 treesize of output 65 [2021-03-10 22:49:38,234 INFO L550 ElimStorePlain]: Start of recursive call 85: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:38,335 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:38,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 224 treesize of output 59 [2021-03-10 22:49:38,337 INFO L550 ElimStorePlain]: Start of recursive call 86: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:38,459 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:49:38,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 206 treesize of output 65 [2021-03-10 22:49:38,462 INFO L550 ElimStorePlain]: Start of recursive call 87: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:38,563 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:38,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-03-10 22:49:38,566 INFO L550 ElimStorePlain]: Start of recursive call 88: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:38,669 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:38,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 179 treesize of output 52 [2021-03-10 22:49:38,672 INFO L550 ElimStorePlain]: Start of recursive call 89: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:38,775 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:38,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 234 treesize of output 65 [2021-03-10 22:49:38,777 INFO L550 ElimStorePlain]: Start of recursive call 90: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:38,882 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:38,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 60 [2021-03-10 22:49:38,884 INFO L550 ElimStorePlain]: Start of recursive call 91: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:38,989 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:38,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 56 [2021-03-10 22:49:38,992 INFO L550 ElimStorePlain]: Start of recursive call 92: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:39,099 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:39,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 211 treesize of output 62 [2021-03-10 22:49:39,101 INFO L550 ElimStorePlain]: Start of recursive call 93: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:39,205 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:39,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 218 treesize of output 61 [2021-03-10 22:49:39,207 INFO L550 ElimStorePlain]: Start of recursive call 94: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:39,311 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:39,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 223 treesize of output 64 [2021-03-10 22:49:39,313 INFO L550 ElimStorePlain]: Start of recursive call 95: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:39,420 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:39,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 217 treesize of output 60 [2021-03-10 22:49:39,423 INFO L550 ElimStorePlain]: Start of recursive call 96: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:39,529 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:39,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 212 treesize of output 59 [2021-03-10 22:49:39,531 INFO L550 ElimStorePlain]: Start of recursive call 97: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:39,633 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:39,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 224 treesize of output 63 [2021-03-10 22:49:39,636 INFO L550 ElimStorePlain]: Start of recursive call 98: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:39,741 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:39,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 211 treesize of output 60 [2021-03-10 22:49:39,744 INFO L550 ElimStorePlain]: Start of recursive call 99: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:39,848 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:39,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 227 treesize of output 62 [2021-03-10 22:49:39,850 INFO L550 ElimStorePlain]: Start of recursive call 100: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:39,974 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:49:39,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 216 treesize of output 67 [2021-03-10 22:49:39,977 INFO L550 ElimStorePlain]: Start of recursive call 101: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:40,082 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:40,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 206 treesize of output 61 [2021-03-10 22:49:40,085 INFO L550 ElimStorePlain]: Start of recursive call 102: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:40,192 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:40,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 224 treesize of output 59 [2021-03-10 22:49:40,195 INFO L550 ElimStorePlain]: Start of recursive call 103: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:40,298 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:40,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 214 treesize of output 61 [2021-03-10 22:49:40,301 INFO L550 ElimStorePlain]: Start of recursive call 104: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:40,450 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:40,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 227 treesize of output 62 [2021-03-10 22:49:40,452 INFO L550 ElimStorePlain]: Start of recursive call 105: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:40,528 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:40,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 60 [2021-03-10 22:49:40,530 INFO L550 ElimStorePlain]: Start of recursive call 106: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:40,605 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:40,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 180 treesize of output 55 [2021-03-10 22:49:40,607 INFO L550 ElimStorePlain]: Start of recursive call 107: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:40,682 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:40,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:49:40,685 INFO L550 ElimStorePlain]: Start of recursive call 108: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:40,762 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:40,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 210 treesize of output 61 [2021-03-10 22:49:40,764 INFO L550 ElimStorePlain]: Start of recursive call 109: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:40,863 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:49:40,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 226 treesize of output 69 [2021-03-10 22:49:40,867 INFO L550 ElimStorePlain]: Start of recursive call 110: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:40,945 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:40,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:49:40,947 INFO L550 ElimStorePlain]: Start of recursive call 111: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:41,028 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:41,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 179 treesize of output 52 [2021-03-10 22:49:41,031 INFO L550 ElimStorePlain]: Start of recursive call 112: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:41,113 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:41,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-03-10 22:49:41,115 INFO L550 ElimStorePlain]: Start of recursive call 113: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:41,196 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:41,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-03-10 22:49:41,198 INFO L550 ElimStorePlain]: Start of recursive call 114: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:41,278 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:41,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 201 treesize of output 58 [2021-03-10 22:49:41,281 INFO L550 ElimStorePlain]: Start of recursive call 115: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:41,365 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:41,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 206 treesize of output 59 [2021-03-10 22:49:41,368 INFO L550 ElimStorePlain]: Start of recursive call 116: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:41,449 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:41,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-03-10 22:49:41,452 INFO L550 ElimStorePlain]: Start of recursive call 117: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:41,533 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:41,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 216 treesize of output 63 [2021-03-10 22:49:41,535 INFO L550 ElimStorePlain]: Start of recursive call 118: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:41,625 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:41,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 62 [2021-03-10 22:49:41,627 INFO L550 ElimStorePlain]: Start of recursive call 119: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:41,732 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:49:41,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 211 treesize of output 66 [2021-03-10 22:49:41,734 INFO L550 ElimStorePlain]: Start of recursive call 120: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:41,816 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:41,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 55 [2021-03-10 22:49:41,818 INFO L550 ElimStorePlain]: Start of recursive call 121: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:41,904 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:41,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 215 treesize of output 62 [2021-03-10 22:49:41,906 INFO L550 ElimStorePlain]: Start of recursive call 122: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:41,993 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:41,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 221 treesize of output 64 [2021-03-10 22:49:41,995 INFO L550 ElimStorePlain]: Start of recursive call 123: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:42,081 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:42,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 196 treesize of output 57 [2021-03-10 22:49:42,083 INFO L550 ElimStorePlain]: Start of recursive call 124: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:42,169 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:42,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 60 [2021-03-10 22:49:42,172 INFO L550 ElimStorePlain]: Start of recursive call 125: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:42,265 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:42,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 199 treesize of output 58 [2021-03-10 22:49:42,268 INFO L550 ElimStorePlain]: Start of recursive call 126: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:42,356 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:42,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 221 treesize of output 64 [2021-03-10 22:49:42,359 INFO L550 ElimStorePlain]: Start of recursive call 127: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:42,447 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:42,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 55 [2021-03-10 22:49:42,449 INFO L550 ElimStorePlain]: Start of recursive call 128: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:42,538 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:42,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 225 treesize of output 64 [2021-03-10 22:49:42,541 INFO L550 ElimStorePlain]: Start of recursive call 129: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:42,631 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:42,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 57 [2021-03-10 22:49:42,633 INFO L550 ElimStorePlain]: Start of recursive call 130: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:42,724 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:42,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 224 treesize of output 63 [2021-03-10 22:49:42,726 INFO L550 ElimStorePlain]: Start of recursive call 131: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:42,816 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:42,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-03-10 22:49:42,818 INFO L550 ElimStorePlain]: Start of recursive call 132: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:42,910 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:42,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-03-10 22:49:42,912 INFO L550 ElimStorePlain]: Start of recursive call 133: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:43,003 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:43,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 174 treesize of output 51 [2021-03-10 22:49:43,006 INFO L550 ElimStorePlain]: Start of recursive call 134: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:43,095 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:43,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 242 treesize of output 65 [2021-03-10 22:49:43,098 INFO L550 ElimStorePlain]: Start of recursive call 135: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:43,190 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:43,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-03-10 22:49:43,192 INFO L550 ElimStorePlain]: Start of recursive call 136: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:43,283 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:43,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 217 treesize of output 60 [2021-03-10 22:49:43,286 INFO L550 ElimStorePlain]: Start of recursive call 137: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:43,378 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:43,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:49:43,380 INFO L550 ElimStorePlain]: Start of recursive call 138: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:43,473 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:43,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 169 treesize of output 50 [2021-03-10 22:49:43,475 INFO L550 ElimStorePlain]: Start of recursive call 139: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:43,568 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:43,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-03-10 22:49:43,570 INFO L550 ElimStorePlain]: Start of recursive call 140: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:43,664 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:43,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 229 treesize of output 64 [2021-03-10 22:49:43,666 INFO L550 ElimStorePlain]: Start of recursive call 141: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:43,762 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:43,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 169 treesize of output 50 [2021-03-10 22:49:43,764 INFO L550 ElimStorePlain]: Start of recursive call 142: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:43,858 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:43,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 217 treesize of output 60 [2021-03-10 22:49:43,861 INFO L550 ElimStorePlain]: Start of recursive call 143: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:43,956 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:43,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 224 treesize of output 63 [2021-03-10 22:49:43,958 INFO L550 ElimStorePlain]: Start of recursive call 144: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:44,054 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:44,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-03-10 22:49:44,056 INFO L550 ElimStorePlain]: Start of recursive call 145: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:44,153 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:44,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 233 treesize of output 66 [2021-03-10 22:49:44,155 INFO L550 ElimStorePlain]: Start of recursive call 146: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:44,253 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:44,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 57 [2021-03-10 22:49:44,256 INFO L550 ElimStorePlain]: Start of recursive call 147: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:44,352 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:44,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 230 treesize of output 65 [2021-03-10 22:49:44,354 INFO L550 ElimStorePlain]: Start of recursive call 148: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:44,452 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:44,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 209 treesize of output 60 [2021-03-10 22:49:44,454 INFO L550 ElimStorePlain]: Start of recursive call 149: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:44,553 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:44,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 204 treesize of output 59 [2021-03-10 22:49:44,555 INFO L550 ElimStorePlain]: Start of recursive call 150: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:44,651 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:44,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 62 [2021-03-10 22:49:44,654 INFO L550 ElimStorePlain]: Start of recursive call 151: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:44,752 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:44,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 206 treesize of output 59 [2021-03-10 22:49:44,754 INFO L550 ElimStorePlain]: Start of recursive call 152: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:44,851 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:44,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-03-10 22:49:44,854 INFO L550 ElimStorePlain]: Start of recursive call 153: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:44,953 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:44,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 214 treesize of output 61 [2021-03-10 22:49:44,955 INFO L550 ElimStorePlain]: Start of recursive call 154: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:45,052 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:45,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-03-10 22:49:45,054 INFO L550 ElimStorePlain]: Start of recursive call 155: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:45,153 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:45,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:49:45,155 INFO L550 ElimStorePlain]: Start of recursive call 156: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:45,254 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:45,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-03-10 22:49:45,256 INFO L550 ElimStorePlain]: Start of recursive call 157: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:45,357 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:45,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-03-10 22:49:45,359 INFO L550 ElimStorePlain]: Start of recursive call 158: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:45,460 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:45,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 183 treesize of output 54 [2021-03-10 22:49:45,462 INFO L550 ElimStorePlain]: Start of recursive call 159: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:45,569 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:45,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 218 treesize of output 59 [2021-03-10 22:49:45,571 INFO L550 ElimStorePlain]: Start of recursive call 160: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:45,674 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:45,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-03-10 22:49:45,677 INFO L550 ElimStorePlain]: Start of recursive call 161: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:45,779 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:45,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 234 treesize of output 61 [2021-03-10 22:49:45,782 INFO L550 ElimStorePlain]: Start of recursive call 162: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:45,882 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:45,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 209 treesize of output 60 [2021-03-10 22:49:45,884 INFO L550 ElimStorePlain]: Start of recursive call 163: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:45,984 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:45,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-03-10 22:49:45,986 INFO L550 ElimStorePlain]: Start of recursive call 164: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:46,107 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:49:46,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 216 treesize of output 67 [2021-03-10 22:49:46,110 INFO L550 ElimStorePlain]: Start of recursive call 165: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:46,251 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:46,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 201 treesize of output 58 [2021-03-10 22:49:46,254 INFO L550 ElimStorePlain]: Start of recursive call 166: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:46,322 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:46,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-03-10 22:49:46,325 INFO L550 ElimStorePlain]: Start of recursive call 167: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:46,393 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:46,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 224 treesize of output 59 [2021-03-10 22:49:46,396 INFO L550 ElimStorePlain]: Start of recursive call 168: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:46,465 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:46,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 60 [2021-03-10 22:49:46,467 INFO L550 ElimStorePlain]: Start of recursive call 169: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:46,537 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:46,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-03-10 22:49:46,539 INFO L550 ElimStorePlain]: Start of recursive call 170: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:46,610 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:46,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-03-10 22:49:46,613 INFO L550 ElimStorePlain]: Start of recursive call 171: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:46,682 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:46,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 196 treesize of output 57 [2021-03-10 22:49:46,685 INFO L550 ElimStorePlain]: Start of recursive call 172: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:46,758 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:46,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 60 [2021-03-10 22:49:46,761 INFO L550 ElimStorePlain]: Start of recursive call 173: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:46,835 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:46,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 224 treesize of output 63 [2021-03-10 22:49:46,837 INFO L550 ElimStorePlain]: Start of recursive call 174: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:46,910 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:46,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 217 treesize of output 60 [2021-03-10 22:49:46,912 INFO L550 ElimStorePlain]: Start of recursive call 175: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:46,991 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:46,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 210 treesize of output 61 [2021-03-10 22:49:46,993 INFO L550 ElimStorePlain]: Start of recursive call 176: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:47,071 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:47,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 239 treesize of output 62 [2021-03-10 22:49:47,073 INFO L550 ElimStorePlain]: Start of recursive call 177: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:47,152 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:47,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 55 [2021-03-10 22:49:47,154 INFO L550 ElimStorePlain]: Start of recursive call 178: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:47,234 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:47,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 213 treesize of output 62 [2021-03-10 22:49:47,236 INFO L550 ElimStorePlain]: Start of recursive call 179: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:47,317 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:47,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 232 treesize of output 63 [2021-03-10 22:49:47,319 INFO L550 ElimStorePlain]: Start of recursive call 180: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:47,401 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:47,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 216 treesize of output 63 [2021-03-10 22:49:47,403 INFO L550 ElimStorePlain]: Start of recursive call 181: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:47,484 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:47,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 220 treesize of output 63 [2021-03-10 22:49:47,487 INFO L550 ElimStorePlain]: Start of recursive call 182: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:47,590 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:49:47,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 211 treesize of output 66 [2021-03-10 22:49:47,593 INFO L550 ElimStorePlain]: Start of recursive call 183: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:47,675 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:47,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 60 [2021-03-10 22:49:47,678 INFO L550 ElimStorePlain]: Start of recursive call 184: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:47,759 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:47,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 62 [2021-03-10 22:49:47,761 INFO L550 ElimStorePlain]: Start of recursive call 185: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:47,841 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:47,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 56 [2021-03-10 22:49:47,844 INFO L550 ElimStorePlain]: Start of recursive call 186: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:47,925 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:47,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 209 treesize of output 60 [2021-03-10 22:49:47,928 INFO L550 ElimStorePlain]: Start of recursive call 187: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:48,007 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:48,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 225 treesize of output 64 [2021-03-10 22:49:48,009 INFO L550 ElimStorePlain]: Start of recursive call 188: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:48,088 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:48,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 222 treesize of output 61 [2021-03-10 22:49:48,090 INFO L550 ElimStorePlain]: Start of recursive call 189: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:48,170 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:48,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-03-10 22:49:48,173 INFO L550 ElimStorePlain]: Start of recursive call 190: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:48,254 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:48,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 60 [2021-03-10 22:49:48,256 INFO L550 ElimStorePlain]: Start of recursive call 191: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:48,337 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:48,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 60 [2021-03-10 22:49:48,339 INFO L550 ElimStorePlain]: Start of recursive call 192: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:48,441 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:49:48,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 216 treesize of output 67 [2021-03-10 22:49:48,443 INFO L550 ElimStorePlain]: Start of recursive call 193: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:48,526 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:48,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 244 treesize of output 63 [2021-03-10 22:49:48,528 INFO L550 ElimStorePlain]: Start of recursive call 194: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:48,611 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:48,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-03-10 22:49:48,613 INFO L550 ElimStorePlain]: Start of recursive call 195: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:48,695 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:48,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 54 [2021-03-10 22:49:48,697 INFO L550 ElimStorePlain]: Start of recursive call 196: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:48,782 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:48,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 189 treesize of output 54 [2021-03-10 22:49:48,784 INFO L550 ElimStorePlain]: Start of recursive call 197: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:48,868 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:48,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 210 treesize of output 57 [2021-03-10 22:49:48,871 INFO L550 ElimStorePlain]: Start of recursive call 198: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:48,955 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:48,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 184 treesize of output 53 [2021-03-10 22:49:48,957 INFO L550 ElimStorePlain]: Start of recursive call 199: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:49,042 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:49,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 57 [2021-03-10 22:49:49,045 INFO L550 ElimStorePlain]: Start of recursive call 200: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:49,130 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:49,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 214 treesize of output 61 [2021-03-10 22:49:49,133 INFO L550 ElimStorePlain]: Start of recursive call 201: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:49,218 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:49,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-03-10 22:49:49,220 INFO L550 ElimStorePlain]: Start of recursive call 202: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:49,305 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:49,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 201 treesize of output 58 [2021-03-10 22:49:49,307 INFO L550 ElimStorePlain]: Start of recursive call 203: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:49,395 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:49,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 228 treesize of output 65 [2021-03-10 22:49:49,397 INFO L550 ElimStorePlain]: Start of recursive call 204: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:49,484 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:49,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 62 [2021-03-10 22:49:49,486 INFO L550 ElimStorePlain]: Start of recursive call 205: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:49,573 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:49,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-03-10 22:49:49,575 INFO L550 ElimStorePlain]: Start of recursive call 206: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:49,662 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:49,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 213 treesize of output 60 [2021-03-10 22:49:49,665 INFO L550 ElimStorePlain]: Start of recursive call 207: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:49,752 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:49,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 225 treesize of output 64 [2021-03-10 22:49:49,755 INFO L550 ElimStorePlain]: Start of recursive call 208: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:49,844 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:49,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 189 treesize of output 54 [2021-03-10 22:49:49,846 INFO L550 ElimStorePlain]: Start of recursive call 209: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:49,935 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:49,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 237 treesize of output 64 [2021-03-10 22:49:49,937 INFO L550 ElimStorePlain]: Start of recursive call 210: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:50,024 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:50,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-03-10 22:49:50,026 INFO L550 ElimStorePlain]: Start of recursive call 211: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:50,113 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:50,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 232 treesize of output 63 [2021-03-10 22:49:50,115 INFO L550 ElimStorePlain]: Start of recursive call 212: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:50,202 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:50,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-03-10 22:49:50,204 INFO L550 ElimStorePlain]: Start of recursive call 213: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:50,291 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:50,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 210 treesize of output 57 [2021-03-10 22:49:50,294 INFO L550 ElimStorePlain]: Start of recursive call 214: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:50,381 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:50,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:49:50,383 INFO L550 ElimStorePlain]: Start of recursive call 215: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:50,471 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:50,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 213 treesize of output 60 [2021-03-10 22:49:50,473 INFO L550 ElimStorePlain]: Start of recursive call 216: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:50,562 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:50,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:49:50,564 INFO L550 ElimStorePlain]: Start of recursive call 217: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:50,653 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:50,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 169 treesize of output 50 [2021-03-10 22:49:50,655 INFO L550 ElimStorePlain]: Start of recursive call 218: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:50,744 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:50,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-03-10 22:49:50,746 INFO L550 ElimStorePlain]: Start of recursive call 219: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:50,835 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:50,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 183 treesize of output 54 [2021-03-10 22:49:50,837 INFO L550 ElimStorePlain]: Start of recursive call 220: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:50,926 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:50,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 232 treesize of output 63 [2021-03-10 22:49:50,929 INFO L550 ElimStorePlain]: Start of recursive call 221: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:51,022 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:51,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 185 treesize of output 56 [2021-03-10 22:49:51,024 INFO L550 ElimStorePlain]: Start of recursive call 222: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:51,115 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:51,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 221 treesize of output 64 [2021-03-10 22:49:51,117 INFO L550 ElimStorePlain]: Start of recursive call 223: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:51,207 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:51,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 174 treesize of output 51 [2021-03-10 22:49:51,209 INFO L550 ElimStorePlain]: Start of recursive call 224: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:51,317 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:49:51,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 206 treesize of output 65 [2021-03-10 22:49:51,320 INFO L550 ElimStorePlain]: Start of recursive call 225: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:51,410 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:51,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 222 treesize of output 61 [2021-03-10 22:49:51,413 INFO L550 ElimStorePlain]: Start of recursive call 226: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:51,504 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:51,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 222 treesize of output 61 [2021-03-10 22:49:51,506 INFO L550 ElimStorePlain]: Start of recursive call 227: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:51,601 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:51,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 223 treesize of output 64 [2021-03-10 22:49:51,603 INFO L550 ElimStorePlain]: Start of recursive call 228: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:51,700 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:51,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 220 treesize of output 63 [2021-03-10 22:49:51,702 INFO L550 ElimStorePlain]: Start of recursive call 229: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:51,802 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:51,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 231 treesize of output 66 [2021-03-10 22:49:51,805 INFO L550 ElimStorePlain]: Start of recursive call 230: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:51,903 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:51,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-03-10 22:49:51,906 INFO L550 ElimStorePlain]: Start of recursive call 231: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:52,005 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:52,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-03-10 22:49:52,007 INFO L550 ElimStorePlain]: Start of recursive call 232: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:52,105 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:52,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-03-10 22:49:52,107 INFO L550 ElimStorePlain]: Start of recursive call 233: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:52,206 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:52,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-03-10 22:49:52,208 INFO L550 ElimStorePlain]: Start of recursive call 234: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:52,303 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:52,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-03-10 22:49:52,305 INFO L550 ElimStorePlain]: Start of recursive call 235: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:52,399 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:52,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-03-10 22:49:52,401 INFO L550 ElimStorePlain]: Start of recursive call 236: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:52,491 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:52,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 54 [2021-03-10 22:49:52,493 INFO L550 ElimStorePlain]: Start of recursive call 