/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 0.2.1-9b7772ad7705253c1305067fc38dc9bc7271fbe3-9b7772a [2021-04-15 03:41:38,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-15 03:41:38,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-15 03:41:38,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-15 03:41:38,926 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 [2021-04-15 03:41:38,946 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-15 03:41:38,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-15 03:41:38,946 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-04-15 03:41:38,946 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-04-15 03:41:38,947 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-15 03:41:38,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-15 03:41:38,947 INFO L138 SettingsManager]: * Use SBE=true [2021-04-15 03:41:38,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-15 03:41:38,948 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-15 03:41:38,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-15 03:41:38,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-15 03:41:38,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-15 03:41:38,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-15 03:41:38,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-15 03:41:38,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-15 03:41:38,949 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-15 03:41:38,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-15 03:41:38,949 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-15 03:41:38,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-15 03:41:38,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-15 03:41:38,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-15 03:41:38,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-15 03:41:38,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-15 03:41:38,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-15 03:41:38,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-15 03:41:38,950 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-15 03:41:38,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-15 03:41:38,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-15 03:41:38,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-15 03:41:38,951 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-04-15 03:41:38,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-04-15 03:41:38,951 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-15 03:41:39,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-15 03:41:39,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-15 03:41:39,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-15 03:41:39,251 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-04-15 03:41:39,253 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-04-15 03:41:39,254 INFO L432 ainManager$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 [2021-04-15 03:41:39,254 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-fun.wvr.bpl' [2021-04-15 03:41:39,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-15 03:41:39,299 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-15 03:41:39,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-15 03:41:39,300 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-15 03:41:39,300 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-15 03:41:39,309 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 15.04 03:41:39" (1/1) ... [2021-04-15 03:41:39,317 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 15.04 03:41:39" (1/1) ... [2021-04-15 03:41:39,323 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-15 03:41:39,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-15 03:41:39,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-15 03:41:39,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-15 03:41:39,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.04 03:41:39" (1/1) ... [2021-04-15 03:41:39,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.04 03:41:39" (1/1) ... [2021-04-15 03:41:39,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.04 03:41:39" (1/1) ... [2021-04-15 03:41:39,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.04 03:41:39" (1/1) ... [2021-04-15 03:41:39,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.04 03:41:39" (1/1) ... [2021-04-15 03:41:39,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.04 03:41:39" (1/1) ... [2021-04-15 03:41:39,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.04 03:41:39" (1/1) ... [2021-04-15 03:41:39,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-15 03:41:39,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-15 03:41:39,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-15 03:41:39,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-15 03:41:39,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.04 03:41:39" (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 [2021-04-15 03:41:39,412 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-04-15 03:41:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-04-15 03:41:39,412 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-04-15 03:41:39,412 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-04-15 03:41:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-04-15 03:41:39,413 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-04-15 03:41:39,413 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-04-15 03:41:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-15 03:41:39,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-15 03:41:39,414 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-15 03:41:39,622 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-15 03:41:39,622 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-04-15 03:41:39,624 INFO L202 PluginConnector]: Adding new model counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 03:41:39 BoogieIcfgContainer [2021-04-15 03:41:39,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-15 03:41:39,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-15 03:41:39,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-15 03:41:39,627 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-15 03:41:39,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.04 03:41:39" (1/2) ... [2021-04-15 03:41:39,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4381dd84 and model type counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 03:41:39, skipping insertion in model container [2021-04-15 03:41:39,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 03:41:39" (2/2) ... [2021-04-15 03:41:39,630 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-fun.wvr.bpl [2021-04-15 03:41:39,651 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-04-15 03:41:39,651 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-15 03:41:39,654 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-15 03:41:39,655 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-15 03:41:39,679 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-04-15 03:41:39,693 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-15 03:41:39,708 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-15 03:41:39,708 INFO L377 AbstractCegarLoop]: Hoare is true [2021-04-15 03:41:39,708 