237: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:52,584 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:52,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:49:52,586 INFO L550 ElimStorePlain]: Start of recursive call 238: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:52,681 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:52,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 218 treesize of output 63 [2021-03-10 22:49:52,683 INFO L550 ElimStorePlain]: Start of recursive call 239: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:52,831 INFO L244 Elim1Store]: Index analysis took 107 ms [2021-03-10 22:49:52,840 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:52,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 174 treesize of output 51 [2021-03-10 22:49:52,842 INFO L550 ElimStorePlain]: Start of recursive call 240: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:52,903 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:52,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 209 treesize of output 60 [2021-03-10 22:49:52,905 INFO L550 ElimStorePlain]: Start of recursive call 241: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:52,966 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:52,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-03-10 22:49:52,968 INFO L550 ElimStorePlain]: Start of recursive call 242: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:53,030 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:53,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 55 [2021-03-10 22:49:53,032 INFO L550 ElimStorePlain]: Start of recursive call 243: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:53,094 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:53,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 62 [2021-03-10 22:49:53,096 INFO L550 ElimStorePlain]: Start of recursive call 244: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:53,159 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:53,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-03-10 22:49:53,161 INFO L550 ElimStorePlain]: Start of recursive call 245: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:53,224 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:53,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-03-10 22:49:53,226 INFO L550 ElimStorePlain]: Start of recursive call 246: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:53,293 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:53,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-03-10 22:49:53,296 INFO L550 ElimStorePlain]: Start of recursive call 247: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:53,364 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:53,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 164 treesize of output 49 [2021-03-10 22:49:53,367 INFO L550 ElimStorePlain]: Start of recursive call 248: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:53,450 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:49:53,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 221 treesize of output 68 [2021-03-10 22:49:53,453 INFO L550 ElimStorePlain]: Start of recursive call 249: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:53,519 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:53,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-03-10 22:49:53,521 INFO L550 ElimStorePlain]: Start of recursive call 250: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:53,605 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:49:53,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 216 treesize of output 67 [2021-03-10 22:49:53,607 INFO L550 ElimStorePlain]: Start of recursive call 251: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:53,672 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:53,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 229 treesize of output 64 [2021-03-10 22:49:53,674 INFO L550 ElimStorePlain]: Start of recursive call 252: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:53,740 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:53,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-03-10 22:49:53,743 INFO L550 ElimStorePlain]: Start of recursive call 253: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:53,810 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:53,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-03-10 22:49:53,812 INFO L550 ElimStorePlain]: Start of recursive call 254: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:53,878 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:53,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-03-10 22:49:53,881 INFO L550 ElimStorePlain]: Start of recursive call 255: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:53,949 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:53,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 216 treesize of output 63 [2021-03-10 22:49:53,951 INFO L550 ElimStorePlain]: Start of recursive call 256: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:54,018 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:54,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 204 treesize of output 59 [2021-03-10 22:49:54,021 INFO L550 ElimStorePlain]: Start of recursive call 257: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:54,089 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:54,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 227 treesize of output 62 [2021-03-10 22:49:54,091 INFO L550 ElimStorePlain]: Start of recursive call 258: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:54,159 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:54,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 213 treesize of output 62 [2021-03-10 22:49:54,161 INFO L550 ElimStorePlain]: Start of recursive call 259: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:54,229 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:54,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-03-10 22:49:54,231 INFO L550 ElimStorePlain]: Start of recursive call 260: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:54,299 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:54,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-03-10 22:49:54,302 INFO L550 ElimStorePlain]: Start of recursive call 261: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:54,373 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:54,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 229 treesize of output 60 [2021-03-10 22:49:54,376 INFO L550 ElimStorePlain]: Start of recursive call 262: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:54,450 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:54,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 235 treesize of output 66 [2021-03-10 22:49:54,453 INFO L550 ElimStorePlain]: Start of recursive call 263: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:54,525 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:54,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 232 treesize of output 63 [2021-03-10 22:49:54,527 INFO L550 ElimStorePlain]: Start of recursive call 264: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:54,597 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:54,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-03-10 22:49:54,599 INFO L550 ElimStorePlain]: Start of recursive call 265: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:54,669 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:54,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 237 treesize of output 64 [2021-03-10 22:49:54,671 INFO L550 ElimStorePlain]: Start of recursive call 266: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:54,744 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:54,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 224 treesize of output 59 [2021-03-10 22:49:54,746 INFO L550 ElimStorePlain]: Start of recursive call 267: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:54,817 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:54,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 53 [2021-03-10 22:49:54,820 INFO L550 ElimStorePlain]: Start of recursive call 268: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:54,891 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:54,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 226 treesize of output 65 [2021-03-10 22:49:54,894 INFO L550 ElimStorePlain]: Start of recursive call 269: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:54,967 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:54,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 229 treesize of output 64 [2021-03-10 22:49:54,969 INFO L550 ElimStorePlain]: Start of recursive call 270: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:55,040 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:55,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 232 treesize of output 63 [2021-03-10 22:49:55,042 INFO L550 ElimStorePlain]: Start of recursive call 271: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:55,114 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:55,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 196 treesize of output 57 [2021-03-10 22:49:55,117 INFO L550 ElimStorePlain]: Start of recursive call 272: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:55,192 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:55,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 215 treesize of output 62 [2021-03-10 22:49:55,194 INFO L550 ElimStorePlain]: Start of recursive call 273: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:55,267 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:55,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 53 [2021-03-10 22:49:55,270 INFO L550 ElimStorePlain]: Start of recursive call 274: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:55,344 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:55,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 57 [2021-03-10 22:49:55,346 INFO L550 ElimStorePlain]: Start of recursive call 275: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:55,422 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:55,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-03-10 22:49:55,425 INFO L550 ElimStorePlain]: Start of recursive call 276: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:55,500 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:55,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 227 treesize of output 62 [2021-03-10 22:49:55,502 INFO L550 ElimStorePlain]: Start of recursive call 277: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:55,576 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:55,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 57 [2021-03-10 22:49:55,578 INFO L550 ElimStorePlain]: Start of recursive call 278: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:55,655 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:55,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:49:55,658 INFO L550 ElimStorePlain]: Start of recursive call 279: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:55,734 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:55,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 61 [2021-03-10 22:49:55,736 INFO L550 ElimStorePlain]: Start of recursive call 280: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:55,813 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:55,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 226 treesize of output 65 [2021-03-10 22:49:55,815 INFO L550 ElimStorePlain]: Start of recursive call 281: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:55,903 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:55,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 216 treesize of output 63 [2021-03-10 22:49:55,906 INFO L550 ElimStorePlain]: Start of recursive call 282: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:55,994 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:55,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 217 treesize of output 60 [2021-03-10 22:49:55,997 INFO L550 ElimStorePlain]: Start of recursive call 283: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:56,073 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:56,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 218 treesize of output 63 [2021-03-10 22:49:56,075 INFO L550 ElimStorePlain]: Start of recursive call 284: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:56,151 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:56,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 222 treesize of output 61 [2021-03-10 22:49:56,153 INFO L550 ElimStorePlain]: Start of recursive call 285: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:56,230 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:56,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-03-10 22:49:56,233 INFO L550 ElimStorePlain]: Start of recursive call 286: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:56,311 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:56,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 211 treesize of output 60 [2021-03-10 22:49:56,314 INFO L550 ElimStorePlain]: Start of recursive call 287: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:56,391 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:56,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 217 treesize of output 60 [2021-03-10 22:49:56,393 INFO L550 ElimStorePlain]: Start of recursive call 288: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:56,472 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:56,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 223 treesize of output 64 [2021-03-10 22:49:56,475 INFO L550 ElimStorePlain]: Start of recursive call 289: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:56,555 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:56,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 196 treesize of output 57 [2021-03-10 22:49:56,558 INFO L550 ElimStorePlain]: Start of recursive call 290: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:56,641 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:56,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 57 [2021-03-10 22:49:56,644 INFO L550 ElimStorePlain]: Start of recursive call 291: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:56,720 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:56,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-03-10 22:49:56,722 INFO L550 ElimStorePlain]: Start of recursive call 292: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:56,800 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:56,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 221 treesize of output 64 [2021-03-10 22:49:56,802 INFO L550 ElimStorePlain]: Start of recursive call 293: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:56,883 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:56,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 215 treesize of output 62 [2021-03-10 22:49:56,886 INFO L550 ElimStorePlain]: Start of recursive call 294: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:56,965 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:56,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-03-10 22:49:56,968 INFO L550 ElimStorePlain]: Start of recursive call 295: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:57,048 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:57,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 225 treesize of output 64 [2021-03-10 22:49:57,050 INFO L550 ElimStorePlain]: Start of recursive call 296: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:57,130 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:57,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 183 treesize of output 54 [2021-03-10 22:49:57,132 INFO L550 ElimStorePlain]: Start of recursive call 297: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:57,214 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:57,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 62 [2021-03-10 22:49:57,216 INFO L550 ElimStorePlain]: Start of recursive call 298: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:57,297 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:57,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:49:57,300 INFO L550 ElimStorePlain]: Start of recursive call 299: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:57,381 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:57,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-03-10 22:49:57,383 INFO L550 ElimStorePlain]: Start of recursive call 300: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:57,475 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:57,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 206 treesize of output 61 [2021-03-10 22:49:57,477 INFO L550 ElimStorePlain]: Start of recursive call 301: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:57,554 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:57,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-03-10 22:49:57,556 INFO L550 ElimStorePlain]: Start of recursive call 302: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:57,634 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:57,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 54 [2021-03-10 22:49:57,636 INFO L550 ElimStorePlain]: Start of recursive call 303: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:57,717 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:57,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 179 treesize of output 52 [2021-03-10 22:49:57,721 INFO L550 ElimStorePlain]: Start of recursive call 304: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:57,801 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:57,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 58 [2021-03-10 22:49:57,804 INFO L550 ElimStorePlain]: Start of recursive call 305: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:57,882 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:57,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-03-10 22:49:57,885 INFO L550 ElimStorePlain]: Start of recursive call 306: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:57,961 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:57,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 191 treesize of output 56 [2021-03-10 22:49:57,963 INFO L550 ElimStorePlain]: Start of recursive call 307: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:58,040 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:58,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 211 treesize of output 62 [2021-03-10 22:49:58,042 INFO L550 ElimStorePlain]: Start of recursive call 308: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:58,120 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:58,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 55 [2021-03-10 22:49:58,122 INFO L550 ElimStorePlain]: Start of recursive call 309: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:58,199 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:58,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 212 treesize of output 59 [2021-03-10 22:49:58,201 INFO L550 ElimStorePlain]: Start of recursive call 310: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:58,285 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:58,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 55 [2021-03-10 22:49:58,287 INFO L550 ElimStorePlain]: Start of recursive call 311: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:58,369 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:58,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-03-10 22:49:58,371 INFO L550 ElimStorePlain]: Start of recursive call 312: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:58,451 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:58,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 214 treesize of output 61 [2021-03-10 22:49:58,454 INFO L550 ElimStorePlain]: Start of recursive call 313: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:58,533 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:58,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 62 [2021-03-10 22:49:58,536 INFO L550 ElimStorePlain]: Start of recursive call 314: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:58,614 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:58,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 57 [2021-03-10 22:49:58,616 INFO L550 ElimStorePlain]: Start of recursive call 315: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:58,697 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:58,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 213 treesize of output 62 [2021-03-10 22:49:58,700 INFO L550 ElimStorePlain]: Start of recursive call 316: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:58,782 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:58,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:49:58,785 INFO L550 ElimStorePlain]: Start of recursive call 317: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:58,867 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:58,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 212 treesize of output 59 [2021-03-10 22:49:58,869 INFO L550 ElimStorePlain]: Start of recursive call 318: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:58,967 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:49:58,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 231 treesize of output 70 [2021-03-10 22:49:58,972 INFO L550 ElimStorePlain]: Start of recursive call 319: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:59,051 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:59,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 213 treesize of output 60 [2021-03-10 22:49:59,053 INFO L550 ElimStorePlain]: Start of recursive call 320: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:59,132 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:59,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 220 treesize of output 63 [2021-03-10 22:49:59,134 INFO L550 ElimStorePlain]: Start of recursive call 321: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:59,215 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:59,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 62 [2021-03-10 22:49:59,217 INFO L550 ElimStorePlain]: Start of recursive call 322: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:59,297 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:59,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:49:59,299 INFO L550 ElimStorePlain]: Start of recursive call 323: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:59,379 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:59,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-03-10 22:49:59,381 INFO L550 ElimStorePlain]: Start of recursive call 324: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:59,461 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:59,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 201 treesize of output 58 [2021-03-10 22:49:59,463 INFO L550 ElimStorePlain]: Start of recursive call 325: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:59,545 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:59,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 184 treesize of output 53 [2021-03-10 22:49:59,547 INFO L550 ElimStorePlain]: Start of recursive call 326: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:59,631 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:59,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 226 treesize of output 65 [2021-03-10 22:49:59,633 INFO L550 ElimStorePlain]: Start of recursive call 327: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:59,716 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:59,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-03-10 22:49:59,718 INFO L550 ElimStorePlain]: Start of recursive call 328: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:59,800 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:59,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-03-10 22:49:59,802 INFO L550 ElimStorePlain]: Start of recursive call 329: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:59,883 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:59,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-03-10 22:49:59,885 INFO L550 ElimStorePlain]: Start of recursive call 330: End of recursive call: and 1 xjuncts. [2021-03-10 22:49:59,970 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:49:59,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-03-10 22:49:59,973 INFO L550 ElimStorePlain]: Start of recursive call 331: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:00,063 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:00,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 222 treesize of output 61 [2021-03-10 22:50:00,065 INFO L550 ElimStorePlain]: Start of recursive call 332: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:00,187 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:00,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-03-10 22:50:00,189 INFO L550 ElimStorePlain]: Start of recursive call 333: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:00,242 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:00,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:50:00,244 INFO L550 ElimStorePlain]: Start of recursive call 334: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:00,298 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:00,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-03-10 22:50:00,300 INFO L550 ElimStorePlain]: Start of recursive call 335: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:00,354 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:00,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 201 treesize of output 60 [2021-03-10 22:50:00,356 INFO L550 ElimStorePlain]: Start of recursive call 336: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:00,411 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:00,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-03-10 22:50:00,414 INFO L550 ElimStorePlain]: Start of recursive call 337: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:00,492 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:00,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 226 treesize of output 69 [2021-03-10 22:50:00,495 INFO L550 ElimStorePlain]: Start of recursive call 338: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:00,552 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:00,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-03-10 22:50:00,554 INFO L550 ElimStorePlain]: Start of recursive call 339: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:00,608 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:00,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 210 treesize of output 57 [2021-03-10 22:50:00,610 INFO L550 ElimStorePlain]: Start of recursive call 340: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:00,664 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:00,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 211 treesize of output 62 [2021-03-10 22:50:00,667 INFO L550 ElimStorePlain]: Start of recursive call 341: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:00,738 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:00,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 221 treesize of output 68 [2021-03-10 22:50:00,742 INFO L550 ElimStorePlain]: Start of recursive call 342: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:00,796 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:00,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 194 treesize of output 55 [2021-03-10 22:50:00,798 INFO L550 ElimStorePlain]: Start of recursive call 343: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:00,853 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:00,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 56 [2021-03-10 22:50:00,855 INFO L550 ElimStorePlain]: Start of recursive call 344: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:00,910 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:00,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 185 treesize of output 56 [2021-03-10 22:50:00,912 INFO L550 ElimStorePlain]: Start of recursive call 345: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:00,967 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:00,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:50:00,969 INFO L550 ElimStorePlain]: Start of recursive call 346: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:01,023 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:01,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 57 [2021-03-10 22:50:01,026 INFO L550 ElimStorePlain]: Start of recursive call 347: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:01,082 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:01,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 174 treesize of output 51 [2021-03-10 22:50:01,084 INFO L550 ElimStorePlain]: Start of recursive call 348: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:01,139 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:01,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-03-10 22:50:01,142 INFO L550 ElimStorePlain]: Start of recursive call 349: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:01,197 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:01,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 217 treesize of output 60 [2021-03-10 22:50:01,199 INFO L550 ElimStorePlain]: Start of recursive call 350: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:01,254 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:01,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 216 treesize of output 63 [2021-03-10 22:50:01,256 INFO L550 ElimStorePlain]: Start of recursive call 351: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:01,312 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:01,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 224 treesize of output 63 [2021-03-10 22:50:01,314 INFO L550 ElimStorePlain]: Start of recursive call 352: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:01,370 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:01,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 183 treesize of output 54 [2021-03-10 22:50:01,371 INFO L550 ElimStorePlain]: Start of recursive call 353: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:01,427 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:01,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 210 treesize of output 61 [2021-03-10 22:50:01,430 INFO L550 ElimStorePlain]: Start of recursive call 354: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:01,486 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:01,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 56 [2021-03-10 22:50:01,488 INFO L550 ElimStorePlain]: Start of recursive call 355: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:01,545 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:01,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 56 [2021-03-10 22:50:01,547 INFO L550 ElimStorePlain]: Start of recursive call 356: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:01,605 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:01,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 223 treesize of output 64 [2021-03-10 22:50:01,607 INFO L550 ElimStorePlain]: Start of recursive call 357: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:01,664 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:01,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 209 treesize of output 60 [2021-03-10 22:50:01,666 INFO L550 ElimStorePlain]: Start of recursive call 358: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:01,723 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:01,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-03-10 22:50:01,725 INFO L550 ElimStorePlain]: Start of recursive call 359: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:01,784 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:01,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 191 treesize of output 56 [2021-03-10 22:50:01,787 INFO L550 ElimStorePlain]: Start of recursive call 360: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:01,848 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:01,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 56 [2021-03-10 22:50:01,850 INFO L550 ElimStorePlain]: Start of recursive call 361: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:01,916 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:01,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 215 treesize of output 62 [2021-03-10 22:50:01,918 INFO L550 ElimStorePlain]: Start of recursive call 362: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:01,985 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:01,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 227 treesize of output 62 [2021-03-10 22:50:01,987 INFO L550 ElimStorePlain]: Start of recursive call 363: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:02,049 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:02,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-03-10 22:50:02,051 INFO L550 ElimStorePlain]: Start of recursive call 364: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:02,113 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:02,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 207 treesize of output 58 [2021-03-10 22:50:02,116 INFO L550 ElimStorePlain]: Start of recursive call 365: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:02,178 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:02,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-03-10 22:50:02,180 INFO L550 ElimStorePlain]: Start of recursive call 366: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:02,246 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:02,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 61 [2021-03-10 22:50:02,248 INFO L550 ElimStorePlain]: Start of recursive call 367: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:02,313 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:02,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 222 treesize of output 61 [2021-03-10 22:50:02,316 INFO L550 ElimStorePlain]: Start of recursive call 368: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:02,381 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:02,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:50:02,383 INFO L550 ElimStorePlain]: Start of recursive call 369: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:02,445 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:02,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-03-10 22:50:02,447 INFO L550 ElimStorePlain]: Start of recursive call 370: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:02,507 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:02,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:50:02,509 INFO L550 ElimStorePlain]: Start of recursive call 371: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:02,570 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:02,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 57 [2021-03-10 22:50:02,572 INFO L550 ElimStorePlain]: Start of recursive call 372: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:02,632 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:02,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 214 treesize of output 61 [2021-03-10 22:50:02,634 INFO L550 ElimStorePlain]: Start of recursive call 373: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:02,694 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:02,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 56 [2021-03-10 22:50:02,696 INFO L550 ElimStorePlain]: Start of recursive call 374: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:02,777 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:02,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 234 treesize of output 61 [2021-03-10 22:50:02,779 INFO L550 ElimStorePlain]: Start of recursive call 375: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:02,840 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:02,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 215 treesize of output 62 [2021-03-10 22:50:02,843 INFO L550 ElimStorePlain]: Start of recursive call 376: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:02,904 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:02,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-03-10 22:50:02,906 INFO L550 ElimStorePlain]: Start of recursive call 377: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:02,967 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:02,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 227 treesize of output 62 [2021-03-10 22:50:02,969 INFO L550 ElimStorePlain]: Start of recursive call 378: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:03,030 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:03,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 228 treesize of output 65 [2021-03-10 22:50:03,032 INFO L550 ElimStorePlain]: Start of recursive call 379: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:03,093 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:03,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:50:03,095 INFO L550 ElimStorePlain]: Start of recursive call 380: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:03,157 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:03,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-03-10 22:50:03,159 INFO L550 ElimStorePlain]: Start of recursive call 381: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:03,220 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:03,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 57 [2021-03-10 22:50:03,223 INFO L550 ElimStorePlain]: Start of recursive call 382: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:03,284 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:03,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-03-10 22:50:03,286 INFO L550 ElimStorePlain]: Start of recursive call 383: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:03,348 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:03,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:50:03,350 INFO L550 ElimStorePlain]: Start of recursive call 384: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:03,411 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:03,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 179 treesize of output 52 [2021-03-10 22:50:03,413 INFO L550 ElimStorePlain]: Start of recursive call 385: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:03,474 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:03,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-03-10 22:50:03,476 INFO L550 ElimStorePlain]: Start of recursive call 386: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:03,537 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:03,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 215 treesize of output 58 [2021-03-10 22:50:03,539 INFO L550 ElimStorePlain]: Start of recursive call 387: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:03,600 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:03,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-03-10 22:50:03,602 INFO L550 ElimStorePlain]: Start of recursive call 388: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:03,682 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:03,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 221 treesize of output 68 [2021-03-10 22:50:03,684 INFO L550 ElimStorePlain]: Start of recursive call 389: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:03,752 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:03,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-03-10 22:50:03,754 INFO L550 ElimStorePlain]: Start of recursive call 390: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:03,842 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:03,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 201 treesize of output 64 [2021-03-10 22:50:03,845 INFO L550 ElimStorePlain]: Start of recursive call 391: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:03,910 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:03,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 220 treesize of output 63 [2021-03-10 22:50:03,912 INFO L550 ElimStorePlain]: Start of recursive call 392: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:03,975 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:03,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 213 treesize of output 60 [2021-03-10 22:50:03,977 INFO L550 ElimStorePlain]: Start of recursive call 393: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:04,043 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:04,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:50:04,045 INFO L550 ElimStorePlain]: Start of recursive call 394: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:04,113 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:04,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 179 treesize of output 52 [2021-03-10 22:50:04,115 INFO L550 ElimStorePlain]: Start of recursive call 395: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:04,182 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:04,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 220 treesize of output 63 [2021-03-10 22:50:04,184 INFO L550 ElimStorePlain]: Start of recursive call 396: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:04,249 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:04,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 229 treesize of output 64 [2021-03-10 22:50:04,252 INFO L550 ElimStorePlain]: Start of recursive call 397: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:04,314 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:04,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 237 treesize of output 64 [2021-03-10 22:50:04,316 INFO L550 ElimStorePlain]: Start of recursive call 398: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:04,378 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:04,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 232 treesize of output 63 [2021-03-10 22:50:04,380 INFO L550 ElimStorePlain]: Start of recursive call 399: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:04,441 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:04,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 189 treesize of output 54 [2021-03-10 22:50:04,443 INFO L550 ElimStorePlain]: Start of recursive call 400: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:04,505 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:04,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 196 treesize of output 57 [2021-03-10 22:50:04,507 INFO L550 ElimStorePlain]: Start of recursive call 401: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:04,570 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:04,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-03-10 22:50:04,572 INFO L550 ElimStorePlain]: Start of recursive call 402: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:04,651 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:04,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 216 treesize of output 67 [2021-03-10 22:50:04,654 INFO L550 ElimStorePlain]: Start of recursive call 403: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:04,717 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:04,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 57 [2021-03-10 22:50:04,720 INFO L550 ElimStorePlain]: Start of recursive call 404: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:04,781 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:04,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-03-10 22:50:04,783 INFO L550 ElimStorePlain]: Start of recursive call 405: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:04,844 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:04,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 201 treesize of output 58 [2021-03-10 22:50:04,846 INFO L550 ElimStorePlain]: Start of recursive call 406: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:04,909 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:04,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 227 treesize of output 62 [2021-03-10 22:50:04,911 INFO L550 ElimStorePlain]: Start of recursive call 407: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:04,974 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:04,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 213 treesize of output 62 [2021-03-10 22:50:04,976 INFO L550 ElimStorePlain]: Start of recursive call 408: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:05,039 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:05,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 216 treesize of output 61 [2021-03-10 22:50:05,041 INFO L550 ElimStorePlain]: Start of recursive call 409: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:05,104 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:05,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-03-10 22:50:05,107 INFO L550 ElimStorePlain]: Start of recursive call 410: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:05,176 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:05,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 201 treesize of output 58 [2021-03-10 22:50:05,179 INFO L550 ElimStorePlain]: Start of recursive call 411: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:05,259 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:05,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 226 treesize of output 69 [2021-03-10 22:50:05,262 INFO L550 ElimStorePlain]: Start of recursive call 412: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:05,328 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:05,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 183 treesize of output 54 [2021-03-10 22:50:05,330 INFO L550 ElimStorePlain]: Start of recursive call 413: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:05,392 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:05,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-03-10 22:50:05,395 INFO L550 ElimStorePlain]: Start of recursive call 414: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:05,463 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:05,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 56 [2021-03-10 22:50:05,465 INFO L550 ElimStorePlain]: Start of recursive call 415: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:05,527 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:05,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:50:05,529 INFO L550 ElimStorePlain]: Start of recursive call 416: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:05,597 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:05,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 227 treesize of output 62 [2021-03-10 22:50:05,600 INFO L550 ElimStorePlain]: Start of recursive call 417: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:05,669 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:05,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 212 treesize of output 59 [2021-03-10 22:50:05,671 INFO L550 ElimStorePlain]: Start of recursive call 418: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:05,739 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:05,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 179 treesize of output 52 [2021-03-10 22:50:05,741 INFO L550 ElimStorePlain]: Start of recursive call 419: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:05,806 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:05,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 54 [2021-03-10 22:50:05,809 INFO L550 ElimStorePlain]: Start of recursive call 420: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:05,877 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:05,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 229 treesize of output 60 [2021-03-10 22:50:05,879 INFO L550 ElimStorePlain]: Start of recursive call 421: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:05,946 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:05,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-03-10 22:50:05,948 INFO L550 ElimStorePlain]: Start of recursive call 422: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:06,015 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:06,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 55 [2021-03-10 22:50:06,017 INFO L550 ElimStorePlain]: Start of recursive call 423: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:06,084 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:06,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 210 treesize of output 61 [2021-03-10 22:50:06,087 INFO L550 ElimStorePlain]: Start of recursive call 424: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:06,154 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:06,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-03-10 22:50:06,157 INFO L550 ElimStorePlain]: Start of recursive call 425: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:06,219 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:06,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 55 [2021-03-10 22:50:06,221 INFO L550 ElimStorePlain]: Start of recursive call 426: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:06,283 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:06,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 218 treesize of output 63 [2021-03-10 22:50:06,285 INFO L550 ElimStorePlain]: Start of recursive call 427: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:06,365 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:06,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 211 treesize of output 66 [2021-03-10 22:50:06,368 INFO L550 ElimStorePlain]: Start of recursive call 428: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:06,430 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:06,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-03-10 22:50:06,433 INFO L550 ElimStorePlain]: Start of recursive call 429: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:06,513 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:06,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 221 treesize of output 68 [2021-03-10 22:50:06,516 INFO L550 ElimStorePlain]: Start of recursive call 430: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:06,578 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:06,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 218 treesize of output 63 [2021-03-10 22:50:06,580 INFO L550 ElimStorePlain]: Start of recursive call 431: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:06,642 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:06,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 57 [2021-03-10 22:50:06,645 INFO L550 ElimStorePlain]: Start of recursive call 432: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:06,707 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:06,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-03-10 22:50:06,709 INFO L550 ElimStorePlain]: Start of recursive call 433: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:06,771 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:06,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 191 treesize of output 56 [2021-03-10 22:50:06,773 INFO L550 ElimStorePlain]: Start of recursive call 434: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:06,836 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:06,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 56 [2021-03-10 22:50:06,839 INFO L550 ElimStorePlain]: Start of recursive call 435: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:06,900 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:06,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 61 [2021-03-10 22:50:06,903 INFO L550 ElimStorePlain]: Start of recursive call 436: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:06,964 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:06,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-03-10 22:50:06,967 INFO L550 ElimStorePlain]: Start of recursive call 437: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:07,029 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:07,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 229 treesize of output 60 [2021-03-10 22:50:07,031 INFO L550 ElimStorePlain]: Start of recursive call 438: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:07,092 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:07,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 174 treesize of output 51 [2021-03-10 22:50:07,095 INFO L550 ElimStorePlain]: Start of recursive call 439: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:07,156 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:07,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 220 treesize of output 63 [2021-03-10 22:50:07,158 INFO L550 ElimStorePlain]: Start of recursive call 440: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:07,239 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:07,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 211 treesize of output 66 [2021-03-10 22:50:07,242 INFO L550 ElimStorePlain]: Start of recursive call 441: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:07,309 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:07,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-03-10 22:50:07,312 INFO L550 ElimStorePlain]: Start of recursive call 442: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:07,378 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:07,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 204 treesize of output 59 [2021-03-10 22:50:07,380 INFO L550 ElimStorePlain]: Start of recursive call 443: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:07,442 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:07,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-03-10 22:50:07,444 INFO L550 ElimStorePlain]: Start of recursive call 444: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:07,508 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:07,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 213 treesize of output 58 [2021-03-10 22:50:07,511 INFO L550 ElimStorePlain]: Start of recursive call 445: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:07,573 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:07,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 206 treesize of output 59 [2021-03-10 22:50:07,575 INFO L550 ElimStorePlain]: Start of recursive call 446: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:07,642 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:07,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 183 treesize of output 54 [2021-03-10 22:50:07,644 INFO L550 ElimStorePlain]: Start of recursive call 447: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:07,709 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:07,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:50:07,711 INFO L550 ElimStorePlain]: Start of recursive call 448: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:07,776 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:07,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 216 treesize of output 63 [2021-03-10 22:50:07,778 INFO L550 ElimStorePlain]: Start of recursive call 449: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:07,840 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:07,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-03-10 22:50:07,842 INFO L550 ElimStorePlain]: Start of recursive call 450: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:07,902 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:07,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 209 treesize of output 60 [2021-03-10 22:50:07,905 INFO L550 ElimStorePlain]: Start of recursive call 451: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:07,965 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:07,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:50:07,968 INFO L550 ElimStorePlain]: Start of recursive call 452: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:08,027 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:08,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 206 treesize of output 59 [2021-03-10 22:50:08,029 INFO L550 ElimStorePlain]: Start of recursive call 453: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:08,089 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:08,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 57 [2021-03-10 22:50:08,091 INFO L550 ElimStorePlain]: Start of recursive call 454: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:08,151 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:08,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 210 treesize of output 61 [2021-03-10 22:50:08,153 INFO L550 ElimStorePlain]: Start of recursive call 455: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:08,213 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:08,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 60 [2021-03-10 22:50:08,215 INFO L550 ElimStorePlain]: Start of recursive call 456: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:08,276 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:08,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 210 treesize of output 61 [2021-03-10 22:50:08,278 INFO L550 ElimStorePlain]: Start of recursive call 457: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:08,338 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:08,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 239 treesize of output 62 [2021-03-10 22:50:08,340 INFO L550 ElimStorePlain]: Start of recursive call 458: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:08,400 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:08,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 237 treesize of output 64 [2021-03-10 22:50:08,402 INFO L550 ElimStorePlain]: Start of recursive call 459: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:08,462 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:08,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 218 treesize of output 63 [2021-03-10 22:50:08,464 INFO L550 ElimStorePlain]: Start of recursive call 460: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:08,523 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:08,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:50:08,525 INFO L550 ElimStorePlain]: Start of recursive call 461: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:08,584 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:08,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 206 treesize of output 61 [2021-03-10 22:50:08,586 INFO L550 ElimStorePlain]: Start of recursive call 462: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:08,645 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:08,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 185 treesize of output 56 [2021-03-10 22:50:08,647 INFO L550 ElimStorePlain]: Start of recursive call 463: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:08,705 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:08,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-03-10 22:50:08,707 INFO L550 ElimStorePlain]: Start of recursive call 464: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:08,765 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:08,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 54 [2021-03-10 22:50:08,768 INFO L550 ElimStorePlain]: Start of recursive call 465: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:08,827 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:08,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 214 treesize of output 61 [2021-03-10 22:50:08,829 INFO L550 ElimStorePlain]: Start of recursive call 466: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:08,888 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:08,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 58 [2021-03-10 22:50:08,890 INFO L550 ElimStorePlain]: Start of recursive call 467: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:08,949 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:08,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 184 treesize of output 53 [2021-03-10 22:50:08,951 INFO L550 ElimStorePlain]: Start of recursive call 468: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:09,010 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:09,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 221 treesize of output 64 [2021-03-10 22:50:09,012 INFO L550 ElimStorePlain]: Start of recursive call 469: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:09,071 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:09,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:50:09,073 INFO L550 ElimStorePlain]: Start of recursive call 470: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:09,190 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:09,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-03-10 22:50:09,192 INFO L550 ElimStorePlain]: Start of recursive call 471: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:09,230 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:09,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 239 treesize of output 62 [2021-03-10 22:50:09,232 INFO L550 ElimStorePlain]: Start of recursive call 472: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:09,270 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:09,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-03-10 22:50:09,272 INFO L550 ElimStorePlain]: Start of recursive call 473: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:09,315 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:09,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-03-10 22:50:09,317 INFO L550 ElimStorePlain]: Start of recursive call 474: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:09,361 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:09,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 227 treesize of output 62 [2021-03-10 22:50:09,363 INFO L550 ElimStorePlain]: Start of recursive call 475: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:09,407 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:09,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 185 treesize of output 56 [2021-03-10 22:50:09,409 INFO L550 ElimStorePlain]: Start of recursive call 476: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:09,454 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:09,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-03-10 22:50:09,456 INFO L550 ElimStorePlain]: Start of recursive call 477: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:09,499 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:09,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 60 [2021-03-10 22:50:09,501 INFO L550 ElimStorePlain]: Start of recursive call 478: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:09,541 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:09,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-03-10 22:50:09,543 INFO L550 ElimStorePlain]: Start of recursive call 479: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:09,583 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:09,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 184 treesize of output 53 [2021-03-10 22:50:09,585 INFO L550 ElimStorePlain]: Start of recursive call 480: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:09,628 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:09,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 220 treesize of output 59 [2021-03-10 22:50:09,631 INFO L550 ElimStorePlain]: Start of recursive call 481: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:09,673 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:09,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 229 treesize of output 60 [2021-03-10 22:50:09,675 INFO L550 ElimStorePlain]: Start of recursive call 482: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:09,717 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:09,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 222 treesize of output 61 [2021-03-10 22:50:09,719 INFO L550 ElimStorePlain]: Start of recursive call 483: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:09,760 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:09,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 57 [2021-03-10 22:50:09,763 INFO L550 ElimStorePlain]: Start of recursive call 484: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:09,805 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:09,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-03-10 22:50:09,807 INFO L550 ElimStorePlain]: Start of recursive call 485: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:09,849 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:09,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 184 treesize of output 53 [2021-03-10 22:50:09,851 INFO L550 ElimStorePlain]: Start of recursive call 486: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:09,908 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:09,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 216 treesize of output 67 [2021-03-10 22:50:09,910 INFO L550 ElimStorePlain]: Start of recursive call 487: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:09,948 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:09,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 55 [2021-03-10 22:50:09,950 INFO L550 ElimStorePlain]: Start of recursive call 488: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:09,989 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:09,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 229 treesize of output 60 [2021-03-10 22:50:09,991 INFO L550 ElimStorePlain]: Start of recursive call 489: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:10,029 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:10,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 210 treesize of output 57 [2021-03-10 22:50:10,031 INFO L550 ElimStorePlain]: Start of recursive call 490: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:10,070 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:10,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 225 treesize of output 64 [2021-03-10 22:50:10,073 INFO L550 ElimStorePlain]: Start of recursive call 491: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:10,111 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:10,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 209 treesize of output 60 [2021-03-10 22:50:10,113 INFO L550 ElimStorePlain]: Start of recursive call 492: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:10,151 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:10,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 215 treesize of output 62 [2021-03-10 22:50:10,154 INFO L550 ElimStorePlain]: Start of recursive call 493: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:10,193 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:10,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 221 treesize of output 68 [2021-03-10 22:50:10,197 INFO L550 ElimStorePlain]: Start of recursive call 494: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:10,250 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:10,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-03-10 22:50:10,252 INFO L550 ElimStorePlain]: Start of recursive call 495: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:10,291 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:10,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-03-10 22:50:10,294 INFO L550 ElimStorePlain]: Start of recursive call 496: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:10,331 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:10,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 224 treesize of output 63 [2021-03-10 22:50:10,333 INFO L550 ElimStorePlain]: Start of recursive call 497: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:10,370 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:10,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 224 treesize of output 59 [2021-03-10 22:50:10,372 INFO L550 ElimStorePlain]: Start of recursive call 498: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:10,408 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:10,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 234 treesize of output 61 [2021-03-10 22:50:10,411 INFO L550 ElimStorePlain]: Start of recursive call 499: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:10,447 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:10,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 185 treesize of output 56 [2021-03-10 22:50:10,450 INFO L550 ElimStorePlain]: Start of recursive call 500: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:10,485 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:10,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 222 treesize of output 61 [2021-03-10 22:50:10,487 INFO L550 ElimStorePlain]: Start of recursive call 501: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:10,522 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:10,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 223 treesize of output 64 [2021-03-10 22:50:10,524 INFO L550 ElimStorePlain]: Start of recursive call 502: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:10,560 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:10,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 229 treesize of output 60 [2021-03-10 22:50:10,562 INFO L550 ElimStorePlain]: Start of recursive call 503: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:10,597 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:10,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-03-10 22:50:10,599 INFO L550 ElimStorePlain]: Start of recursive call 504: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:10,605 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:10,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 62 [2021-03-10 22:50:10,607 INFO L550 ElimStorePlain]: Start of recursive call 505: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:10,609 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:50:10,610 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:50:10,610 INFO L247 ElimStorePlain]: Needed 505 recursive calls to eliminate 2 variables, input treesize:104497, output treesize:3 [2021-03-10 22:50:10,623 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:50:10,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:50:10,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16] total 23 [2021-03-10 22:50:10,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67374522] [2021-03-10 22:50:10,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-10 22:50:10,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:50:10,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-10 22:50:10,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-03-10 22:50:10,625 INFO L87 Difference]: Start difference. First operand 49976 states and 127041 transitions. Second operand has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:50:11,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:50:11,161 INFO L93 Difference]: Finished difference Result 52344 states and 132850 transitions. [2021-03-10 22:50:11,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 22:50:11,162 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-03-10 22:50:11,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:50:11,246 INFO L225 Difference]: With dead ends: 52344 [2021-03-10 22:50:11,247 INFO L226 Difference]: Without dead ends: 52328 [2021-03-10 22:50:11,247 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 700.1ms TimeCoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-03-10 22:50:11,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52328 states. [2021-03-10 22:50:12,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52328 to 51480. [2021-03-10 22:50:12,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51480 states, 51479 states have (on average 2.547854464927446) internal successors, (131161), 51479 states have internal predecessors, (131161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:50:12,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51480 states to 51480 states and 131161 transitions. [2021-03-10 22:50:12,242 INFO L78 Accepts]: Start accepts. Automaton has 51480 states and 131161 transitions. Word has length 42 [2021-03-10 22:50:12,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:50:12,242 INFO L480 AbstractCegarLoop]: Abstraction has 51480 states and 131161 transitions. [2021-03-10 22:50:12,242 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:50:12,242 INFO L276 IsEmpty]: Start isEmpty. Operand 51480 states and 131161 transitions. [2021-03-10 22:50:12,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-03-10 22:50:12,278 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:50:12,278 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:50:12,478 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 138 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable4305 [2021-03-10 22:50:12,479 INFO L428 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:50:12,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:50:12,479 INFO L82 PathProgramCache]: Analyzing trace with hash 848508788, now seen corresponding path program 138 times [2021-03-10 22:50:12,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:50:12,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813477097] [2021-03-10 22:50:12,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:50:12,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:50:12,574 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:50:12,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813477097] [2021-03-10 22:50:12,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894248292] [2021-03-10 22:50:12,575 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 139 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 139 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:50:12,603 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2021-03-10 22:50:12,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:50:12,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 55 conjunts are in the unsatisfiable core [2021-03-10 22:50:12,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:50:13,188 INFO L446 ElimStorePlain]: Different costs {28=[f], 66=[f_inv]} [2021-03-10 22:50:13,558 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 65 [2021-03-10 22:50:13,558 INFO L354 Elim1Store]: treesize reduction 125, result has 44.4 percent of original size [2021-03-10 22:50:13,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 15 new quantified variables, introduced 28 case distinctions, treesize of input 264 treesize of output 208 [2021-03-10 22:50:15,117 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-03-10 22:50:17,469 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 22:50:17,669 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-03-10 22:50:17,669 INFO L628 ElimStorePlain]: treesize reduction 17, result has 96.2 percent of original size [2021-03-10 22:50:17,817 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-03-10 22:50:17,818 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:50:17,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 435 treesize of output 289 [2021-03-10 22:50:18,028 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:18,035 INFO L628 ElimStorePlain]: treesize reduction 9, result has 25.0 percent of original size [2021-03-10 22:50:18,036 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:50:18,036 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:264, output treesize:3 [2021-03-10 22:50:18,050 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:50:18,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:50:18,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16] total 23 [2021-03-10 22:50:18,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698108501] [2021-03-10 22:50:18,051 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-10 22:50:18,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:50:18,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-10 22:50:18,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-03-10 22:50:18,051 INFO L87 Difference]: Start difference. First operand 51480 states and 131161 transitions. Second operand has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:50:18,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:50:18,739 INFO L93 Difference]: Finished difference Result 53250 states and 135691 transitions. [2021-03-10 22:50:18,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-10 22:50:18,740 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-03-10 22:50:18,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:50:18,842 INFO L225 Difference]: With dead ends: 53250 [2021-03-10 22:50:18,843 INFO L226 Difference]: Without dead ends: 53232 [2021-03-10 22:50:18,843 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 576.8ms TimeCoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-03-10 22:50:18,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53232 states. [2021-03-10 22:50:19,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53232 to 52433. [2021-03-10 22:50:19,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52433 states, 52432 states have (on average 2.5524679584986267) internal successors, (133831), 52432 states have internal predecessors, (133831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:50:19,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52433 states to 52433 states and 133831 transitions. [2021-03-10 22:50:19,947 INFO L78 Accepts]: Start accepts. Automaton has 52433 states and 133831 transitions. Word has length 42 [2021-03-10 22:50:19,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:50:19,947 INFO L480 AbstractCegarLoop]: Abstraction has 52433 states and 133831 transitions. [2021-03-10 22:50:19,947 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:50:19,947 INFO L276 IsEmpty]: Start isEmpty. Operand 52433 states and 133831 transitions. [2021-03-10 22:50:19,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-03-10 22:50:19,981 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:50:19,981 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:50:20,182 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4742,139 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:50:20,182 INFO L428 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:50:20,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:50:20,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1524801932, now seen corresponding path program 139 times [2021-03-10 22:50:20,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:50:20,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008139290] [2021-03-10 22:50:20,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:50:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:50:20,264 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:50:20,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008139290] [2021-03-10 22:50:20,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113846364] [2021-03-10 22:50:20,264 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 140 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 140 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:50:20,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:50:20,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 45 conjunts are in the unsatisfiable core [2021-03-10 22:50:20,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:50:20,991 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 73 [2021-03-10 22:50:20,992 INFO L354 Elim1Store]: treesize reduction 347, result has 35.9 percent of original size [2021-03-10 22:50:20,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 16 new quantified variables, introduced 45 case distinctions, treesize of input 207 treesize of output 254 [2021-03-10 22:50:20,997 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:21,096 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:50:21,098 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:50:21,098 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:207, output treesize:294 [2021-03-10 22:50:21,269 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2021-03-10 22:50:22,628 WARN L205 SmtUtils]: Spent 859.