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-15 03:41:39,708 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-15 03:41:39,708 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-15 03:41:39,708 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-15 03:41:39,708 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-15 03:41:39,708 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-15 03:41:39,716 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 22 transitions, 60 flow [2021-04-15 03:41:39,725 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) [2021-04-15 03:41:39,727 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) [2021-04-15 03:41:39,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-04-15 03:41:39,731 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:39,732 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:39,732 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:39,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:39,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1451168716, now seen corresponding path program 1 times [2021-04-15 03:41:39,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:39,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191785103] [2021-04-15 03:41:39,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:39,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:39,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191785103] [2021-04-15 03:41:39,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 03:41:39,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-15 03:41:39,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368082245] [2021-04-15 03:41:39,895 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-15 03:41:39,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:39,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-15 03:41:39,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-15 03:41:39,916 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) [2021-04-15 03:41:39,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:39,951 INFO L93 Difference]: Finished difference Result 57 states and 105 transitions. [2021-04-15 03:41:39,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 03:41:39,955 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 [2021-04-15 03:41:39,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:39,966 INFO L225 Difference]: With dead ends: 57 [2021-04-15 03:41:39,966 INFO L226 Difference]: Without dead ends: 50 [2021-04-15 03:41:39,967 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-15 03:41:39,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-04-15 03:41:40,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2021-04-15 03:41:40,008 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) [2021-04-15 03:41:40,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 74 transitions. [2021-04-15 03:41:40,012 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 74 transitions. Word has length 14 [2021-04-15 03:41:40,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:40,014 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 74 transitions. [2021-04-15 03:41:40,014 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) [2021-04-15 03:41:40,014 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 74 transitions. [2021-04-15 03:41:40,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-04-15 03:41:40,015 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:40,015 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:40,015 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-15 03:41:40,015 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:40,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:40,020 INFO L82 PathProgramCache]: Analyzing trace with hash -334624586, now seen corresponding path program 1 times [2021-04-15 03:41:40,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:40,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773405617] [2021-04-15 03:41:40,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:40,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:40,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773405617] [2021-04-15 03:41:40,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154652974] [2021-04-15 03:41:40,134 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 [2021-04-15 03:41:40,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:40,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjunts are in the unsatisfiable core [2021-04-15 03:41:40,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:41:40,296 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:40,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:41:40,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2021-04-15 03:41:40,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982943301] [2021-04-15 03:41:40,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-04-15 03:41:40,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:40,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-04-15 03:41:40,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-04-15 03:41:40,299 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) [2021-04-15 03:41:40,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:40,457 INFO L93 Difference]: Finished difference Result 68 states and 120 transitions. [2021-04-15 03:41:40,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-15 03:41:40,458 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 [2021-04-15 03:41:40,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:40,459 INFO L225 Difference]: With dead ends: 68 [2021-04-15 03:41:40,459 INFO L226 Difference]: Without dead ends: 68 [2021-04-15 03:41:40,460 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 144.5ms TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-04-15 03:41:40,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-04-15 03:41:40,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 41. [2021-04-15 03:41:40,465 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) [2021-04-15 03:41:40,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 76 transitions. [2021-04-15 03:41:40,466 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 76 transitions. Word has length 16 [2021-04-15 03:41:40,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:40,467 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 76 transitions. [2021-04-15 03:41:40,467 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) [2021-04-15 03:41:40,467 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 76 transitions. [2021-04-15 03:41:40,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-04-15 03:41:40,468 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:40,468 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:40,689 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-04-15 03:41:40,690 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:40,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:40,691 INFO L82 PathProgramCache]: Analyzing trace with hash 368180722, now seen corresponding path program 1 times [2021-04-15 03:41:40,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:40,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941912847] [2021-04-15 