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 47 [2021-03-10 22:50:22,770 INFO L446 ElimStorePlain]: Different costs {6=[v_prenex_138], 10=[f], 15=[v_prenex_139], 21=[v_prenex_137]} [2021-03-10 22:50:22,812 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:50:22,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 23 treesize of output 64 [2021-03-10 22:50:22,816 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:22,828 INFO L628 ElimStorePlain]: treesize reduction 216, result has 1.4 percent of original size [2021-03-10 22:50:22,828 INFO L518 ElimStorePlain]: Eliminatee f vanished before elimination [2021-03-10 22:50:22,829 INFO L518 ElimStorePlain]: Eliminatee v_prenex_139 vanished before elimination [2021-03-10 22:50:22,829 INFO L518 ElimStorePlain]: Eliminatee v_prenex_137 vanished before elimination [2021-03-10 22:50:22,829 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:50:22,829 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:239, output treesize:3 [2021-03-10 22:50:22,843 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:50:22,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:50:22,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16] total 23 [2021-03-10 22:50:22,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369362901] [2021-03-10 22:50:22,844 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-10 22:50:22,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:50:22,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-10 22:50:22,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2021-03-10 22:50:22,845 INFO L87 Difference]: Start difference. First operand 52433 states and 133831 transitions. Second operand has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:50:23,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:50:23,832 INFO L93 Difference]: Finished difference Result 54975 states and 140281 transitions. [2021-03-10 22:50:23,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-10 22:50:23,833 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-03-10 22:50:23,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:50:23,950 INFO L225 Difference]: With dead ends: 54975 [2021-03-10 22:50:23,950 INFO L226 Difference]: Without dead ends: 54946 [2021-03-10 22:50:23,950 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1676.0ms TimeCoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2021-03-10 22:50:24,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54946 states. [2021-03-10 22:50:24,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54946 to 53500. [2021-03-10 22:50:25,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53500 states, 53499 states have (on average 2.556926297687807) internal successors, (136793), 53499 states have internal predecessors, (136793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:50:25,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53500 states to 53500 states and 136793 transitions. [2021-03-10 22:50:25,155 INFO L78 Accepts]: Start accepts. Automaton has 53500 states and 136793 transitions. Word has length 42 [2021-03-10 22:50:25,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:50:25,155 INFO L480 AbstractCegarLoop]: Abstraction has 53500 states and 136793 transitions. [2021-03-10 22:50:25,155 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:50:25,155 INFO L276 IsEmpty]: Start isEmpty. Operand 53500 states and 136793 transitions. [2021-03-10 22:50:25,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-03-10 22:50:25,192 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:50:25,192 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:50:25,393 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 140 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5661 [2021-03-10 22:50:25,393 INFO L428 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:50:25,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:50:25,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1648769676, now seen corresponding path program 140 times [2021-03-10 22:50:25,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:50:25,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647645347] [2021-03-10 22:50:25,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:50:25,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:50:25,474 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:50:25,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647645347] [2021-03-10 22:50:25,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954126909] [2021-03-10 22:50:25,474 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 141 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 141 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:50:25,499 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 22:50:25,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:50:25,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 45 conjunts are in the unsatisfiable core [2021-03-10 22:50:25,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:50:26,045 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 71 [2021-03-10 22:50:26,045 INFO L354 Elim1Store]: treesize reduction 236, result has 38.7 percent of original size [2021-03-10 22:50:26,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 15 new quantified variables, introduced 36 case distinctions, treesize of input 205 treesize of output 205 [2021-03-10 22:50:26,050 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:26,141 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:50:26,143 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:50:26,143 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:205, output treesize:300 [2021-03-10 22:50:26,721 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2021-03-10 22:50:27,019 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 228 [2021-03-10 22:50:27,196 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 323 [2021-03-10 22:50:27,310 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 323 [2021-03-10 22:50:30,231 WARN L205 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 323 DAG size of output: 53 [2021-03-10 22:50:30,674 INFO L446 ElimStorePlain]: Different costs {10=[f], 15=[v_prenex_144], 21=[v_prenex_142, v_prenex_143]} [2021-03-10 22:50:30,743 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:50:30,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 27 treesize of output 99 [2021-03-10 22:50:30,747 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:30,760 INFO L628 ElimStorePlain]: treesize reduction 357, result has 0.8 percent of original size [2021-03-10 22:50:30,761 INFO L518 ElimStorePlain]: Eliminatee v_prenex_144 vanished before elimination [2021-03-10 22:50:30,761 INFO L518 ElimStorePlain]: Eliminatee v_prenex_142 vanished before elimination [2021-03-10 22:50:30,761 INFO L518 ElimStorePlain]: Eliminatee v_prenex_143 vanished before elimination [2021-03-10 22:50:30,761 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:50:30,762 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:384, output treesize:3 [2021-03-10 22:50:30,777 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:50:30,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:50:30,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16] total 23 [2021-03-10 22:50:30,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847276433] [2021-03-10 22:50:30,777 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-10 22:50:30,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:50:30,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-10 22:50:30,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2021-03-10 22:50:30,778 INFO L87 Difference]: Start difference. First operand 53500 states and 136793 transitions. Second operand has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:50:31,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:50:31,818 INFO L93 Difference]: Finished difference Result 56192 states and 143625 transitions. [2021-03-10 22:50:31,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-10 22:50:31,820 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-03-10 22:50:31,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:50:31,934 INFO L225 Difference]: With dead ends: 56192 [2021-03-10 22:50:31,934 INFO L226 Difference]: Without dead ends: 56159 [2021-03-10 22:50:31,934 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 3535.5ms TimeCoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2021-03-10 22:50:31,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56159 states. [2021-03-10 22:50:32,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56159 to 54544. [2021-03-10 22:50:33,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54544 states, 54543 states have (on average 2.5606402288102963) internal successors, (139665), 54543 states have internal predecessors, (139665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:50:33,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54544 states to 54544 states and 139665 transitions. [2021-03-10 22:50:33,146 INFO L78 Accepts]: Start accepts. Automaton has 54544 states and 139665 transitions. Word has length 42 [2021-03-10 22:50:33,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:50:33,146 INFO L480 AbstractCegarLoop]: Abstraction has 54544 states and 139665 transitions. [2021-03-10 22:50:33,146 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:50:33,146 INFO L276 IsEmpty]: Start isEmpty. Operand 54544 states and 139665 transitions. [2021-03-10 22:50:33,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-03-10 22:50:33,348 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:50:33,349 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:50:33,551 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5672,141 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:50:33,551 INFO L428 AbstractCegarLoop]: === Iteration 146 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:50:33,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:50:33,552 INFO L82 PathProgramCache]: Analyzing trace with hash -522687372, now seen corresponding path program 141 times [2021-03-10 22:50:33,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:50:33,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100343359] [2021-03-10 22:50:33,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:50:33,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:50:33,633 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:50:33,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100343359] [2021-03-10 22:50:33,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520419334] [2021-03-10 22:50:33,634 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 142 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 142 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:50:33,662 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2021-03-10 22:50:33,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:50:33,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 53 conjunts are in the unsatisfiable core [2021-03-10 22:50:33,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:50:34,213 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2021-03-10 22:50:34,511 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 70 [2021-03-10 22:50:34,512 INFO L354 Elim1Store]: treesize reduction 209, result has 38.0 percent of original size [2021-03-10 22:50:34,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 16 new quantified variables, introduced 36 case distinctions, treesize of input 258 treesize of output 210 [2021-03-10 22:50:37,522 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 22:50:37,626 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-03-10 22:50:37,626 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:50:39,092 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 22:50:39,092 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:258, output treesize:343 [2021-03-10 22:50:42,261 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2021-03-10 22:50:42,762 WARN L205 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 404 DAG size of output: 404 [2021-03-10 22:50:43,444 WARN L205 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 835 DAG size of output: 835 [2021-03-10 22:50:43,848 WARN L205 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 835 DAG size of output: 835 [2021-03-10 22:50:44,495 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 835 [2021-03-10 22:50:50,535 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2021-03-10 22:50:50,734 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:50,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-03-10 22:50:50,736 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:50,843 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:50,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 1 [2021-03-10 22:50:50,844 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:50,944 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:50,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-03-10 22:50:50,947 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:51,054 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:51,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 1 [2021-03-10 22:50:51,056 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:51,136 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:51,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 182 treesize of output 55 [2021-03-10 22:50:51,138 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:51,245 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:51,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 1 [2021-03-10 22:50:51,247 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:51,357 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:51,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 1 [2021-03-10 22:50:51,358 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:51,466 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:51,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-03-10 22:50:51,468 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:51,560 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:51,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 181 treesize of output 50 [2021-03-10 22:50:51,562 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:51,686 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:51,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 1 [2021-03-10 22:50:51,688 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:51,806 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:51,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:50:51,808 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:51,926 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:51,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-03-10 22:50:51,929 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:52,052 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:52,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 1 [2021-03-10 22:50:52,053 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:52,176 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:52,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 1 [2021-03-10 22:50:52,178 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:52,297 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:52,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:50:52,300 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:52,427 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:52,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 64 [2021-03-10 22:50:52,429 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:52,545 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:52,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 1 [2021-03-10 22:50:52,547 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:52,657 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:52,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 1 [2021-03-10 22:50:52,658 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:52,763 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:52,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 64 [2021-03-10 22:50:52,765 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:52,850 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:52,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 184 treesize of output 53 [2021-03-10 22:50:52,852 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:52,936 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:52,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 189 treesize of output 56 [2021-03-10 22:50:52,938 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:53,212 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 38 [2021-03-10 22:50:53,213 INFO L354 Elim1Store]: treesize reduction 108, result has 36.1 percent of original size [2021-03-10 22:50:53,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 130 [2021-03-10 22:50:53,217 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:53,321 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:53,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:50:53,323 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:53,429 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:53,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-03-10 22:50:53,431 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:53,539 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:53,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 1 [2021-03-10 22:50:53,540 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:53,643 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:53,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-03-10 22:50:53,645 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:53,748 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:53,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 66 [2021-03-10 22:50:53,751 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:53,837 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:53,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 180 treesize of output 1 [2021-03-10 22:50:53,839 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:53,947 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:53,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 1 [2021-03-10 22:50:53,949 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:54,057 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:54,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 1 [2021-03-10 22:50:54,058 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:54,167 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:54,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 1 [2021-03-10 22:50:54,168 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:54,278 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:54,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 1 [2021-03-10 22:50:54,280 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:54,385 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:54,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-03-10 22:50:54,388 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:54,498 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:54,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 1 [2021-03-10 22:50:54,499 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:54,611 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:54,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 1 [2021-03-10 22:50:54,612 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:54,718 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:54,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:50:54,720 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:54,826 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:54,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-03-10 22:50:54,829 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:54,937 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:54,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:50:54,939 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:55,046 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:55,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 66 [2021-03-10 22:50:55,049 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:55,155 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:55,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-03-10 22:50:55,158 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:55,261 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:55,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 62 [2021-03-10 22:50:55,263 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:55,363 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:55,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 66 [2021-03-10 22:50:55,365 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:55,466 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:55,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-03-10 22:50:55,469 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:55,588 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:55,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 1 [2021-03-10 22:50:55,589 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:55,706 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:55,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:50:55,708 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:55,822 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:55,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 66 [2021-03-10 22:50:55,824 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:55,939 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:55,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-03-10 22:50:55,941 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:56,062 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:56,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-03-10 22:50:56,064 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:56,180 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:56,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-03-10 22:50:56,182 INFO L550 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:56,295 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:56,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:50:56,298 INFO L550 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:56,415 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:56,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 200 treesize of output 65 [2021-03-10 22:50:56,417 INFO L550 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:56,542 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:56,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 1 [2021-03-10 22:50:56,543 INFO L550 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:56,669 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:56,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 1 [2021-03-10 22:50:56,671 INFO L550 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:56,771 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:56,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 202 treesize of output 59 [2021-03-10 22:50:56,773 INFO L550 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:56,956 INFO L354 Elim1Store]: treesize reduction 153, result has 9.5 percent of original size [2021-03-10 22:50:56,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 83 [2021-03-10 22:50:56,959 INFO L550 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:57,077 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:57,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:50:57,079 INFO L550 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:57,177 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:57,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 186 treesize of output 51 [2021-03-10 22:50:57,180 INFO L550 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:57,275 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:57,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 182 treesize of output 55 [2021-03-10 22:50:57,278 INFO L550 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:57,391 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:57,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 64 [2021-03-10 22:50:57,394 INFO L550 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:57,511 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:57,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:50:57,514 INFO L550 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:57,625 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:57,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 68 [2021-03-10 22:50:57,627 INFO L550 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:57,736 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:57,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:50:57,739 INFO L550 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:57,847 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:57,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 61 [2021-03-10 22:50:57,850 INFO L550 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:57,959 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:57,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-03-10 22:50:57,961 INFO L550 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:58,071 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:58,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-03-10 22:50:58,073 INFO L550 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:58,163 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:58,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 177 treesize of output 54 [2021-03-10 22:50:58,166 INFO L550 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:58,277 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:58,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 64 [2021-03-10 22:50:58,279 INFO L550 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:58,391 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:58,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-03-10 22:50:58,393 INFO L550 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:58,486 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:58,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 177 treesize of output 54 [2021-03-10 22:50:58,489 INFO L550 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:58,604 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:58,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:50:58,606 INFO L550 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:58,720 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:58,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-03-10 22:50:58,723 INFO L550 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:58,837 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:58,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-03-10 22:50:58,839 INFO L550 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:58,955 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:58,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-03-10 22:50:58,958 INFO L550 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:59,084 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:59,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 64 [2021-03-10 22:50:59,086 INFO L550 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:59,210 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:59,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 64 [2021-03-10 22:50:59,212 INFO L550 ElimStorePlain]: Start of recursive call 76: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:59,335 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:59,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 68 [2021-03-10 22:50:59,338 INFO L550 ElimStorePlain]: Start of recursive call 77: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:59,461 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:59,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-03-10 22:50:59,464 INFO L550 ElimStorePlain]: Start of recursive call 78: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:59,584 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:59,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-03-10 22:50:59,587 INFO L550 ElimStorePlain]: Start of recursive call 79: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:59,700 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:59,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 61 [2021-03-10 22:50:59,702 INFO L550 ElimStorePlain]: Start of recursive call 80: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:59,795 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:50:59,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 170 treesize of output 55 [2021-03-10 22:50:59,797 INFO L550 ElimStorePlain]: Start of recursive call 81: End of recursive call: and 1 xjuncts. [2021-03-10 22:50:59,916 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:50:59,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-03-10 22:50:59,919 INFO L550 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:00,037 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:00,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-03-10 22:51:00,040 INFO L550 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:00,159 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:00,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 64 [2021-03-10 22:51:00,161 INFO L550 ElimStorePlain]: Start of recursive call 84: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:00,263 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:00,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 187 treesize of output 56 [2021-03-10 22:51:00,265 INFO L550 ElimStorePlain]: Start of recursive call 85: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:00,386 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:00,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 61 [2021-03-10 22:51:00,388 INFO L550 ElimStorePlain]: Start of recursive call 86: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:00,508 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:00,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:00,510 INFO L550 ElimStorePlain]: Start of recursive call 87: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:00,632 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:00,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:00,634 INFO L550 ElimStorePlain]: Start of recursive call 88: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:00,756 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:00,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 69 [2021-03-10 22:51:00,758 INFO L550 ElimStorePlain]: Start of recursive call 89: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:00,881 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:00,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-03-10 22:51:00,883 INFO L550 ElimStorePlain]: Start of recursive call 90: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:01,020 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:01,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-03-10 22:51:01,022 INFO L550 ElimStorePlain]: Start of recursive call 91: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:01,155 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:01,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:51:01,157 INFO L550 ElimStorePlain]: Start of recursive call 92: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:01,282 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:01,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 61 [2021-03-10 22:51:01,284 INFO L550 ElimStorePlain]: Start of recursive call 93: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:01,408 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:01,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 67 [2021-03-10 22:51:01,410 INFO L550 ElimStorePlain]: Start of recursive call 94: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:01,562 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:01,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:01,564 INFO L550 ElimStorePlain]: Start of recursive call 95: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:01,650 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:01,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-03-10 22:51:01,653 INFO L550 ElimStorePlain]: Start of recursive call 96: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:01,720 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:01,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 61 [2021-03-10 22:51:01,722 INFO L550 ElimStorePlain]: Start of recursive call 97: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:01,809 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:01,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 62 [2021-03-10 22:51:01,811 INFO L550 ElimStorePlain]: Start of recursive call 98: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:01,899 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:01,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 67 [2021-03-10 22:51:01,902 INFO L550 ElimStorePlain]: Start of recursive call 99: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:01,991 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:01,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-03-10 22:51:01,993 INFO L550 ElimStorePlain]: Start of recursive call 100: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:02,081 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:02,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-03-10 22:51:02,083 INFO L550 ElimStorePlain]: Start of recursive call 101: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:02,171 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:02,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-03-10 22:51:02,173 INFO L550 ElimStorePlain]: Start of recursive call 102: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:02,264 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:02,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 64 [2021-03-10 22:51:02,267 INFO L550 ElimStorePlain]: Start of recursive call 103: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:02,356 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:02,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 61 [2021-03-10 22:51:02,358 INFO L550 ElimStorePlain]: Start of recursive call 104: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:02,451 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:02,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 64 [2021-03-10 22:51:02,454 INFO L550 ElimStorePlain]: Start of recursive call 105: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:02,527 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:02,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 199 treesize of output 58 [2021-03-10 22:51:02,529 INFO L550 ElimStorePlain]: Start of recursive call 106: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:02,625 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:02,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-03-10 22:51:02,628 INFO L550 ElimStorePlain]: Start of recursive call 107: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:02,734 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:02,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-03-10 22:51:02,736 INFO L550 ElimStorePlain]: Start of recursive call 108: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:02,817 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:02,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 192 treesize of output 59 [2021-03-10 22:51:02,820 INFO L550 ElimStorePlain]: Start of recursive call 109: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:02,895 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:02,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 184 treesize of output 53 [2021-03-10 22:51:02,898 INFO L550 ElimStorePlain]: Start of recursive call 110: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:02,973 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:02,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 196 treesize of output 55 [2021-03-10 22:51:02,975 INFO L550 ElimStorePlain]: Start of recursive call 111: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:03,072 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:03,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 69 [2021-03-10 22:51:03,075 INFO L550 ElimStorePlain]: Start of recursive call 112: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:03,172 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:03,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 64 [2021-03-10 22:51:03,174 INFO L550 ElimStorePlain]: Start of recursive call 113: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:03,273 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:03,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-03-10 22:51:03,275 INFO L550 ElimStorePlain]: Start of recursive call 114: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:03,374 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:03,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 66 [2021-03-10 22:51:03,376 INFO L550 ElimStorePlain]: Start of recursive call 115: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:03,473 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:03,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-03-10 22:51:03,475 INFO L550 ElimStorePlain]: Start of recursive call 116: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:03,569 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:03,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:03,571 INFO L550 ElimStorePlain]: Start of recursive call 117: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:03,644 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:03,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 212 treesize of output 63 [2021-03-10 22:51:03,646 INFO L550 ElimStorePlain]: Start of recursive call 118: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:03,740 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:03,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-03-10 22:51:03,742 INFO L550 ElimStorePlain]: Start of recursive call 119: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:03,835 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:03,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 61 [2021-03-10 22:51:03,838 INFO L550 ElimStorePlain]: Start of recursive call 120: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:03,912 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:03,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 179 treesize of output 52 [2021-03-10 22:51:03,914 INFO L550 ElimStorePlain]: Start of recursive call 121: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:04,008 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:04,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:51:04,010 INFO L550 ElimStorePlain]: Start of recursive call 122: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:04,105 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:04,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-03-10 22:51:04,107 INFO L550 ElimStorePlain]: Start of recursive call 123: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:04,182 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:04,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 172 treesize of output 53 [2021-03-10 22:51:04,184 INFO L550 ElimStorePlain]: Start of recursive call 124: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:04,279 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:04,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 61 [2021-03-10 22:51:04,281 INFO L550 ElimStorePlain]: Start of recursive call 125: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:04,356 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:04,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 174 treesize of output 51 [2021-03-10 22:51:04,358 INFO L550 ElimStorePlain]: Start of recursive call 126: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:04,452 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:04,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 66 [2021-03-10 22:51:04,455 INFO L550 ElimStorePlain]: Start of recursive call 127: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:04,548 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:04,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:51:04,550 INFO L550 ElimStorePlain]: Start of recursive call 128: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:04,645 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:04,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:04,647 INFO L550 ElimStorePlain]: Start of recursive call 129: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:04,754 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:04,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 61 [2021-03-10 22:51:04,756 INFO L550 ElimStorePlain]: Start of recursive call 130: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:04,861 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:04,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-03-10 22:51:04,863 INFO L550 ElimStorePlain]: Start of recursive call 131: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:04,963 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:04,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-03-10 22:51:04,966 INFO L550 ElimStorePlain]: Start of recursive call 132: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:05,066 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:05,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-03-10 22:51:05,069 INFO L550 ElimStorePlain]: Start of recursive call 133: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:05,170 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:05,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-03-10 22:51:05,172 INFO L550 ElimStorePlain]: Start of recursive call 134: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:05,273 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:05,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:05,275 INFO L550 ElimStorePlain]: Start of recursive call 135: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:05,357 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:05,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 194 treesize of output 57 [2021-03-10 22:51:05,360 INFO L550 ElimStorePlain]: Start of recursive call 136: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:05,465 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:05,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-03-10 22:51:05,468 INFO L550 ElimStorePlain]: Start of recursive call 137: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:05,573 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:05,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-03-10 22:51:05,575 INFO L550 ElimStorePlain]: Start of recursive call 138: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:05,671 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:05,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-03-10 22:51:05,674 INFO L550 ElimStorePlain]: Start of recursive call 139: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:05,770 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:05,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-03-10 22:51:05,773 INFO L550 ElimStorePlain]: Start of recursive call 140: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:05,869 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:05,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 64 [2021-03-10 22:51:05,871 INFO L550 ElimStorePlain]: Start of recursive call 141: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:05,968 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:05,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:51:05,970 INFO L550 ElimStorePlain]: Start of recursive call 142: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:06,070 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:06,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 68 [2021-03-10 22:51:06,073 INFO L550 ElimStorePlain]: Start of recursive call 143: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:06,175 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:06,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 66 [2021-03-10 22:51:06,178 INFO L550 ElimStorePlain]: Start of recursive call 144: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:06,258 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:06,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 199 treesize of output 56 [2021-03-10 22:51:06,261 INFO L550 ElimStorePlain]: Start of recursive call 145: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:06,361 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:06,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-03-10 22:51:06,363 INFO L550 ElimStorePlain]: Start of recursive call 146: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:06,463 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:06,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-03-10 22:51:06,465 INFO L550 ElimStorePlain]: Start of recursive call 147: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:06,547 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:06,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 189 treesize of output 54 [2021-03-10 22:51:06,549 INFO L550 ElimStorePlain]: Start of recursive call 148: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:06,650 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:06,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 59 [2021-03-10 22:51:06,652 INFO L550 ElimStorePlain]: Start of recursive call 149: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:06,753 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:06,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-03-10 22:51:06,755 INFO L550 ElimStorePlain]: Start of recursive call 150: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:06,856 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:06,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:06,858 INFO L550 ElimStorePlain]: Start of recursive call 151: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:06,964 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:06,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-03-10 22:51:06,967 INFO L550 ElimStorePlain]: Start of recursive call 152: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:07,077 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:07,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-03-10 22:51:07,080 INFO L550 ElimStorePlain]: Start of recursive call 153: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:07,167 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:07,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 176 treesize of output 49 [2021-03-10 22:51:07,169 INFO L550 ElimStorePlain]: Start of recursive call 154: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:07,278 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:07,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 61 [2021-03-10 22:51:07,281 INFO L550 ElimStorePlain]: Start of recursive call 155: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:07,367 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:07,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 179 treesize of output 52 [2021-03-10 22:51:07,369 INFO L550 ElimStorePlain]: Start of recursive call 156: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:07,481 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:07,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-03-10 22:51:07,483 INFO L550 ElimStorePlain]: Start of recursive call 157: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:07,592 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:07,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:07,594 INFO L550 ElimStorePlain]: Start of recursive call 158: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:07,713 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:07,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-03-10 22:51:07,716 INFO L550 ElimStorePlain]: Start of recursive call 159: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:07,840 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:07,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 62 [2021-03-10 22:51:07,842 INFO L550 ElimStorePlain]: Start of recursive call 160: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:07,954 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:07,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-03-10 22:51:07,957 INFO L550 ElimStorePlain]: Start of recursive call 161: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:08,063 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:08,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-03-10 22:51:08,065 INFO L550 ElimStorePlain]: Start of recursive call 162: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:08,169 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:08,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-03-10 22:51:08,172 INFO L550 ElimStorePlain]: Start of recursive call 163: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:08,278 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:08,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-03-10 22:51:08,280 INFO L550 ElimStorePlain]: Start of recursive call 164: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:08,385 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:08,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:51:08,388 INFO L550 ElimStorePlain]: Start of recursive call 165: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:08,495 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:08,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 61 [2021-03-10 22:51:08,497 INFO L550 ElimStorePlain]: Start of recursive call 166: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:08,605 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:08,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-03-10 22:51:08,608 INFO L550 ElimStorePlain]: Start of recursive call 167: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:08,714 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:08,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:08,717 INFO L550 ElimStorePlain]: Start of recursive call 168: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:08,825 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:08,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 64 [2021-03-10 22:51:08,827 INFO L550 ElimStorePlain]: Start of recursive call 169: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:08,933 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:08,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 67 [2021-03-10 22:51:08,935 INFO L550 ElimStorePlain]: Start of recursive call 170: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:09,041 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:09,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-03-10 22:51:09,044 INFO L550 ElimStorePlain]: Start of recursive call 171: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:09,148 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:09,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:51:09,150 INFO L550 ElimStorePlain]: Start of recursive call 172: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:09,253 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:09,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-03-10 22:51:09,255 INFO L550 ElimStorePlain]: Start of recursive call 173: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:09,357 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:09,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 67 [2021-03-10 22:51:09,360 INFO L550 ElimStorePlain]: Start of recursive call 174: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:09,476 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:09,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 62 [2021-03-10 22:51:09,478 INFO L550 ElimStorePlain]: Start of recursive call 175: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:09,591 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:09,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 68 [2021-03-10 22:51:09,594 INFO L550 ElimStorePlain]: Start of recursive call 176: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:09,712 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:09,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:09,714 INFO L550 ElimStorePlain]: Start of recursive call 177: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:09,827 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:09,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 200 treesize of output 65 [2021-03-10 22:51:09,830 INFO L550 ElimStorePlain]: Start of recursive call 178: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:09,942 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:09,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-03-10 22:51:09,944 INFO L550 ElimStorePlain]: Start of recursive call 179: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:10,053 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:10,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:51:10,055 INFO L550 ElimStorePlain]: Start of recursive call 180: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:10,169 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:10,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 66 [2021-03-10 22:51:10,171 INFO L550 ElimStorePlain]: Start of recursive call 181: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:10,284 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:10,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-03-10 22:51:10,288 INFO L550 ElimStorePlain]: Start of recursive call 182: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:10,402 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:10,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-03-10 22:51:10,404 INFO L550 ElimStorePlain]: Start of recursive call 183: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:10,512 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:10,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-03-10 22:51:10,514 INFO L550 ElimStorePlain]: Start of recursive call 184: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:10,621 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:10,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-03-10 22:51:10,623 INFO L550 ElimStorePlain]: Start of recursive call 185: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:10,731 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:10,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-03-10 22:51:10,733 INFO L550 ElimStorePlain]: Start of recursive call 186: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:10,840 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:10,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:10,842 INFO L550 ElimStorePlain]: Start of recursive call 187: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:10,950 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:10,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-03-10 22:51:10,952 INFO L550 ElimStorePlain]: Start of recursive call 188: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:11,061 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:11,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-03-10 22:51:11,063 INFO L550 ElimStorePlain]: Start of recursive call 189: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:11,172 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:11,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-03-10 22:51:11,174 INFO L550 ElimStorePlain]: Start of recursive call 190: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:11,284 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:11,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:51:11,287 INFO L550 ElimStorePlain]: Start of recursive call 191: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:11,395 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:11,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-03-10 22:51:11,397 INFO L550 ElimStorePlain]: Start of recursive call 192: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:11,532 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:11,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-03-10 22:51:11,535 INFO L550 ElimStorePlain]: Start of recursive call 193: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:11,607 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:11,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:51:11,610 INFO L550 ElimStorePlain]: Start of recursive call 194: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:11,691 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:11,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-03-10 22:51:11,694 INFO L550 ElimStorePlain]: Start of recursive call 195: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:11,778 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:11,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-03-10 22:51:11,781 INFO L550 ElimStorePlain]: Start of recursive call 196: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:11,840 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:11,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 184 treesize of output 53 [2021-03-10 22:51:11,842 INFO L550 ElimStorePlain]: Start of recursive call 197: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:11,924 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:11,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-03-10 22:51:11,927 INFO L550 ElimStorePlain]: Start of recursive call 198: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:12,007 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:12,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:51:12,009 INFO L550 ElimStorePlain]: Start of recursive call 199: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:12,090 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:12,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 66 [2021-03-10 22:51:12,093 INFO L550 ElimStorePlain]: Start of recursive call 200: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:12,174 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:12,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 66 [2021-03-10 22:51:12,177 INFO L550 ElimStorePlain]: Start of recursive call 201: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:12,258 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:12,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-03-10 22:51:12,261 INFO L550 ElimStorePlain]: Start of recursive call 202: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:12,340 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:12,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-03-10 22:51:12,343 INFO L550 ElimStorePlain]: Start of recursive call 203: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:12,402 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:12,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 197 treesize of output 58 [2021-03-10 22:51:12,404 INFO L550 ElimStorePlain]: Start of recursive call 204: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:12,487 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:12,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:12,489 INFO L550 ElimStorePlain]: Start of recursive call 205: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:12,572 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:12,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-03-10 22:51:12,575 INFO L550 ElimStorePlain]: Start of recursive call 206: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:12,638 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:12,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 174 treesize of output 51 [2021-03-10 22:51:12,640 INFO L550 ElimStorePlain]: Start of recursive call 207: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:12,721 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:12,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 68 [2021-03-10 22:51:12,723 INFO L550 ElimStorePlain]: Start of recursive call 208: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:12,800 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:12,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:51:12,803 INFO L550 ElimStorePlain]: Start of recursive call 209: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:12,879 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:12,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:51:12,882 INFO L550 ElimStorePlain]: Start of recursive call 210: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:12,939 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:12,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 194 treesize of output 55 [2021-03-10 22:51:12,942 INFO L550 ElimStorePlain]: Start of recursive call 211: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:13,020 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:13,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:13,022 INFO L550 ElimStorePlain]: Start of recursive call 212: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:13,100 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:13,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-03-10 22:51:13,102 INFO L550 ElimStorePlain]: Start of recursive call 213: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:13,179 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:13,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-03-10 22:51:13,181 INFO L550 ElimStorePlain]: Start of recursive call 214: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:13,259 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:13,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-03-10 22:51:13,261 INFO L550 ElimStorePlain]: Start of recursive call 215: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:13,340 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:13,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:13,343 INFO L550 ElimStorePlain]: Start of recursive call 216: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:13,422 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:13,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 67 [2021-03-10 22:51:13,424 INFO L550 ElimStorePlain]: Start of recursive call 217: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:13,503 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:13,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 64 [2021-03-10 22:51:13,506 INFO L550 ElimStorePlain]: Start of recursive call 218: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:13,584 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:13,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-03-10 22:51:13,586 INFO L550 ElimStorePlain]: Start of recursive call 219: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:13,664 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:13,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-03-10 22:51:13,666 INFO L550 ElimStorePlain]: Start of recursive call 220: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:13,744 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:13,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-03-10 22:51:13,746 INFO L550 ElimStorePlain]: Start of recursive call 221: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:13,824 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:13,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-03-10 22:51:13,826 INFO L550 ElimStorePlain]: Start of recursive call 222: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:13,903 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:13,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 69 [2021-03-10 22:51:13,906 INFO L550 ElimStorePlain]: Start of recursive call 223: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:13,989 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:13,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-03-10 22:51:13,992 INFO L550 ElimStorePlain]: Start of recursive call 224: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:14,063 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:14,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 177 treesize of output 54 [2021-03-10 22:51:14,065 INFO L550 ElimStorePlain]: Start of recursive call 225: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:14,151 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:14,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-03-10 22:51:14,153 INFO L550 ElimStorePlain]: Start of recursive call 226: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:14,237 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:14,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-03-10 22:51:14,239 INFO L550 ElimStorePlain]: Start of recursive call 227: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:14,326 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:14,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 62 [2021-03-10 22:51:14,329 INFO L550 ElimStorePlain]: Start of recursive call 228: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:14,445 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:14,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-03-10 22:51:14,449 INFO L550 ElimStorePlain]: Start of recursive call 229: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:14,566 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:14,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 64 [2021-03-10 22:51:14,570 INFO L550 ElimStorePlain]: Start of recursive call 230: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:14,687 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:14,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-03-10 22:51:14,690 INFO L550 ElimStorePlain]: Start of recursive call 231: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:14,789 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:14,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:14,791 INFO L550 ElimStorePlain]: Start of recursive call 232: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:14,876 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:14,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 60 [2021-03-10 22:51:14,878 INFO L550 ElimStorePlain]: Start of recursive call 233: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:14,958 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:14,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 68 [2021-03-10 22:51:14,961 INFO L550 ElimStorePlain]: Start of recursive call 234: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:15,040 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:15,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:51:15,043 INFO L550 ElimStorePlain]: Start of recursive call 235: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:15,104 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:15,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 60 [2021-03-10 22:51:15,107 INFO L550 ElimStorePlain]: Start of recursive call 236: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:15,187 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:15,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-03-10 22:51:15,189 INFO L550 ElimStorePlain]: Start of recursive call 237: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:15,269 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:15,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-03-10 22:51:15,272 INFO L550 ElimStorePlain]: Start of recursive call 238: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:15,333 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:15,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 192 treesize of output 57 [2021-03-10 22:51:15,335 INFO L550 ElimStorePlain]: Start of recursive call 239: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:15,415 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:15,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-03-10 22:51:15,417 INFO L550 ElimStorePlain]: Start of recursive call 240: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:15,497 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:15,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 68 [2021-03-10 22:51:15,500 INFO L550 ElimStorePlain]: Start of recursive call 241: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:15,584 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:15,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-03-10 22:51:15,586 INFO L550 ElimStorePlain]: Start of recursive call 242: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:15,669 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:15,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 200 treesize of output 67 [2021-03-10 22:51:15,672 INFO L550 ElimStorePlain]: Start of recursive call 243: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:15,756 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:15,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:51:15,758 INFO L550 ElimStorePlain]: Start of recursive call 244: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:15,840 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:15,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-03-10 22:51:15,843 INFO L550 ElimStorePlain]: Start of recursive call 245: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:15,926 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:15,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 67 [2021-03-10 22:51:15,928 INFO L550 ElimStorePlain]: Start of recursive call 246: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:16,014 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:16,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-03-10 22:51:16,016 INFO L550 ElimStorePlain]: Start of recursive call 247: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:16,109 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:16,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 64 [2021-03-10 22:51:16,112 INFO L550 ElimStorePlain]: Start of recursive call 248: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:16,187 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:16,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 179 treesize of output 52 [2021-03-10 22:51:16,189 INFO L550 ElimStorePlain]: Start of recursive call 249: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:16,277 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:16,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 68 [2021-03-10 22:51:16,280 INFO L550 ElimStorePlain]: Start of recursive call 250: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:16,348 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:16,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 175 treesize of output 56 [2021-03-10 22:51:16,350 INFO L550 ElimStorePlain]: Start of recursive call 251: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:16,420 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:16,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 197 treesize of output 60 [2021-03-10 22:51:16,422 INFO L550 ElimStorePlain]: Start of recursive call 252: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:16,512 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:16,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-03-10 22:51:16,515 INFO L550 ElimStorePlain]: Start of recursive call 253: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:16,601 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:16,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 62 [2021-03-10 22:51:16,603 INFO L550 ElimStorePlain]: Start of recursive call 254: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:16,674 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:16,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 173 treesize of output 58 [2021-03-10 22:51:16,676 INFO L550 ElimStorePlain]: Start of recursive call 255: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:16,766 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:16,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 200 treesize of output 63 [2021-03-10 22:51:16,768 INFO L550 ElimStorePlain]: Start of recursive call 256: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:16,858 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:16,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 60 [2021-03-10 22:51:16,861 INFO L550 ElimStorePlain]: Start of recursive call 257: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:16,942 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:16,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:51:16,944 INFO L550 ElimStorePlain]: Start of recursive call 258: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:17,026 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:17,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-03-10 22:51:17,028 INFO L550 ElimStorePlain]: Start of recursive call 259: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:17,110 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:17,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:51:17,113 INFO L550 ElimStorePlain]: Start of recursive call 260: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:17,196 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:17,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 66 [2021-03-10 22:51:17,198 INFO L550 ElimStorePlain]: Start of recursive call 261: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:17,282 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:17,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:51:17,285 INFO L550 ElimStorePlain]: Start of recursive call 262: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:17,349 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:17,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 181 treesize of output 50 [2021-03-10 22:51:17,351 INFO L550 ElimStorePlain]: Start of recursive call 263: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:17,434 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:17,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:17,436 INFO L550 ElimStorePlain]: Start of recursive call 264: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:17,519 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:17,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-03-10 22:51:17,521 INFO L550 ElimStorePlain]: Start of recursive call 265: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:17,604 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:17,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:51:17,606 INFO L550 ElimStorePlain]: Start of recursive call 266: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:17,688 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:17,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:51:17,690 INFO L550 ElimStorePlain]: Start of recursive call 267: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:17,773 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:17,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:17,775 INFO L550 ElimStorePlain]: Start of recursive call 268: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:17,858 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:17,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:17,860 INFO L550 ElimStorePlain]: Start of recursive call 269: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:17,944 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:17,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-03-10 22:51:17,947 INFO L550 ElimStorePlain]: Start of recursive call 270: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:18,054 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:18,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-03-10 22:51:18,056 INFO L550 ElimStorePlain]: Start of recursive call 271: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:18,138 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:18,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-03-10 22:51:18,140 INFO L550 ElimStorePlain]: Start of recursive call 272: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:18,231 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:18,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:18,234 INFO L550 ElimStorePlain]: Start of recursive call 273: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:18,323 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:18,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-03-10 22:51:18,325 INFO L550 ElimStorePlain]: Start of recursive call 274: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:18,408 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:18,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 68 [2021-03-10 22:51:18,410 INFO L550 ElimStorePlain]: Start of recursive call 275: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:18,493 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:18,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-03-10 22:51:18,496 INFO L550 ElimStorePlain]: Start of recursive call 276: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:18,582 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:18,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:51:18,584 INFO L550 ElimStorePlain]: Start of recursive call 277: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:18,673 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:18,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-03-10 22:51:18,676 INFO L550 ElimStorePlain]: Start of recursive call 278: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:18,764 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:18,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 64 [2021-03-10 22:51:18,767 INFO L550 ElimStorePlain]: Start of recursive call 279: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:18,856 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:18,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:18,858 INFO L550 ElimStorePlain]: Start of recursive call 280: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:18,945 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:18,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:51:18,948 INFO L550 ElimStorePlain]: Start of recursive call 281: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:19,030 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:19,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:19,032 INFO L550 ElimStorePlain]: Start of recursive call 282: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:19,116 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:19,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:19,118 INFO L550 ElimStorePlain]: Start of recursive call 283: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:19,182 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:19,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 187 treesize of output 58 [2021-03-10 22:51:19,185 INFO L550 ElimStorePlain]: Start of recursive call 284: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:19,267 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:19,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-03-10 22:51:19,270 INFO L550 ElimStorePlain]: Start of recursive call 285: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:19,353 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:19,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 66 [2021-03-10 22:51:19,355 INFO L550 ElimStorePlain]: Start of recursive call 286: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:19,420 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:19,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 191 treesize of output 54 [2021-03-10 22:51:19,422 INFO L550 ElimStorePlain]: Start of recursive call 287: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:19,505 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:19,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:51:19,507 INFO L550 ElimStorePlain]: Start of recursive call 288: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:19,592 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:19,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-03-10 