03:41:40,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:40,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:40,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941912847] [2021-04-15 03:41:40,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 03:41:40,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-15 03:41:40,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823347324] [2021-04-15 03:41:40,742 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-15 03:41:40,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:40,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-15 03:41:40,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-04-15 03:41:40,744 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) [2021-04-15 03:41:40,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:40,816 INFO L93 Difference]: Finished difference Result 71 states and 125 transitions. [2021-04-15 03:41:40,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-15 03:41:40,816 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 [2021-04-15 03:41:40,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:40,821 INFO L225 Difference]: With dead ends: 71 [2021-04-15 03:41:40,823 INFO L226 Difference]: Without dead ends: 66 [2021-04-15 03:41:40,823 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 41.6ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-04-15 03:41:40,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-04-15 03:41:40,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 49. [2021-04-15 03:41:40,871 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) [2021-04-15 03:41:40,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 91 transitions. [2021-04-15 03:41:40,871 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 91 transitions. Word has length 16 [2021-04-15 03:41:40,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:40,872 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 91 transitions. [2021-04-15 03:41:40,872 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) [2021-04-15 03:41:40,872 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 91 transitions. [2021-04-15 03:41:40,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-04-15 03:41:40,872 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:40,872 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:40,872 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-15 03:41:40,873 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:40,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:40,873 INFO L82 PathProgramCache]: Analyzing trace with hash -896747138, now seen corresponding path program 2 times [2021-04-15 03:41:40,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:40,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634565185] [2021-04-15 03:41:40,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:40,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:40,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:40,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634565185] [2021-04-15 03:41:40,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 03:41:40,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-15 03:41:40,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526814902] [2021-04-15 03:41:40,938 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-15 03:41:40,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:40,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-15 03:41:40,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-04-15 03:41:40,940 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) [2021-04-15 03:41:40,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:40,987 INFO L93 Difference]: Finished difference Result 51 states and 94 transitions. [2021-04-15 03:41:40,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-15 03:41:40,987 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 [2021-04-15 03:41:40,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:40,989 INFO L225 Difference]: With dead ends: 51 [2021-04-15 03:41:40,989 INFO L226 Difference]: Without dead ends: 51 [2021-04-15 03:41:40,989 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 38.5ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-04-15 03:41:40,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-04-15 03:41:40,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 43. [2021-04-15 03:41:40,996 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) [2021-04-15 03:41:40,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 79 transitions. [2021-04-15 03:41:40,999 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 79 transitions. Word has length 16 [2021-04-15 03:41:40,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:40,999 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 79 transitions. [2021-04-15 03:41:40,999 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) [2021-04-15 03:41:41,000 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 79 transitions. [2021-04-15 03:41:41,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-04-15 03:41:41,000 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:41,000 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:41,001 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-15 03:41:41,001 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:41,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:41,001 INFO L82 PathProgramCache]: Analyzing trace with hash 2014322076, now seen corresponding path program 2 times [2021-04-15 03:41:41,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:41,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754856744] [2021-04-15 03:41:41,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:41,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:41,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:41,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754856744] [2021-04-15 03:41:41,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 03:41:41,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-15 03:41:41,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281574498] [2021-04-15 03:41:41,054 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-15 03:41:41,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:41,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-15 03:41:41,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-04-15 03:41:41,056 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) [2021-04-15 03:41:41,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:41,119 INFO L93 Difference]: Finished difference Result 51 states and 92 transitions. [2021-04-15 03:41:41,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-15 03:41:41,120 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 [2021-04-15 03:41:41,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:41,120 INFO L225 Difference]: With dead ends: 51 [2021-04-15 03:41:41,120 INFO L226 Difference]: Without dead ends: 49 [2021-04-15 03:41:41,120 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 39.6ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-04-15 03:41:41,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-04-15 03:41:41,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2021-04-15 03:41:41,129 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) [2021-04-15 03:41:41,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 78 transitions. [2021-04-15 03:41:41,130 