22:51:19,594 INFO L550 ElimStorePlain]: Start of recursive call 289: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:19,677 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:19,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-03-10 22:51:19,680 INFO L550 ElimStorePlain]: Start of recursive call 290: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:19,763 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:19,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:51:19,765 INFO L550 ElimStorePlain]: Start of recursive call 291: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:19,848 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:19,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-03-10 22:51:19,851 INFO L550 ElimStorePlain]: Start of recursive call 292: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:19,935 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:19,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 67 [2021-03-10 22:51:19,937 INFO L550 ElimStorePlain]: Start of recursive call 293: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:20,021 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:20,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 69 [2021-03-10 22:51:20,023 INFO L550 ElimStorePlain]: Start of recursive call 294: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:20,105 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:20,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-03-10 22:51:20,107 INFO L550 ElimStorePlain]: Start of recursive call 295: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:20,188 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:20,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-03-10 22:51:20,191 INFO L550 ElimStorePlain]: Start of recursive call 296: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:20,277 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:20,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 61 [2021-03-10 22:51:20,279 INFO L550 ElimStorePlain]: Start of recursive call 297: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:20,348 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:20,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 209 treesize of output 60 [2021-03-10 22:51:20,350 INFO L550 ElimStorePlain]: Start of recursive call 298: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:20,440 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:20,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 64 [2021-03-10 22:51:20,443 INFO L550 ElimStorePlain]: Start of recursive call 299: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:20,507 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:20,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 179 treesize of output 52 [2021-03-10 22:51:20,509 INFO L550 ElimStorePlain]: Start of recursive call 300: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:20,595 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:20,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-03-10 22:51:20,598 INFO L550 ElimStorePlain]: Start of recursive call 301: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:20,683 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:20,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:20,685 INFO L550 ElimStorePlain]: Start of recursive call 302: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:20,776 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:20,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 60 [2021-03-10 22:51:20,778 INFO L550 ElimStorePlain]: Start of recursive call 303: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:20,865 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:20,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:20,867 INFO L550 ElimStorePlain]: Start of recursive call 304: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:20,949 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:20,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 60 [2021-03-10 22:51:20,951 INFO L550 ElimStorePlain]: Start of recursive call 305: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:21,030 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:21,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 68 [2021-03-10 22:51:21,033 INFO L550 ElimStorePlain]: Start of recursive call 306: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:21,114 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:21,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:21,117 INFO L550 ElimStorePlain]: Start of recursive call 307: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:21,198 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:21,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-03-10 22:51:21,201 INFO L550 ElimStorePlain]: Start of recursive call 308: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:21,280 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:21,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 68 [2021-03-10 22:51:21,283 INFO L550 ElimStorePlain]: Start of recursive call 309: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:21,362 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:21,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-03-10 22:51:21,364 INFO L550 ElimStorePlain]: Start of recursive call 310: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:21,444 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:21,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-03-10 22:51:21,446 INFO L550 ElimStorePlain]: Start of recursive call 311: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:21,527 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:21,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:21,530 INFO L550 ElimStorePlain]: Start of recursive call 312: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:21,609 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:21,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-03-10 22:51:21,611 INFO L550 ElimStorePlain]: Start of recursive call 313: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:21,693 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:21,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-03-10 22:51:21,696 INFO L550 ElimStorePlain]: Start of recursive call 314: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:21,757 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:21,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 175 treesize of output 56 [2021-03-10 22:51:21,759 INFO L550 ElimStorePlain]: Start of recursive call 315: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:21,820 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:21,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 177 treesize of output 54 [2021-03-10 22:51:21,822 INFO L550 ElimStorePlain]: Start of recursive call 316: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:21,900 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:21,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-03-10 22:51:21,903 INFO L550 ElimStorePlain]: Start of recursive call 317: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:21,961 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:21,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 172 treesize of output 53 [2021-03-10 22:51:21,963 INFO L550 ElimStorePlain]: Start of recursive call 318: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:22,046 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:22,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-03-10 22:51:22,049 INFO L550 ElimStorePlain]: Start of recursive call 319: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:22,153 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:22,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:22,156 INFO L550 ElimStorePlain]: Start of recursive call 320: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:22,230 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:22,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 182 treesize of output 55 [2021-03-10 22:51:22,233 INFO L550 ElimStorePlain]: Start of recursive call 321: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:22,336 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:22,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-03-10 22:51:22,338 INFO L550 ElimStorePlain]: Start of recursive call 322: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:22,415 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:22,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-03-10 22:51:22,417 INFO L550 ElimStorePlain]: Start of recursive call 323: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:22,502 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:22,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-03-10 22:51:22,505 INFO L550 ElimStorePlain]: Start of recursive call 324: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:22,591 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:22,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 62 [2021-03-10 22:51:22,594 INFO L550 ElimStorePlain]: Start of recursive call 325: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:22,679 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:22,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-03-10 22:51:22,682 INFO L550 ElimStorePlain]: Start of recursive call 326: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:22,742 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:22,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 180 treesize of output 57 [2021-03-10 22:51:22,745 INFO L550 ElimStorePlain]: Start of recursive call 327: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:22,850 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:22,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 67 [2021-03-10 22:51:22,853 INFO L550 ElimStorePlain]: Start of recursive call 328: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:22,909 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:22,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 68 [2021-03-10 22:51:22,911 INFO L550 ElimStorePlain]: Start of recursive call 329: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:22,967 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:22,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-03-10 22:51:22,969 INFO L550 ElimStorePlain]: Start of recursive call 330: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:23,024 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:23,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-03-10 22:51:23,026 INFO L550 ElimStorePlain]: Start of recursive call 331: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:23,081 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:23,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 61 [2021-03-10 22:51:23,083 INFO L550 ElimStorePlain]: Start of recursive call 332: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:23,138 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:23,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-03-10 22:51:23,140 INFO L550 ElimStorePlain]: Start of recursive call 333: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:23,196 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:23,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-03-10 22:51:23,199 INFO L550 ElimStorePlain]: Start of recursive call 334: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:23,260 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:23,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 67 [2021-03-10 22:51:23,263 INFO L550 ElimStorePlain]: Start of recursive call 335: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:23,337 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-03-10 22:51:23,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-03-10 22:51:23,339 INFO L550 ElimStorePlain]: Start of recursive call 336: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:23,348 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:23,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 194 treesize of output 57 [2021-03-10 22:51:23,351 INFO L550 ElimStorePlain]: Start of recursive call 337: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:23,378 INFO L628 ElimStorePlain]: treesize reduction 38, result has 7.3 percent of original size [2021-03-10 22:51:23,379 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:51:23,379 INFO L247 ElimStorePlain]: Needed 337 recursive calls to eliminate 2 variables, input treesize:62417, output treesize:3 [2021-03-10 22:51:23,396 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:51:23,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:51:23,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16] total 23 [2021-03-10 22:51:23,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118750696] [2021-03-10 22:51:23,396 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-10 22:51:23,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:51:23,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-10 22:51:23,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2021-03-10 22:51:23,397 INFO L87 Difference]: Start difference. First operand 54544 states and 139665 transitions. Second operand has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:51:24,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:51:24,449 INFO L93 Difference]: Finished difference Result 57076 states and 146192 transitions. [2021-03-10 22:51:24,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 22:51:24,450 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-03-10 22:51:24,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:51:24,564 INFO L225 Difference]: With dead ends: 57076 [2021-03-10 22:51:24,564 INFO L226 Difference]: Without dead ends: 57046 [2021-03-10 22:51:24,564 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 4567.5ms TimeCoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2021-03-10 22:51:24,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57046 states. [2021-03-10 22:51:25,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57046 to 55615. [2021-03-10 22:51:25,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55615 states, 55614 states have (on average 2.5645700722839573) internal successors, (142626), 55614 states have internal predecessors, (142626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:51:25,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55615 states to 55615 states and 142626 transitions. [2021-03-10 22:51:25,711 INFO L78 Accepts]: Start accepts. Automaton has 55615 states and 142626 transitions. Word has length 42 [2021-03-10 22:51:25,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:51:25,711 INFO L480 AbstractCegarLoop]: Abstraction has 55615 states and 142626 transitions. [2021-03-10 22:51:25,711 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:51:25,711 INFO L276 IsEmpty]: Start isEmpty. Operand 55615 states and 142626 transitions. [2021-03-10 22:51:25,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-03-10 22:51:25,748 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:51:25,748 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:51:25,959 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5746,142 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:51:25,959 INFO L428 AbstractCegarLoop]: === Iteration 147 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:51:25,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:51:25,960 INFO L82 PathProgramCache]: Analyzing trace with hash -689351820, now seen corresponding path program 142 times [2021-03-10 22:51:25,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:51:25,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865717861] [2021-03-10 22:51:25,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:51:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:51:26,040 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:51:26,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865717861] [2021-03-10 22:51:26,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186321084] [2021-03-10 22:51:26,041 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 143 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 143 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:51:26,065 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 22:51:26,066 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:51:26,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 45 conjunts are in the unsatisfiable core [2021-03-10 22:51:26,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:51:26,503 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2021-03-10 22:51:26,503 INFO L354 Elim1Store]: treesize reduction 72, result has 60.2 percent of original size [2021-03-10 22:51:26,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 177 treesize of output 163 [2021-03-10 22:51:26,508 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:26,607 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:51:26,608 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:51:26,608 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:177, output treesize:432 [2021-03-10 22:51:27,053 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-03-10 22:51:28,663 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 34 [2021-03-10 22:51:29,171 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2021-03-10 22:51:30,475 WARN L205 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 621 DAG size of output: 621 [2021-03-10 22:51:32,322 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 1196 [2021-03-10 22:51:33,473 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1196 [2021-03-10 22:51:35,149 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1196 [2021-03-10 22:51:53,536 WARN L205 SmtUtils]: Spent 12.36 s on a formula simplification. DAG size of input: 1196 DAG size of output: 58 [2021-03-10 22:51:54,972 INFO L446 ElimStorePlain]: Different costs {15=[v_prenex_161], 21=[v_prenex_160, v_prenex_162, f, v_prenex_157, v_prenex_158, v_prenex_159]} [2021-03-10 22:51:54,986 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-03-10 22:51:54,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 239 treesize of output 58 [2021-03-10 22:51:54,988 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:55,290 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 108 [2021-03-10 22:51:55,291 INFO L628 ElimStorePlain]: treesize reduction 901, result has 35.0 percent of original size [2021-03-10 22:51:55,382 INFO L354 Elim1Store]: treesize reduction 139, result has 17.8 percent of original size [2021-03-10 22:51:55,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 58 treesize of output 58 [2021-03-10 22:51:55,385 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:55,481 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:51:55,531 INFO L354 Elim1Store]: treesize reduction 111, result has 8.3 percent of original size [2021-03-10 22:51:55,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 79 treesize of output 41 [2021-03-10 22:51:55,533 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:55,623 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:51:55,827 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 50 [2021-03-10 22:51:55,827 INFO L354 Elim1Store]: treesize reduction 84, result has 50.3 percent of original size [2021-03-10 22:51:55,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 109 treesize of output 130 [2021-03-10 22:51:55,832 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:55,904 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:51:56,049 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 37 [2021-03-10 22:51:56,050 INFO L354 Elim1Store]: treesize reduction 113, result has 33.1 percent of original size [2021-03-10 22:51:56,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 84 treesize of output 88 [2021-03-10 22:51:56,053 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:56,116 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:51:56,188 INFO L354 Elim1Store]: treesize reduction 151, result has 10.7 percent of original size [2021-03-10 22:51:56,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 85 treesize of output 49 [2021-03-10 22:51:56,190 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:56,243 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:51:56,332 INFO L354 Elim1Store]: treesize reduction 81, result has 33.1 percent of original size [2021-03-10 22:51:56,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 62 treesize of output 68 [2021-03-10 22:51:56,335 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-03-10 22:51:56,378 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:51:56,385 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 7 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:51:56,385 INFO L247 ElimStorePlain]: Needed 8 recursive calls to eliminate 14 variables, input treesize:1618, output treesize:3 [2021-03-10 22:51:56,401 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:51:56,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:51:56,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16] total 23 [2021-03-10 22:51:56,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467386448] [2021-03-10 22:51:56,401 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-10 22:51:56,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:51:56,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-10 22:51:56,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=450, Unknown=1, NotChecked=0, Total=506 [2021-03-10 22:51:56,402 INFO L87 Difference]: Start difference. First operand 55615 states and 142626 transitions. Second operand has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:51:57,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:51:57,864 INFO L93 Difference]: Finished difference Result 58151 states and 148884 transitions. [2021-03-10 22:51:57,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-10 22:51:57,866 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-03-10 22:51:57,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:51:57,968 INFO L225 Difference]: With dead ends: 58151 [2021-03-10 22:51:57,968 INFO L226 Difference]: Without dead ends: 58110 [2021-03-10 22:51:57,968 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 19663.6ms TimeCoverageRelationStatistics Valid=55, Invalid=450, Unknown=1, NotChecked=0, Total=506 [2021-03-10 22:51:58,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58110 states. [2021-03-10 22:51:58,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58110 to 56750. [2021-03-10 22:51:59,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56750 states, 56749 states have (on average 2.5700364764136814) internal successors, (145847), 56749 states have internal predecessors, (145847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:51:59,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56750 states to 56750 states and 145847 transitions. [2021-03-10 22:51:59,134 INFO L78 Accepts]: Start accepts. Automaton has 56750 states and 145847 transitions. Word has length 42 [2021-03-10 22:51:59,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:51:59,134 INFO L480 AbstractCegarLoop]: Abstraction has 56750 states and 145847 transitions. [2021-03-10 22:51:59,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:51:59,134 INFO L276 IsEmpty]: Start isEmpty. Operand 56750 states and 145847 transitions. [2021-03-10 22:51:59,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-03-10 22:51:59,173 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:51:59,173 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:51:59,373 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 143 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8195 [2021-03-10 22:51:59,373 INFO L428 AbstractCegarLoop]: === Iteration 148 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:51:59,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:51:59,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1940096396, now seen corresponding path program 143 times [2021-03-10 22:51:59,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:51:59,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326737723] [2021-03-10 22:51:59,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:51:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:51:59,459 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:51:59,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326737723] [2021-03-10 22:51:59,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238832587] [2021-03-10 22:51:59,459 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 144 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 144 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:51:59,485 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-03-10 22:51:59,485 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:51:59,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 53 conjunts are in the unsatisfiable core [2021-03-10 22:51:59,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:52:00,169 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 65 [2021-03-10 22:52:00,169 INFO L354 Elim1Store]: treesize reduction 128, result has 43.1 percent of original size [2021-03-10 22:52:00,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 15 new quantified variables, introduced 28 case distinctions, treesize of input 206 treesize of output 181 [2021-03-10 22:52:00,708 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 38 [2021-03-10 22:52:03,387 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-10 22:52:05,008 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 22:52:05,107 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:52:07,306 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 22:52:07,306 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:206, output treesize:433 [2021-03-10 22:52:11,722 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2021-03-10 22:52:12,854 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 621 DAG size of output: 621 [2021-03-10 22:52:14,609 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 1196 [2021-03-10 22:52:15,732 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1196 [2021-03-10 22:52:17,407 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1196 [2021-03-10 22:52:27,985 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2021-03-10 22:52:29,103 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 621 DAG size of output: 621 [2021-03-10 22:52:30,845 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 1196 [2021-03-10 22:52:32,021 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 1196 [2021-03-10 22:52:33,741 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1196 [2021-03-10 22:52:52,917 WARN L205 SmtUtils]: Spent 12.41 s on a formula simplification. DAG size of input: 1196 DAG size of output: 58 [2021-03-10 22:52:53,539 INFO L354 Elim1Store]: treesize reduction 141, result has 16.6 percent of original size [2021-03-10 22:52:53,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 228 treesize of output 99 [2021-03-10 22:52:53,542 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 22:52:53,803 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 108 [2021-03-10 22:52:53,803 INFO L628 ElimStorePlain]: treesize reduction 871, result has 36.4 percent of original size [2021-03-10 22:52:53,877 INFO L354 Elim1Store]: treesize reduction 151, result has 10.7 percent of original size [2021-03-10 22:52:53,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 91 treesize of output 52 [2021-03-10 22:52:53,879 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 22:52:53,972 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:52:54,090 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 31 [2021-03-10 22:52:54,091 INFO L354 Elim1Store]: treesize reduction 126, result has 25.4 percent of original size [2021-03-10 22:52:54,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 72 treesize of output 74 [2021-03-10 22:52:54,093 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 22:52:54,173 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:52:54,240 INFO L354 Elim1Store]: treesize reduction 153, result has 9.5 percent of original size [2021-03-10 22:52:54,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 69 treesize of output 46 [2021-03-10 22:52:54,242 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 22:52:54,314 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 22:52:54,495 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 50 [2021-03-10 22:52:54,496 INFO L354 Elim1Store]: treesize reduction 84, result has 50.3 percent of original size [2021-03-10 22:52:54,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 101 treesize of output 133 [2021-03-10 22:52:54,501 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-10 22:52:54,519 INFO L628 ElimStorePlain]: treesize reduction 189, result has 1.6 percent of original size [2021-03-10 22:52:54,519 INFO L518 ElimStorePlain]: Eliminatee v_prenex_178 vanished before elimination [2021-03-10 22:52:54,519 INFO L518 ElimStorePlain]: Eliminatee v_prenex_179 vanished before elimination [2021-03-10 22:52:54,520 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 7 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 22:52:54,520 INFO L247 ElimStorePlain]: Needed 6 recursive calls to eliminate 14 variables, input treesize:1590, output treesize:3 [2021-03-10 22:52:54,534 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-10 22:52:54,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:52:54,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16] total 23 [2021-03-10 22:52:54,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847806580] [2021-03-10 22:52:54,535 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-10 22:52:54,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:52:54,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-10 22:52:54,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=447, Unknown=1, NotChecked=0, Total=506 [2021-03-10 22:52:54,535 INFO L87 Difference]: Start difference. First operand 56750 states and 145847 transitions. Second operand has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:52:55,502 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2021-03-10 22:52:55,782 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 232 [2021-03-10 22:52:56,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:52:56,352 INFO L93 Difference]: Finished difference Result 58133 states and 149157 transitions. [2021-03-10 22:52:56,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-10 22:52:56,353 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-03-10 22:52:56,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:52:56,468 INFO L225 Difference]: With dead ends: 58133 [2021-03-10 22:52:56,468 INFO L226 Difference]: Without dead ends: 58126 [2021-03-10 22:52:56,469 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 29106.0ms TimeCoverageRelationStatistics Valid=73, Invalid=576, Unknown=1, NotChecked=0, Total=650 [2021-03-10 22:52:56,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58126 states. [2021-03-10 22:52:57,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58126 to 57370. [2021-03-10 22:52:57,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57370 states, 57369 states have (on average 2.572748348411163) internal successors, (147596), 57369 states have internal predecessors, (147596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:52:57,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57370 states to 57370 states and 147596 transitions. [2021-03-10 22:52:57,451 INFO L78 Accepts]: Start accepts. Automaton has 57370 states and 147596 transitions. Word has length 42 [2021-03-10 22:52:57,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:52:57,451 INFO L480 AbstractCegarLoop]: Abstraction has 57370 states and 147596 transitions. [2021-03-10 22:52:57,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:52:57,451 INFO L276 IsEmpty]: Start isEmpty. Operand 57370 states and 147596 transitions. [2021-03-10 22:52:57,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-03-10 22:52:57,487 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:52:57,487 INFO L519 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:52:57,689 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 144 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8776 [2021-03-10 22:52:57,689 INFO L428 AbstractCegarLoop]: === Iteration 149 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:52:57,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:52:57,689 INFO L82 PathProgramCache]: Analyzing trace with hash -2129488650, now seen corresponding path program 144 times [2021-03-10 22:52:57,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:52:57,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906028657] [2021-03-10 22:52:57,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:52:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:52:58,013 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 49 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:52:58,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906028657] [2021-03-10 22:52:58,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487292433] [2021-03-10 22:52:58,014 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 145 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 145 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:52:58,040 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2021-03-10 22:52:58,041 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:52:58,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-10 22:52:58,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:52:58,802 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 49 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:52:58,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:52:58,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19] total 37 [2021-03-10 22:52:58,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85164028] [2021-03-10 22:52:58,802 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-03-10 22:52:58,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:52:58,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-03-10 22:52:58,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=1143, Unknown=0, NotChecked=0, Total=1406 [2021-03-10 22:52:58,803 INFO L87 Difference]: Start difference. First operand 57370 states and 147596 transitions. Second operand has 38 states, 38 states have (on average 2.1578947368421053) internal successors, (82), 37 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:53:03,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:53:03,646 INFO L93 Difference]: Finished difference Result 61578 states and 156735 transitions. [2021-03-10 22:53:03,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2021-03-10 22:53:03,647 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 2.1578947368421053) internal successors, (82), 37 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-03-10 22:53:03,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:53:03,753 INFO L225 Difference]: With dead ends: 61578 [2021-03-10 22:53:03,753 INFO L226 Difference]: Without dead ends: 61578 [2021-03-10 22:53:03,755 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5718 ImplicationChecksByTransitivity, 4245.8ms TimeCoverageRelationStatistics Valid=4657, Invalid=13165, Unknown=0, NotChecked=0, Total=17822 [2021-03-10 22:53:03,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61578 states. [2021-03-10 22:53:04,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61578 to 54115. [2021-03-10 22:53:04,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54115 states, 54114 states have (on average 2.5670066895812544) internal successors, (138911), 54114 states have internal predecessors, (138911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:53:05,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54115 states to 54115 states and 138911 transitions. [2021-03-10 22:53:05,085 INFO L78 Accepts]: Start accepts. Automaton has 54115 states and 138911 transitions. Word has length 44 [2021-03-10 22:53:05,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:53:05,085 INFO L480 AbstractCegarLoop]: Abstraction has 54115 states and 138911 transitions. [2021-03-10 22:53:05,085 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 2.1578947368421053) internal successors, (82), 37 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:53:05,085 INFO L276 IsEmpty]: Start isEmpty. Operand 54115 states and 138911 transitions. [2021-03-10 22:53:05,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-03-10 22:53:05,127 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:53:05,127 INFO L519 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:53:05,327 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 145 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12229 [2021-03-10 22:53:05,327 INFO L428 AbstractCegarLoop]: === Iteration 150 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:53:05,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:53:05,328 INFO L82 PathProgramCache]: Analyzing trace with hash 768782642, now seen corresponding path program 145 times [2021-03-10 22:53:05,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:53:05,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092409470] [2021-03-10 22:53:05,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:53:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:53:05,634 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 64 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:53:05,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092409470] [2021-03-10 22:53:05,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489464239] [2021-03-10 22:53:05,635 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 146 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 146 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:53:05,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:53:05,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-10 22:53:05,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:53:06,452 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 64 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:53:06,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:53:06,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2021-03-10 22:53:06,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725288231] [2021-03-10 22:53:06,453 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-03-10 22:53:06,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:53:06,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-03-10 22:53:06,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=1107, Unknown=0, NotChecked=0, Total=1332 [2021-03-10 22:53:06,453 INFO L87 Difference]: Start difference. First operand 54115 states and 138911 transitions. Second operand has 37 states, 37 states have (on average 2.1621621621621623) internal successors, (80), 36 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:53:15,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:53:15,190 INFO L93 Difference]: Finished difference Result 71421 states and 180739 transitions. [2021-03-10 22:53:15,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 164 states. [2021-03-10 22:53:15,192 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 2.1621621621621623) internal successors, (80), 36 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-03-10 22:53:15,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:53:15,320 INFO L225 Difference]: With dead ends: 71421 [2021-03-10 22:53:15,320 INFO L226 Difference]: Without dead ends: 71182 [2021-03-10 22:53:15,324 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12672 ImplicationChecksByTransitivity, 8218.0ms TimeCoverageRelationStatistics Valid=7124, Invalid=28032, Unknown=0, NotChecked=0, Total=35156 [2021-03-10 22:53:15,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71182 states. [2021-03-10 22:53:16,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71182 to 55547. [2021-03-10 22:53:16,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55547 states, 55546 states have (on average 2.5671335469700787) internal successors, (142594), 55546 states have internal predecessors, (142594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:53:16,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55547 states to 55547 states and 142594 transitions. [2021-03-10 22:53:16,791 INFO L78 Accepts]: Start accepts. Automaton has 55547 states and 142594 transitions. Word has length 44 [2021-03-10 22:53:16,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:53:16,791 INFO L480 AbstractCegarLoop]: Abstraction has 55547 states and 142594 transitions. [2021-03-10 22:53:16,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 2.1621621621621623) internal successors, (80), 36 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:53:16,792 INFO L276 IsEmpty]: Start isEmpty. Operand 55547 states and 142594 transitions. [2021-03-10 22:53:16,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-03-10 22:53:16,830 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:53:16,830 INFO L519 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:53:17,030 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12230,146 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:53:17,031 INFO L428 AbstractCegarLoop]: === Iteration 151 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:53:17,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:53:17,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1205657702, now seen corresponding path program 146 times [2021-03-10 22:53:17,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:53:17,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068151850] [2021-03-10 22:53:17,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:53:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:53:17,223 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 64 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:53:17,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068151850] [2021-03-10 22:53:17,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949718340] [2021-03-10 22:53:17,224 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 147 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 147 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:53:17,248 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 22:53:17,248 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:53:17,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-10 22:53:17,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:53:18,018 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 64 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:53:18,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:53:18,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 19] total 29 [2021-03-10 22:53:18,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487561465] [2021-03-10 22:53:18,018 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-03-10 22:53:18,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:53:18,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-03-10 22:53:18,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=722, Unknown=0, NotChecked=0, Total=870 [2021-03-10 22:53:18,019 INFO L87 Difference]: Start difference. First operand 55547 states and 142594 transitions. Second operand has 30 states, 30 states have (on average 2.6) internal successors, (78), 29 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:53:26,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:53:26,077 INFO L93 Difference]: Finished difference Result 94822 states and 241988 transitions. [2021-03-10 22:53:26,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2021-03-10 22:53:26,079 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.6) internal successors, (78), 29 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-03-10 22:53:26,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:53:26,251 INFO L225 Difference]: With dead ends: 94822 [2021-03-10 22:53:26,251 INFO L226 Difference]: Without dead ends: 94798 [2021-03-10 22:53:26,252 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11051 ImplicationChecksByTransitivity, 6594.5ms TimeCoverageRelationStatistics Valid=7112, Invalid=20610, Unknown=0, NotChecked=0, Total=27722 [2021-03-10 22:53:26,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94798 states. [2021-03-10 22:53:27,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94798 to 72019. [2021-03-10 22:53:27,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72019 states, 72018 states have (on average 2.5672054208670056) internal successors, (184885), 72018 states have internal predecessors, (184885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:53:27,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72019 states to 72019 states and 184885 transitions. [2021-03-10 22:53:27,609 INFO L78 Accepts]: Start accepts. Automaton has 72019 states and 184885 transitions. Word has length 44 [2021-03-10 22:53:27,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:53:27,609 INFO L480 AbstractCegarLoop]: Abstraction has 72019 states and 184885 transitions. [2021-03-10 22:53:27,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.6) internal successors, (78), 29 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:53:27,610 INFO L276 IsEmpty]: Start isEmpty. Operand 72019 states and 184885 transitions. [2021-03-10 22:53:27,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-03-10 22:53:27,652 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:53:27,652 INFO L519 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:53:27,852 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12231,147 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:53:27,852 INFO L428 AbstractCegarLoop]: === Iteration 152 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:53:27,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:53:27,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1705411512, now seen corresponding path program 147 times [2021-03-10 22:53:27,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:53:27,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591179931] [2021-03-10 22:53:27,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:53:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:53:28,183 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2021-03-10 22:53:28,366 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 57 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:53:28,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591179931] [2021-03-10 22:53:28,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296227870] [2021-03-10 22:53:28,366 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 148 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 148 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:53:28,395 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-03-10 22:53:28,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:53:28,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-10 22:53:28,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:53:29,272 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 57 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:53:29,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:53:29,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 19] total 29 [2021-03-10 22:53:29,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534421768] [2021-03-10 22:53:29,272 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-03-10 22:53:29,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:53:29,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-03-10 22:53:29,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=679, Unknown=0, NotChecked=0, Total=870 [2021-03-10 22:53:29,273 INFO L87 Difference]: Start difference. First operand 72019 states and 184885 transitions. Second operand has 30 states, 30 states have (on average 2.6) internal successors, (78), 29 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:53:30,728 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 11 [2021-03-10 22:53:35,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:53:35,326 INFO L93 Difference]: Finished difference Result 73486 states and 187932 transitions. [2021-03-10 22:53:35,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-03-10 22:53:35,328 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.6) internal successors, (78), 29 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-03-10 22:53:35,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:53:35,461 INFO L225 Difference]: With dead ends: 73486 [2021-03-10 22:53:35,461 INFO L226 Difference]: Without dead ends: 73482 [2021-03-10 22:53:35,467 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5767 ImplicationChecksByTransitivity, 5994.4ms TimeCoverageRelationStatistics Valid=3791, Invalid=12211, Unknown=0, NotChecked=0, Total=16002 [2021-03-10 22:53:35,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73482 states. [2021-03-10 22:53:36,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73482 to 72019. [2021-03-10 22:53:36,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72019 states, 72018 states have (on average 2.5667610875059013) internal successors, (184853), 72018 states have internal predecessors, (184853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:53:36,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72019 states to 72019 states and 184853 transitions. [2021-03-10 22:53:36,751 INFO L78 Accepts]: Start accepts. Automaton has 72019 states and 184853 transitions. Word has length 44 [2021-03-10 22:53:36,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:53:36,751 INFO L480 AbstractCegarLoop]: Abstraction has 72019 states and 184853 transitions. [2021-03-10 22:53:36,751 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.6) internal successors, (78), 29 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:53:36,751 INFO L276 IsEmpty]: Start isEmpty. Operand 72019 states and 184853 transitions. [2021-03-10 22:53:36,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-03-10 22:53:36,795 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:53:36,795 INFO L519 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:53:36,995 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12232,148 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:53:36,995 INFO L428 AbstractCegarLoop]: === Iteration 153 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:53:36,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:53:36,996 INFO L82 PathProgramCache]: Analyzing trace with hash 823415346, now seen corresponding path program 148 times [2021-03-10 22:53:36,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:53:36,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033489184] [2021-03-10 22:53:36,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:53:36,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:53:37,194 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 69 proven. 43 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:53:37,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033489184] [2021-03-10 22:53:37,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051914888] [2021-03-10 22:53:37,194 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 149 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 149 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:53:37,218 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 22:53:37,218 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:53:37,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-10 22:53:37,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:53:37,975 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 57 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:53:37,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:53:37,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 19] total 29 [2021-03-10 22:53:37,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592119076] [2021-03-10 22:53:37,975 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-03-10 22:53:37,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:53:37,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-03-10 22:53:37,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=724, Unknown=0, NotChecked=0, Total=870 [2021-03-10 22:53:37,976 INFO L87 Difference]: Start difference. First operand 72019 states and 184853 transitions. Second operand has 30 states, 30 states have (on average 2.6666666666666665) internal successors, (80), 29 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:53:40,209 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 10 [2021-03-10 22:53:41,460 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 10 [2021-03-10 22:53:43,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:53:43,223 INFO L93 Difference]: Finished difference Result 89850 states and 230059 transitions. [2021-03-10 22:53:43,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-03-10 22:53:43,225 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.6666666666666665) internal successors, (80), 29 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-03-10 22:53:43,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:53:43,406 INFO L225 Difference]: With dead ends: 89850 [2021-03-10 22:53:43,406 INFO L226 Difference]: Without dead ends: 89823 [2021-03-10 22:53:43,407 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3652 ImplicationChecksByTransitivity, 4354.9ms TimeCoverageRelationStatistics Valid=2745, Invalid=8385, Unknown=0, NotChecked=0, Total=11130 [2021-03-10 22:53:43,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89823 states. [2021-03-10 22:53:44,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89823 to 71875. [2021-03-10 22:53:45,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71875 states, 71874 states have (on average 2.574004507888805) internal successors, (185004), 71874 states have internal predecessors, (185004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:53:45,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71875 states to 71875 states and 185004 transitions. [2021-03-10 22:53:45,449 INFO L78 Accepts]: Start accepts. Automaton has 71875 states and 185004 transitions. Word has length 44 [2021-03-10 22:53:45,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:53:45,450 INFO L480 AbstractCegarLoop]: Abstraction has 71875 states and 185004 transitions. [2021-03-10 22:53:45,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.6666666666666665) internal successors, (80), 29 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:53:45,450 INFO L276 IsEmpty]: Start isEmpty. Operand 71875 states and 185004 transitions. [2021-03-10 22:53:45,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-03-10 22:53:45,502 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:53:45,502 INFO L519 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:53:45,724 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 149 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12233 [2021-03-10 22:53:45,724 INFO L428 AbstractCegarLoop]: === Iteration 154 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:53:45,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:53:45,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1963210434, now seen corresponding path program 149 times [2021-03-10 22:53:45,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:53:45,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936190846] [2021-03-10 22:53:45,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:53:45,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:53:45,975 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 51 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:53:45,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936190846] [2021-03-10 22:53:45,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127158496] [2021-03-10 22:53:45,975 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 150 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 150 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:53:46,003 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-03-10 22:53:46,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:53:46,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-10 22:53:46,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:53:46,975 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 51 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:53:46,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:53:46,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 19] total 30 [2021-03-10 22:53:46,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102589991] [2021-03-10 22:53:46,975 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-03-10 22:53:46,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:53:46,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-03-10 22:53:46,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=744, Unknown=0, NotChecked=0, Total=930 [2021-03-10 22:53:46,976 INFO L87 Difference]: Start difference. First operand 71875 states and 185004 transitions. Second operand has 31 states, 31 states have (on average 2.5161290322580645) internal successors, (78), 30 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:53:53,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:53:53,970 INFO L93 Difference]: Finished difference Result 76106 states and 194599 transitions. [2021-03-10 22:53:53,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2021-03-10 22:53:53,971 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.5161290322580645) internal successors, (78), 30 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-03-10 22:53:53,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:53:54,109 INFO L225 Difference]: With dead ends: 76106 [2021-03-10 22:53:54,109 INFO L226 Difference]: Without dead ends: 76084 [2021-03-10 22:53:54,110 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5971 ImplicationChecksByTransitivity, 6119.0ms TimeCoverageRelationStatistics Valid=3872, Invalid=12640, Unknown=0, NotChecked=0, Total=16512 [2021-03-10 22:53:54,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76084 states. [2021-03-10 22:53:55,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76084 to 73137. [2021-03-10 22:53:55,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73137 states, 73136 states have (on average 2.575434806388099) internal successors, (188357), 73136 states have internal predecessors, (188357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:53:55,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73137 states to 73137 states and 188357 transitions. [2021-03-10 22:53:55,897 INFO L78 Accepts]: Start accepts. Automaton has 73137 states and 188357 transitions. Word has length 44 [2021-03-10 22:53:55,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:53:55,897 INFO L480 AbstractCegarLoop]: Abstraction has 73137 states and 188357 transitions. [2021-03-10 22:53:55,898 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 2.5161290322580645) internal successors, (78), 30 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:53:55,898 INFO L276 IsEmpty]: Start isEmpty. Operand 73137 states and 188357 transitions. [2021-03-10 22:53:55,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-03-10 22:53:55,945 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:53:55,945 INFO L519 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:53:56,145 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 150 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12234 [2021-03-10 22:53:56,145 INFO L428 AbstractCegarLoop]: === Iteration 155 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:53:56,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:53:56,146 INFO L82 PathProgramCache]: Analyzing trace with hash -637321666, now seen corresponding path program 150 times [2021-03-10 22:53:56,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:53:56,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635566415] [2021-03-10 22:53:56,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:53:56,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:53:56,416 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 42 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:53:56,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635566415] [2021-03-10 22:53:56,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249089052] [2021-03-10 22:53:56,417 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 151 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 151 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:53:56,445 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2021-03-10 22:53:56,445 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:53:56,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-10 22:53:56,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:53:57,494 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 42 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:53:57,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:53:57,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 19] total 31 [2021-03-10 22:53:57,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083932895] [2021-03-10 22:53:57,495 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-03-10 22:53:57,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:53:57,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-03-10 22:53:57,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=807, Unknown=0, NotChecked=0, Total=992 [2021-03-10 22:53:57,495 INFO L87 Difference]: Start difference. First operand 73137 states and 188357 transitions. Second operand has 32 states, 32 states have (on average 2.4375) internal successors, (78), 31 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:53:58,652 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 10 [2021-03-10 22:54:05,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:54:05,119 INFO L93 Difference]: Finished difference Result 78532 states and 200306 transitions. [2021-03-10 22:54:05,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-03-10 22:54:05,121 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.4375) internal successors, (78), 31 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-03-10 22:54:05,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:54:05,273 INFO L225 Difference]: With dead ends: 78532 [2021-03-10 22:54:05,273 INFO L226 Difference]: Without dead ends: 78486 [2021-03-10 22:54:05,274 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6281 ImplicationChecksByTransitivity, 6690.1ms TimeCoverageRelationStatistics Valid=3964, Invalid=13066, Unknown=0, NotChecked=0, Total=17030 [2021-03-10 22:54:05,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78486 states. [2021-03-10 22:54:06,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78486 to 73094. [2021-03-10 22:54:06,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73094 states, 73093 states have (on average 2.579768240460783) internal successors, (188563), 73093 states have internal predecessors, (188563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:54:06,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73094 states to 73094 states and 188563 transitions. [2021-03-10 22:54:06,979 INFO L78 Accepts]: Start accepts. Automaton has 73094 states and 188563 transitions. Word has length 44 [2021-03-10 22:54:06,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:54:06,979 INFO L480 AbstractCegarLoop]: Abstraction has 73094 states and 188563 transitions. [2021-03-10 22:54:06,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 2.4375) internal successors, (78), 31 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:54:06,979 INFO L276 IsEmpty]: Start isEmpty. Operand 73094 states and 188563 transitions. [2021-03-10 22:54:07,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-03-10 22:54:07,028 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:54:07,028 INFO L519 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:54:07,228 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 151 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12235 [2021-03-10 22:54:07,228 INFO L428 AbstractCegarLoop]: === Iteration 156 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:54:07,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:54:07,228 INFO L82 PathProgramCache]: Analyzing trace with hash -77703494, now seen corresponding path program 151 times [2021-03-10 22:54:07,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:54:07,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945235358] [2021-03-10 22:54:07,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:54:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:54:07,555 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 37 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:54:07,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945235358] [2021-03-10 22:54:07,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436486930] [2021-03-10 22:54:07,555 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 152 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 152 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:54:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:54:07,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-10 22:54:07,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:54:08,735 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 37 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:54:08,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:54:08,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 19] total 32 [2021-03-10 22:54:08,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979369274] [2021-03-10 22:54:08,736 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-03-10 22:54:08,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:54:08,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-03-10 22:54:08,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=868, Unknown=0, NotChecked=0, Total=1056 [2021-03-10 22:54:08,736 INFO L87 Difference]: Start difference. First operand 73094 states and 188563 transitions. Second operand has 33 states, 33 states have (on average 2.3636363636363638) internal successors, (78), 32 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:54:13,287 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 12 [2021-03-10 22:54:16,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:54:16,667 INFO L93 Difference]: Finished difference Result 79388 states and 202095 transitions. [2021-03-10 22:54:16,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2021-03-10 22:54:16,670 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.3636363636363638) internal successors, (78), 32 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-03-10 22:54:16,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:54:16,819 INFO L225 Difference]: With dead ends: 79388 [2021-03-10 22:54:16,820 INFO L226 Difference]: Without dead ends: 79324 [2021-03-10 22:54:16,820 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6570 ImplicationChecksByTransitivity, 6802.5ms TimeCoverageRelationStatistics Valid=4066, Invalid=13490, Unknown=0, NotChecked=0, Total=17556 [2021-03-10 22:54:16,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79324 states. [2021-03-10 22:54:17,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79324 to 70876. [2021-03-10 22:54:18,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70876 states, 70875 states have (on average 2.586031746031746) internal successors, (183285), 70875 states have internal predecessors, (183285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:54:18,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70876 states to 70876 states and 183285 transitions. [2021-03-10 22:54:18,445 INFO L78 Accepts]: Start accepts. Automaton has 70876 states and 183285 transitions. Word has length 44 [2021-03-10 22:54:18,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:54:18,445 INFO L480 AbstractCegarLoop]: Abstraction has 70876 states and 183285 transitions. [2021-03-10 22:54:18,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.3636363636363638) internal successors, (78), 32 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:54:18,445 INFO L276 IsEmpty]: Start isEmpty. Operand 70876 states and 183285 transitions. [2021-03-10 22:54:18,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-03-10 22:54:18,487 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:54:18,487 INFO L519 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:54:18,687 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 152 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12236 [2021-03-10 22:54:18,687 INFO L428 AbstractCegarLoop]: === Iteration 157 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:54:18,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:54:18,688 INFO L82 PathProgramCache]: Analyzing trace with hash 844447798, now seen corresponding path program 152 times [2021-03-10 22:54:18,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:54:18,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932213280] [2021-03-10 22:54:18,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:54:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:54:19,049 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 36 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:54:19,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932213280] [2021-03-10 22:54:19,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067950170] [2021-03-10 22:54:19,050 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 153 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 153 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:54:19,074 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 22:54:19,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:54:19,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-10 22:54:19,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:54:20,322 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 36 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:54:20,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:54:20,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 19] total 33 [2021-03-10 22:54:20,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397078123] [2021-03-10 22:54:20,323 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-03-10 22:54:20,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:54:20,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-03-10 22:54:20,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=927, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 22:54:20,323 INFO L87 Difference]: Start difference. First operand 70876 states and 183285 transitions. Second operand has 34 states, 34 states have (on average 2.2941176470588234) internal successors, (78), 33 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:54:28,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:54:28,353 INFO L93 Difference]: Finished difference Result 78292 states and 198968 transitions. [2021-03-10 22:54:28,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-03-10 22:54:28,356 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.2941176470588234) internal successors, (78), 33 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-03-10 22:54:28,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:54:28,517 INFO L225 Difference]: With dead ends: 78292 [2021-03-10 22:54:28,517 INFO L226 Difference]: Without dead ends: 78222 [2021-03-10 22:54:28,519 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6842 ImplicationChecksByTransitivity, 7142.4ms TimeCoverageRelationStatistics Valid=4177, Invalid=13913, Unknown=0, NotChecked=0, Total=18090 [2021-03-10 22:54:28,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78222 states. [2021-03-10 22:54:30,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78222 to 66237. [2021-03-10 22:54:30,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66237 states, 66236 states have (on average 2.5923817863397547) internal successors, (171709), 66236 states have internal predecessors, (171709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:54:30,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66237 states to 66237 states and 171709 transitions. [2021-03-10 22:54:30,311 INFO L78 Accepts]: Start accepts. Automaton has 66237 states and 171709 transitions. Word has length 44 [2021-03-10 22:54:30,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:54:30,312 INFO L480 AbstractCegarLoop]: Abstraction has 66237 states and 171709 transitions. [2021-03-10 22:54:30,312 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.2941176470588234) internal successors, (78), 33 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:54:30,312 INFO L276 IsEmpty]: Start isEmpty. Operand 66237 states and 171709 transitions. [2021-03-10 22:54:30,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-03-10 22:54:30,358 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:54:30,358 INFO L519 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:54:30,559 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12237,153 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:54:30,559 INFO L428 AbstractCegarLoop]: === Iteration 158 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:54:30,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:54:30,559 INFO L82 PathProgramCache]: Analyzing trace with hash -2026390862, now seen corresponding path program 153 times [2021-03-10 22:54:30,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:54:30,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409582511] [2021-03-10 22:54:30,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:54:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:54:31,027 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 39 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:54:31,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409582511] [2021-03-10 22:54:31,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126021037] [2021-03-10 22:54:31,028 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 154 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 154 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:54:31,059 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2021-03-10 22:54:31,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:54:31,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-10 22:54:31,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:54:32,342 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 39 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:54:32,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:54:32,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19] total 34 [2021-03-10 22:54:32,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698594122] [2021-03-10 22:54:32,343 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-03-10 22:54:32,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:54:32,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-03-10 22:54:32,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=984, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 22:54:32,343 INFO L87 Difference]: Start difference. First operand 66237 states and 171709 transitions. Second operand has 35 states, 35 states have (on average 2.2285714285714286) internal successors, (78), 34 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:54:41,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:54:41,053 INFO L93 Difference]: Finished difference Result 75317 states and 190900 transitions. [2021-03-10 22:54:41,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-03-10 22:54:41,056 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.2285714285714286) internal successors, (78), 34 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-03-10 22:54:41,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:54:41,211 INFO L225 Difference]: With dead ends: 75317 [2021-03-10 22:54:41,212 INFO L226 Difference]: Without dead ends: 75249 [2021-03-10 22:54:41,213 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7072 ImplicationChecksByTransitivity, 7949.8ms TimeCoverageRelationStatistics Valid=4296, Invalid=14336, Unknown=0, NotChecked=0, Total=18632 [2021-03-10 22:54:41,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75249 states. [2021-03-10 22:54:42,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75249 to 60412. [2021-03-10 22:54:42,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60412 states, 60411 states have (on average 2.5961000480045024) internal successors, (156833), 60411 states have internal predecessors, (156833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:54:42,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60412 states to 60412 states and 156833 transitions. [2021-03-10 22:54:42,703 INFO L78 Accepts]: Start accepts. Automaton has 60412 states and 156833 transitions. Word has length 44 [2021-03-10 22:54:42,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:54:42,703 INFO L480 AbstractCegarLoop]: Abstraction has 60412 states and 156833 transitions. [2021-03-10 22:54:42,703 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.2285714285714286) internal successors, (78), 34 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:54:42,703 INFO L276 IsEmpty]: Start isEmpty. Operand 60412 states and 156833 transitions. [2021-03-10 22:54:42,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-03-10 22:54:42,981 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:54:42,981 INFO L519 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:54:43,205 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12238,154 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:54:43,206 INFO L428 AbstractCegarLoop]: === Iteration 159 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:54:43,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:54:43,206 INFO L82 PathProgramCache]: Analyzing trace with hash 761628206, now seen corresponding path program 154 times [2021-03-10 22:54:43,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:54:43,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063324670] [2021-03-10 22:54:43,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:54:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:54:43,715 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 46 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:54:43,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063324670] [2021-03-10 22:54:43,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720197776] [2021-03-10 22:54:43,716 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 155 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 155 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:54:43,740 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 22:54:43,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:54:43,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-10 22:54:43,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:54:45,231 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 46 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:54:45,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:54:45,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 35 [2021-03-10 22:54:45,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415075291] [2021-03-10 22:54:45,232 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-03-10 22:54:45,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:54:45,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-03-10 22:54:45,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=1039, Unknown=0, NotChecked=0, Total=1260 [2021-03-10 22:54:45,233 INFO L87 Difference]: Start difference. First operand 60412 states and 156833 transitions. Second operand has 36 states, 36 states have (on average 2.1666666666666665) internal successors, (78), 35 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:54:53,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:54:53,965 INFO L93 Difference]: Finished difference Result 71294 states and 180046 transitions. [2021-03-10 22:54:53,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2021-03-10 22:54:53,967 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.1666666666666665) internal successors, (78), 35 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-03-10 22:54:53,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:54:54,115 INFO L225 Difference]: With dead ends: 71294 [2021-03-10 22:54:54,115 INFO L226 Difference]: Without dead ends: 71236 [2021-03-10 22:54:54,116 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7215 ImplicationChecksByTransitivity, 8135.6ms TimeCoverageRelationStatistics Valid=4422, Invalid=14760, Unknown=0, NotChecked=0, Total=19182 [2021-03-10 22:54:54,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71236 states. [2021-03-10 22:54:55,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71236 to 55869. [2021-03-10 22:54:55,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55869 states, 55868 states have (on average 2.594168396935634) internal successors, (144931), 55868 states have internal predecessors, (144931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:54:55,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55869 states to 55869 states and 144931 transitions. [2021-03-10 22:54:55,500 INFO L78 Accepts]: Start accepts. Automaton has 55869 states and 144931 transitions. Word has length 44 [2021-03-10 22:54:55,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:54:55,500 INFO L480 AbstractCegarLoop]: Abstraction has 55869 states and 144931 transitions. [2021-03-10 22:54:55,500 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 2.1666666666666665) internal successors, (78), 35 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:54:55,500 INFO L276 IsEmpty]: Start isEmpty. Operand 55869 states and 144931 transitions. [2021-03-10 22:54:55,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-03-10 22:54:55,539 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:54:55,539 INFO L519 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:54:55,740 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 155 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12239 [2021-03-10 22:54:55,740 INFO L428 AbstractCegarLoop]: === Iteration 160 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:54:55,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:54:55,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1467247882, now seen corresponding path program 155 times [2021-03-10 22:54:55,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:54:55,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140282593] [2021-03-10 22:54:55,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:54:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:54:56,348 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 48 proven. 