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 78 transitions. Word has length 16 [2021-04-15 03:41:41,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:41,130 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 78 transitions. [2021-04-15 03:41:41,130 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) [2021-04-15 03:41:41,130 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 78 transitions. [2021-04-15 03:41:41,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-04-15 03:41:41,131 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:41,131 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:41,131 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-15 03:41:41,131 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:41,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:41,133 INFO L82 PathProgramCache]: Analyzing trace with hash -374734348, now seen corresponding path program 1 times [2021-04-15 03:41:41,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:41,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174250203] [2021-04-15 03:41:41,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:41,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:41,173 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:41,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174250203] [2021-04-15 03:41:41,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584324336] [2021-04-15 03:41:41,173 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 [2021-04-15 03:41:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:41,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 9 conjunts are in the unsatisfiable core [2021-04-15 03:41:41,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:41:41,244 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 [2021-04-15 03:41:41,258 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:41:41,260 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:41:41,261 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:41:41,261 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:5 [2021-04-15 03:41:41,298 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 [2021-04-15 03:41:41,303 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:41:41,305 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:41:41,306 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:41:41,306 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-04-15 03:41:41,317 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:41,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:41:41,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-04-15 03:41:41,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276568163] [2021-04-15 03:41:41,318 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-15 03:41:41,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:41,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-15 03:41:41,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-15 03:41:41,319 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) [2021-04-15 03:41:41,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:41,339 INFO L93 Difference]: Finished difference Result 99 states and 186 transitions. [2021-04-15 03:41:41,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-15 03:41:41,340 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 [2021-04-15 03:41:41,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:41,341 INFO L225 Difference]: With dead ends: 99 [2021-04-15 03:41:41,341 INFO L226 Difference]: Without dead ends: 92 [2021-04-15 03:41:41,341 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.0ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-15 03:41:41,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-04-15 03:41:41,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 69. [2021-04-15 03:41:41,348 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) [2021-04-15 03:41:41,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 139 transitions. [2021-04-15 03:41:41,349 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 139 transitions. Word has length 18 [2021-04-15 03:41:41,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:41,349 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 139 transitions. [2021-04-15 03:41:41,349 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) [2021-04-15 03:41:41,349 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 139 transitions. [2021-04-15 03:41:41,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-04-15 03:41:41,350 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:41,350 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:41,574 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:41:41,575 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:41,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:41,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1555556108, now seen corresponding path program 2 times [2021-04-15 03:41:41,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:41,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524688336] [2021-04-15 03:41:41,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:41,612 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:41:41,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524688336] [2021-04-15 03:41:41,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 03:41:41,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-15 03:41:41,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219721156] [2021-04-15 03:41:41,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-15 03:41:41,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:41,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-15 03:41:41,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-15 03:41:41,614 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) [2021-04-15 03:41:41,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:41,632 INFO L93 Difference]: Finished difference Result 118 states and 233 transitions. [2021-04-15 03:41:41,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-15 03:41:41,632 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 [2021-04-15 03:41:41,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:41,633 INFO L225 Difference]: With dead ends: 118 [2021-04-15 03:41:41,633 INFO L226 Difference]: Without dead ends: 111 [2021-04-15 03:41:41,634 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.1ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-15 03:41:41,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-04-15 03:41:41,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 86. [2021-04-15 03:41:41,645 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) [2021-04-15 03:41:41,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 181 transitions. [2021-04-15 03:41:41,645 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 181 transitions. Word has length 18 [2021-04-15 03:41:41,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:41,645 INFO L480 AbstractCegarLoop]: Abstraction has 86 states and 181 transitions. [2021-04-15 03:41:41,645 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) [2021-04-15 03:41:41,646 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 181 transitions. [2021-04-15 03:41:41,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-04-15 03:41:41,650 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:41,650 INFO L551 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:41,650 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-15 03:41:41,650 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:41,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:41,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1351545482, now seen corresponding path program 3 times [2021-04-15 03:41:41,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:41,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015866557] [2021-04-15 03:41:41,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:41,760 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:41,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015866557] [2021-04-15 03:41:41,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216487893] [2021-04-15 03:41:41,760 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) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:41:41,796 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-04-15 03:41:41,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:41:41,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-04-15 03:41:41,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:41:41,930 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:41,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:41:41,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2021-04-15 03:41:41,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371361046] [2021-04-15 03:41:41,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-15 03:41:41,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:41,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-15 03:41:41,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-04-15 03:41:41,932 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) [2021-04-15 03:41:42,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:42,246 INFO L93 Difference]: Finished difference Result 213 states and 407 transitions. [2021-04-15 03:41:42,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-04-15 03:41:42,247 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 [2021-04-15 03:41:42,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:42,248 INFO L225 Difference]: With dead ends: 213 [2021-04-15 03:41:42,249 INFO L226 Difference]: Without dead ends: 213 [2021-04-15 03:41:42,249 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 289.9ms TimeCoverageRelationStatistics Valid=185, Invalid=465, Unknown=0, NotChecked=0, Total=650 [2021-04-15 03:41:42,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-04-15 03:41:42,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 88. [2021-04-15 03:41:42,253 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) [2021-04-15 03:41:42,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 187 transitions. [2021-04-15 03:41:42,254 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 187 transitions. Word has length 20 [2021-04-15 03:41:42,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:42,254 INFO L480 AbstractCegarLoop]: Abstraction has 88 states and 187 transitions. [2021-04-15 03:41:42,254 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) [2021-04-15 03:41:42,254 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 187 transitions. [2021-04-15 03:41:42,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-04-15 03:41:42,255 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:42,255 INFO L551 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:42,476 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:41:42,476 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:42,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:42,477 INFO L82 PathProgramCache]: Analyzing trace with hash -265509966, now seen corresponding path program 4 times [2021-04-15 03:41:42,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:42,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219118764] [2021-04-15 03:41:42,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:42,532 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:42,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219118764] [2021-04-15 03:41:42,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783395073] [2021-04-15 03:41:42,533 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) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:41:42,552 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 03:41:42,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:41:42,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-04-15 03:41:42,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:41:42,675 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:42,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:41:42,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-04-15 03:41:42,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737827636] [2021-04-15 03:41:42,679 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-04-15 03:41:42,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:42,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-04-15 03:41:42,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-04-15 03:41:42,680 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) [2021-04-15 03:41:43,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:43,026 INFO L93 Difference]: Finished difference Result 257 states and 488 transitions. [2021-04-15 03:41:43,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-04-15 03:41:43,026 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 [2021-04-15 03:41:43,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:43,027 INFO L225 Difference]: With dead ends: 257 [2021-04-15 03:41:43,027 INFO L226 Difference]: Without dead ends: 234 [2021-04-15 03:41:43,030 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 291.9ms TimeCoverageRelationStatistics Valid=177, Invalid=473, Unknown=0, NotChecked=0, Total=650 [2021-04-15 03:41:43,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-04-15 03:41:43,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 108. [2021-04-15 03:41:43,037 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) [2021-04-15 03:41:43,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 230 transitions. [2021-04-15 03:41:43,042 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 230 transitions. Word has length 20 [2021-04-15 03:41:43,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:43,043 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 230 transitions. [2021-04-15 03:41:43,043 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) [2021-04-15 03:41:43,043 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 230 transitions. [2021-04-15 03:41:43,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-04-15 03:41:43,045 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:43,045 INFO L551 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:43,248 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:41:43,249 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:43,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:43,249 INFO L82 PathProgramCache]: Analyzing trace with hash -698013310, now seen corresponding path program 5 times [2021-04-15 03:41:43,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:43,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039547307] [2021-04-15 03:41:43,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:43,305 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:43,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039547307] [2021-04-15 03:41:43,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662563744] [2021-04-15 03:41:43,306 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 [2021-04-15 03:41:43,333 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-04-15 03:41:43,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:41:43,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-04-15 03:41:43,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:41:43,458 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:43,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:41:43,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2021-04-15 03:41:43,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22902294] [2021-04-15 03:41:43,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-04-15 03:41:43,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:43,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-04-15 03:41:43,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-04-15 03:41:43,461 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) [2021-04-15 03:41:43,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:43,766 INFO L93 Difference]: Finished difference Result 236 states and 462 transitions. [2021-04-15 03:41:43,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-04-15 03:41:43,767 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 [2021-04-15 03:41:43,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:43,768 INFO L225 Difference]: With dead ends: 236 [2021-04-15 03:41:43,768 INFO L226 Difference]: Without dead ends: 236 [2021-04-15 03:41:43,768 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 247.6ms TimeCoverageRelationStatistics Valid=155, Invalid=351, Unknown=0, NotChecked=0, Total=506 [2021-04-15 03:41:43,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-04-15 03:41:43,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 131. [2021-04-15 03:41:43,776 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) [2021-04-15 03:41:43,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 290 transitions. [2021-04-15 03:41:43,777 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 290 transitions. Word has length 20 [2021-04-15 03:41:43,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:43,777 INFO L480 AbstractCegarLoop]: Abstraction has 131 states and 290 transitions. [2021-04-15 03:41:43,777 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) [2021-04-15 03:41:43,777 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 290 transitions. [2021-04-15 03:41:43,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-04-15 03:41:43,778 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:43,778 INFO L551 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:43,991 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-04-15 03:41:43,991 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:43,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:43,991 INFO L82 PathProgramCache]: Analyzing trace with hash -2081911392, now seen corresponding path program 6 times [2021-04-15 03:41:43,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:43,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993665219] [2021-04-15 03:41:43,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:43,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:44,031 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:44,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993665219] [2021-04-15 03:41:44,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949149837] [2021-04-15 03:41:44,032 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) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:41:44,053 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-04-15 03:41:44,054 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:41:44,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-04-15 03:41:44,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:41:44,163 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:44,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:41:44,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2021-04-15 03:41:44,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944913393] [2021-04-15 03:41:44,164 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-04-15 03:41:44,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:44,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-04-15 03:41:44,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-04-15 03:41:44,165 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) [2021-04-15 03:41:44,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:44,444 INFO L93 Difference]: Finished difference Result 208 states and 429 transitions. [2021-04-15 03:41:44,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-04-15 03:41:44,445 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 [2021-04-15 03:41:44,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:44,446 INFO L225 Difference]: With dead ends: 208 [2021-04-15 03:41:44,446 INFO L226 Difference]: Without dead ends: 204 [2021-04-15 03:41:44,447 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 245.4ms TimeCoverageRelationStatistics Valid=176, Invalid=424, Unknown=0, NotChecked=0, Total=600 [2021-04-15 03:41:44,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-04-15 03:41:44,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 133. [2021-04-15 03:41:44,454 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) [2021-04-15 03:41:44,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 292 transitions. [2021-04-15 03:41:44,455 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 292 transitions. Word has length 20 [2021-04-15 03:41:44,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:44,455 INFO L480 AbstractCegarLoop]: Abstraction has 133 states and 292 transitions. [2021-04-15 03:41:44,455 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) [2021-04-15 03:41:44,455 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 292 transitions. [2021-04-15 03:41:44,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-04-15 03:41:44,455 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:44,456 INFO L551 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:44,678 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:41:44,679 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:44,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:44,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1866660490, now seen corresponding path program 7 times [2021-04-15 03:41:44,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:44,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121729582] [2021-04-15 03:41:44,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:44,731 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:41:44,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121729582] [2021-04-15 03:41:44,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105729222] [2021-04-15 03:41:44,731 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 [2021-04-15 03:41:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:44,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-04-