64 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:54:56,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140282593] [2021-03-10 22:54:56,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383602508] [2021-03-10 22:54:56,348 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 156 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 156 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:54:56,375 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-03-10 22:54:56,375 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:54:56,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-10 22:54:56,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:54:57,812 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 42 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:54:57,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:54:57,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2021-03-10 22:54:57,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957286301] [2021-03-10 22:54:57,813 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-03-10 22:54:57,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:54:57,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-03-10 22:54:57,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=1100, Unknown=0, NotChecked=0, Total=1332 [2021-03-10 22:54:57,813 INFO L87 Difference]: Start difference. First operand 55869 states and 144931 transitions. Second operand has 37 states, 37 states have (on average 2.189189189189189) internal successors, (81), 36 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:55:05,292 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-03-10 22:55:07,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:55:07,602 INFO L93 Difference]: Finished difference Result 63141 states and 160316 transitions. [2021-03-10 22:55:07,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-03-10 22:55:07,604 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 2.189189189189189) internal successors, (81), 36 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-03-10 22:55:07,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:55:07,744 INFO L225 Difference]: With dead ends: 63141 [2021-03-10 22:55:07,744 INFO L226 Difference]: Without dead ends: 63141 [2021-03-10 22:55:07,745 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5668 ImplicationChecksByTransitivity, 8658.7ms TimeCoverageRelationStatistics Valid=4294, Invalid=13528, Unknown=0, NotChecked=0, Total=17822 [2021-03-10 22:55:07,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63141 states. [2021-03-10 22:55:08,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63141 to 51453. [2021-03-10 22:55:08,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51453 states, 51452 states have (on average 2.5921635699292542) internal successors, (133372), 51452 states have internal predecessors, (133372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:55:08,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51453 states to 51453 states and 133372 transitions. [2021-03-10 22:55:08,931 INFO L78 Accepts]: Start accepts. Automaton has 51453 states and 133372 transitions. Word has length 44 [2021-03-10 22:55:08,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:55:08,931 INFO L480 AbstractCegarLoop]: Abstraction has 51453 states and 133372 transitions. [2021-03-10 22:55:08,931 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 2.189189189189189) internal successors, (81), 36 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:55:08,931 INFO L276 IsEmpty]: Start isEmpty. Operand 51453 states and 133372 transitions. [2021-03-10 22:55:08,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-03-10 22:55:08,963 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:55:08,963 INFO L519 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:55:09,164 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12240,156 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:55:09,164 INFO L428 AbstractCegarLoop]: === Iteration 161 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:55:09,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:55:09,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1641909810, now seen corresponding path program 156 times [2021-03-10 22:55:09,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:55:09,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408249195] [2021-03-10 22:55:09,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:55:09,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:55:09,730 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 51 proven. 61 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:55:09,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408249195] [2021-03-10 22:55:09,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784927744] [2021-03-10 22:55:09,730 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 157 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 157 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:55:09,758 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-03-10 22:55:09,758 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:55:09,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-10 22:55:09,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:55:11,444 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 51 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:55:11,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:55:11,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 35 [2021-03-10 22:55:11,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887454433] [2021-03-10 22:55:11,445 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-03-10 22:55:11,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:55:11,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-03-10 22:55:11,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=1053, Unknown=0, NotChecked=0, Total=1260 [2021-03-10 22:55:11,445 INFO L87 Difference]: Start difference. First operand 51453 states and 133372 transitions. Second operand has 36 states, 36 states have (on average 2.1944444444444446) internal successors, (79), 35 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:55:18,604 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 13 [2021-03-10 22:55:24,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:55:24,322 INFO L93 Difference]: Finished difference Result 57683 states and 146274 transitions. [2021-03-10 22:55:24,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2021-03-10 22:55:24,325 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.1944444444444446) internal successors, (79), 35 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-03-10 22:55:24,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:55:24,452 INFO L225 Difference]: With dead ends: 57683 [2021-03-10 22:55:24,453 INFO L226 Difference]: Without dead ends: 57500 [2021-03-10 22:55:24,454 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9516 ImplicationChecksByTransitivity, 12007.0ms TimeCoverageRelationStatistics Valid=5161, Invalid=20279, Unknown=0, NotChecked=0, Total=25440 [2021-03-10 22:55:24,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57500 states. [2021-03-10 22:55:25,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57500 to 50307. [2021-03-10 22:55:25,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50307 states, 50306 states have (on average 2.5821770762930862) internal successors, (129899), 50306 states have internal predecessors, (129899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:55:25,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50307 states to 50307 states and 129899 transitions. [2021-03-10 22:55:25,789 INFO L78 Accepts]: Start accepts. Automaton has 50307 states and 129899 transitions. Word has length 44 [2021-03-10 22:55:25,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:55:25,789 INFO L480 AbstractCegarLoop]: Abstraction has 50307 states and 129899 transitions. [2021-03-10 22:55:25,789 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 2.1944444444444446) internal successors, (79), 35 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:55:25,789 INFO L276 IsEmpty]: Start isEmpty. Operand 50307 states and 129899 transitions. [2021-03-10 22:55:25,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-03-10 22:55:25,820 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:55:25,820 INFO L519 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:55:26,021 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12241,157 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:55:26,021 INFO L428 AbstractCegarLoop]: === Iteration 162 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:55:26,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:55:26,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1238626058, now seen corresponding path program 157 times [2021-03-10 22:55:26,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:55:26,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710648373] [2021-03-10 22:55:26,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:55:26,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:55:26,588 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 47 proven. 65 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:55:26,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710648373] [2021-03-10 22:55:26,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886555033] [2021-03-10 22:55:26,588 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 158 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 158 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:55:26,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:55:26,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-10 22:55:26,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:55:28,286 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 42 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:55:28,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:55:28,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 35 [2021-03-10 22:55:28,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066478549] [2021-03-10 22:55:28,286 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-03-10 22:55:28,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:55:28,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-03-10 22:55:28,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=1049, Unknown=0, NotChecked=0, Total=1260 [2021-03-10 22:55:28,287 INFO L87 Difference]: Start difference. First operand 50307 states and 129899 transitions. Second operand has 36 states, 36 states have (on average 2.25) internal successors, (81), 35 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:55:37,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:55:37,681 INFO L93 Difference]: Finished difference Result 60574 states and 152493 transitions. [2021-03-10 22:55:37,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-03-10 22:55:37,683 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.25) internal successors, (81), 35 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-03-10 22:55:37,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:55:37,813 INFO L225 Difference]: With dead ends: 60574 [2021-03-10 22:55:37,813 INFO L226 Difference]: Without dead ends: 60574 [2021-03-10 22:55:37,815 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6651 ImplicationChecksByTransitivity, 8365.8ms TimeCoverageRelationStatistics Valid=4738, Invalid=15002, Unknown=0, NotChecked=0, Total=19740 [2021-03-10 22:55:37,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60574 states. [2021-03-10 22:55:38,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60574 to 46600. [2021-03-10 22:55:38,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46600 states, 46599 states have (on average 2.5784029700208158) internal successors, (120151), 46599 states have internal predecessors, (120151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:55:38,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46600 states to 46600 states and 120151 transitions. [2021-03-10 22:55:38,899 INFO L78 Accepts]: Start accepts. Automaton has 46600 states and 120151 transitions. Word has length 44 [2021-03-10 22:55:38,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:55:38,900 INFO L480 AbstractCegarLoop]: Abstraction has 46600 states and 120151 transitions. [2021-03-10 22:55:38,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 2.25) internal successors, (81), 35 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:55:38,900 INFO L276 IsEmpty]: Start isEmpty. Operand 46600 states and 120151 transitions. [2021-03-10 22:55:38,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-03-10 22:55:38,933 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:55:38,933 INFO L519 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:55:39,147 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12242,158 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:55:39,147 INFO L428 AbstractCegarLoop]: === Iteration 163 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:55:39,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:55:39,148 INFO L82 PathProgramCache]: Analyzing trace with hash -453268686, now seen corresponding path program 158 times [2021-03-10 22:55:39,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:55:39,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777060942] [2021-03-10 22:55:39,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:55:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:55:39,532 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 43 proven. 69 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:55:39,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777060942] [2021-03-10 22:55:39,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275103782] [2021-03-10 22:55:39,532 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 159 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 159 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:55:39,557 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 22:55:39,557 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:55:39,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-10 22:55:39,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:55:41,134 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 42 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:55:41,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:55:41,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19] total 34 [2021-03-10 22:55:41,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092787887] [2021-03-10 22:55:41,134 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-03-10 22:55:41,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:55:41,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-03-10 22:55:41,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=997, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 22:55:41,135 INFO L87 Difference]: Start difference. First operand 46600 states and 120151 transitions. Second operand has 35 states, 35 states have (on average 2.257142857142857) internal successors, (79), 34 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:55:43,352 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 11 [2021-03-10 22:55:53,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:55:53,100 INFO L93 Difference]: Finished difference Result 51978 states and 131845 transitions. [2021-03-10 22:55:53,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-03-10 22:55:53,102 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.257142857142857) internal successors, (79), 34 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-03-10 22:55:53,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:55:53,211 INFO L225 Difference]: With dead ends: 51978 [2021-03-10 22:55:53,211 INFO L226 Difference]: Without dead ends: 51840 [2021-03-10 22:55:53,212 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8358 ImplicationChecksByTransitivity, 10816.2ms TimeCoverageRelationStatistics Valid=4391, Invalid=17365, Unknown=0, NotChecked=0, Total=21756 [2021-03-10 22:55:53,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51840 states. [2021-03-10 22:55:54,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51840 to 46019. [2021-03-10 22:55:54,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46019 states, 46018 states have (on average 2.568690512408188) internal successors, (118206), 46018 states have internal predecessors, (118206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:55:54,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46019 states to 46019 states and 118206 transitions. [2021-03-10 22:55:54,344 INFO L78 Accepts]: Start accepts. Automaton has 46019 states and 118206 transitions. Word has length 44 [2021-03-10 22:55:54,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:55:54,344 INFO L480 AbstractCegarLoop]: Abstraction has 46019 states and 118206 transitions. [2021-03-10 22:55:54,344 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.257142857142857) internal successors, (79), 34 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:55:54,344 INFO L276 IsEmpty]: Start isEmpty. Operand 46019 states and 118206 transitions. [2021-03-10 22:55:54,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-03-10 22:55:54,375 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:55:54,375 INFO L519 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:55:54,576 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12243,159 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:55:54,576 INFO L428 AbstractCegarLoop]: === Iteration 164 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:55:54,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:55:54,576 INFO L82 PathProgramCache]: Analyzing trace with hash 232001270, now seen corresponding path program 159 times [2021-03-10 22:55:54,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:55:54,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791312349] [2021-03-10 22:55:54,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:55:54,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:55:55,187 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 46 proven. 66 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:55:55,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791312349] [2021-03-10 22:55:55,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660606192] [2021-03-10 22:55:55,188 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 160 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 160 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:55:55,219 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-03-10 22:55:55,220 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:55:55,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-10 22:55:55,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:55:56,958 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 42 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:55:56,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:55:56,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19] total 34 [2021-03-10 22:55:56,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419249609] [2021-03-10 22:55:56,959 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-03-10 22:55:56,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:55:56,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-03-10 22:55:56,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=996, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 22:55:56,959 INFO L87 Difference]: Start difference. First operand 46019 states and 118206 transitions. Second operand has 35 states, 35 states have (on average 2.3142857142857145) internal successors, (81), 34 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:55:58,223 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 11 [2021-03-10 22:56:10,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:56:10,291 INFO L93 Difference]: Finished difference Result 58521 states and 146329 transitions. [2021-03-10 22:56:10,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2021-03-10 22:56:10,292 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.3142857142857145) internal successors, (81), 34 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-03-10 22:56:10,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:56:10,502 INFO L225 Difference]: With dead ends: 58521 [2021-03-10 22:56:10,503 INFO L226 Difference]: Without dead ends: 58521 [2021-03-10 22:56:10,504 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7956 ImplicationChecksByTransitivity, 12133.8ms TimeCoverageRelationStatistics Valid=5503, Invalid=16847, Unknown=0, NotChecked=0, Total=22350 [2021-03-10 22:56:10,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58521 states. [2021-03-10 22:56:11,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58521 to 43122. [2021-03-10 22:56:11,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43122 states, 43121 states have (on average 2.5638551981633078) internal successors, (110556), 43121 states have internal predecessors, (110556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:56:11,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43122 states to 43122 states and 110556 transitions. [2021-03-10 22:56:11,443 INFO L78 Accepts]: Start accepts. Automaton has 43122 states and 110556 transitions. Word has length 44 [2021-03-10 22:56:11,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:56:11,443 INFO L480 AbstractCegarLoop]: Abstraction has 43122 states and 110556 transitions. [2021-03-10 22:56:11,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.3142857142857145) internal successors, (81), 34 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:56:11,444 INFO L276 IsEmpty]: Start isEmpty. Operand 43122 states and 110556 transitions. [2021-03-10 22:56:11,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-03-10 22:56:11,475 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:56:11,476 INFO L519 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:56:11,676 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 160 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12244 [2021-03-10 22:56:11,676 INFO L428 AbstractCegarLoop]: === Iteration 165 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:56:11,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:56:11,677 INFO L82 PathProgramCache]: Analyzing trace with hash -486733774, now seen corresponding path program 160 times [2021-03-10 22:56:11,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:56:11,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139705824] [2021-03-10 22:56:11,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:56:11,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:56:12,176 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 39 proven. 73 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:56:12,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139705824] [2021-03-10 22:56:12,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14822808] [2021-03-10 22:56:12,177 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 161 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 161 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:56:12,202 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 22:56:12,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:56:12,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-10 22:56:12,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:56:14,096 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 37 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:56:14,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:56:14,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 19] total 33 [2021-03-10 22:56:14,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505959852] [2021-03-10 22:56:14,096 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-03-10 22:56:14,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:56:14,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-03-10 22:56:14,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=939, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 22:56:14,097 INFO L87 Difference]: Start difference. First operand 43122 states and 110556 transitions. Second operand has 34 states, 34 states have (on average 2.323529411764706) internal successors, (79), 33 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:56:15,401 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 12 [2021-03-10 22:56:26,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:56:26,697 INFO L93 Difference]: Finished difference Result 47939 states and 121721 transitions. [2021-03-10 22:56:26,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2021-03-10 22:56:26,701 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.323529411764706) internal successors, (79), 33 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-03-10 22:56:26,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:56:26,799 INFO L225 Difference]: With dead ends: 47939 [2021-03-10 22:56:26,800 INFO L226 Difference]: Without dead ends: 47840 [2021-03-10 22:56:26,801 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7396 ImplicationChecksByTransitivity, 11385.5ms TimeCoverageRelationStatistics Valid=3858, Invalid=15048, Unknown=0, NotChecked=0, Total=18906 [2021-03-10 22:56:26,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47840 states. [2021-03-10 22:56:27,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47840 to 43476. [2021-03-10 22:56:27,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43476 states, 43475 states have (on average 2.5605520414031053) internal successors, (111320), 43475 states have internal predecessors, (111320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:56:27,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43476 states to 43476 states and 111320 transitions. [2021-03-10 22:56:27,889 INFO L78 Accepts]: Start accepts. Automaton has 43476 states and 111320 transitions. Word has length 44 [2021-03-10 22:56:27,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:56:27,889 INFO L480 AbstractCegarLoop]: Abstraction has 43476 states and 111320 transitions. [2021-03-10 22:56:27,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.323529411764706) internal successors, (79), 33 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:56:27,889 INFO L276 IsEmpty]: Start isEmpty. Operand 43476 states and 111320 transitions. [2021-03-10 22:56:27,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-03-10 22:56:27,920 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:56:27,920 INFO L519 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:56:28,120 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 161 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12245 [2021-03-10 22:56:28,121 INFO L428 AbstractCegarLoop]: === Iteration 166 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:56:28,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:56:28,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1956410122, now seen corresponding path program 161 times [2021-03-10 22:56:28,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:56:28,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402121660] [2021-03-10 22:56:28,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:56:28,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:56:28,720 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 45 proven. 67 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:56:28,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402121660] [2021-03-10 22:56:28,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086660120] [2021-03-10 22:56:28,721 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 162 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 162 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:56:28,749 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-03-10 22:56:28,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:56:28,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-10 22:56:28,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:56:30,592 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 42 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:56:30,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:56:30,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 19] total 33 [2021-03-10 22:56:30,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118259615] [2021-03-10 22:56:30,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-03-10 22:56:30,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:56:30,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-03-10 22:56:30,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=941, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 22:56:30,593 INFO L87 Difference]: Start difference. First operand 43476 states and 111320 transitions. Second operand has 34 states, 34 states have (on average 2.3823529411764706) internal successors, (81), 33 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:56:34,047 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 12 [2021-03-10 22:56:40,764 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2021-03-10 22:56:47,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 22:56:47,056 INFO L93 Difference]: Finished difference Result 57787 states and 143896 transitions. [2021-03-10 22:56:47,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2021-03-10 22:56:47,059 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.3823529411764706) internal successors, (81), 33 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-03-10 22:56:47,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 22:56:47,195 INFO L225 Difference]: With dead ends: 57787 [2021-03-10 22:56:47,195 INFO L226 Difference]: Without dead ends: 57787 [2021-03-10 22:56:47,197 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10047 ImplicationChecksByTransitivity, 14637.8ms TimeCoverageRelationStatistics Valid=6742, Invalid=19664, Unknown=0, NotChecked=0, Total=26406 [2021-03-10 22:56:47,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57787 states. [2021-03-10 22:56:48,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57787 to 41310. [2021-03-10 22:56:48,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41310 states, 41309 states have (on average 2.552760899561839) internal successors, (105452), 41309 states have internal predecessors, (105452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:56:48,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41310 states to 41310 states and 105452 transitions. [2021-03-10 22:56:48,193 INFO L78 Accepts]: Start accepts. Automaton has 41310 states and 105452 transitions. Word has length 44 [2021-03-10 22:56:48,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 22:56:48,193 INFO L480 AbstractCegarLoop]: Abstraction has 41310 states and 105452 transitions. [2021-03-10 22:56:48,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.3823529411764706) internal successors, (81), 33 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 22:56:48,193 INFO L276 IsEmpty]: Start isEmpty. Operand 41310 states and 105452 transitions. [2021-03-10 22:56:48,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-03-10 22:56:48,224 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 22:56:48,224 INFO L519 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 22:56:48,424 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12246,162 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:56:48,424 INFO L428 AbstractCegarLoop]: === Iteration 167 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 22:56:48,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 22:56:48,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1001497906, now seen corresponding path program 162 times [2021-03-10 22:56:48,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 22:56:48,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17060347] [2021-03-10 22:56:48,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 22:56:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 22:56:48,972 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 39 proven. 73 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 22:56:48,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17060347] [2021-03-10 22:56:48,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135109507] [2021-03-10 22:56:48,973 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 163 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 163 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 22:56:49,002 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-03-10 22:56:49,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 22:56:49,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-10 22:56:49,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 22:56:51,138 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 36 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 22:56:51,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 22:56:51,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 19] total 32 [2021-03-10 22:56:51,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472588271] [2021-03-10 22:56:51,138 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-03-10 22:56:51,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 22:56:51,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-03-10 22:56:51,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=879, Unknown=0, NotChecked=0, Total=1056 [2021-03-10 22:56:51,139 INFO L87 Difference]: Start difference. First operand 41310 states and 105452 transitions. Second operand has 33 states, 33 states have (on average 2.393939393939394) internal successors, (79), 32 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2021-03-10 22:56:53,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 22:56:53,480 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 163 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12247 [2021-03-10 22:56:53,480 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-10 22:56:53,484 WARN L224 ceAbstractionStarter]: Timeout [2021-03-10 22:56:53,485 INFO L202 PluginConnector]: Adding new model counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 10:56:53 BasicIcfg [2021-03-10 22:56:53,485 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 22:56:53,486 INFO L168 Benchmark]: Toolchain (without parser) took 783913.16 ms. Allocated memory was 255.9 MB in the beginning and 8.1 GB in the end (delta: 7.8 GB). Free memory was 236.5 MB in the beginning and 4.6 GB in the end (delta: -4.4 GB). Peak memory consumption was 3.5 GB. Max. memory is 16.0 GB. [2021-03-10 22:56:53,486 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.26 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 22:56:53,486 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.64 ms. Allocated memory is still 255.9 MB. Free memory was 235.9 MB in the beginning and 234.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 22:56:53,486 INFO L168 Benchmark]: Boogie Preprocessor took 15.04 ms. Allocated memory is still 255.9 MB. Free memory was 234.5 MB in the beginning and 233.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 22:56:53,486 INFO L168 Benchmark]: RCFGBuilder took 308.33 ms. Allocated memory is still 255.9 MB. Free memory was 233.4 MB in the beginning and 235.7 MB in the end (delta: -2.3 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.0 GB. [2021-03-10 22:56:53,486 INFO L168 Benchmark]: TraceAbstraction took 783554.09 ms. Allocated memory was 255.9 MB in the beginning and 8.1 GB in the end (delta: 7.8 GB). Free memory was 234.9 MB in the beginning and 4.6 GB in the end (delta: -4.4 GB). Peak memory consumption was 3.5 GB. Max. memory is 16.0 GB. [2021-03-10 22:56:53,487 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.26 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 25.64 ms. Allocated memory is still 255.9 MB. Free memory was 235.9 MB in the beginning and 234.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.04 ms. Allocated memory is still 255.9 MB. Free memory was 234.5 MB in the beginning and 233.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 308.33 ms. Allocated memory is still 255.9 MB. Free memory was 233.4 MB in the beginning and 235.7 MB in the end (delta: -2.3 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 783554.09 ms. Allocated memory was 255.9 MB in the beginning and 8.1 GB in the end (delta: 7.8 GB). Free memory was 234.9 MB in the beginning and 4.6 GB in the end (delta: -4.4 GB). Peak memory consumption was 3.5 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 53]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 53). Cancelled while BasicCegarLoop was constructing difference of abstraction (41310states) and FLOYD_HOARE automaton (currently 27 states, 33 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 48 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 783413.9ms, OverallIterations: 167, TraceHistogramMax: 8, EmptinessCheckTime: 2439.8ms, AutomataDifference: 352352.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 21.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 7487 SDtfs, 49466 SDslu, 73184 SDs, 0 SdLazy, 83373 SolverSat, 11969 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 52276.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15402 GetRequests, 4164 SyntacticMatches, 25 SemanticMatches, 11212 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384572 ImplicationChecksByTransitivity, 390817.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=73137occurred in iteration=154, InterpolantAutomatonStates: 8970, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 58308.9ms AutomataMinimizationTime, 166 MinimizatonAttempts, 453651 StatesRemovedByMinimization, 166 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 555.7ms SsaConstructionTime, 2308.4ms SatisfiabilityAnalysisTime, 330919.0ms InterpolantComputationTime, 11112 NumberOfCodeBlocks, 11112 NumberOfCodeBlocksAsserted, 861 NumberOfCheckSat, 10783 ConstructedInterpolants, 112 QuantifiedInterpolants, 169808 SizeOfPredicates, 580 NumberOfNonLiveVariables, 15904 ConjunctsInSsa, 3004 ConjunctsInUnsatCore, 329 InterpolantComputations, 5 PerfectInterpolantSequences, 6334/18513 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown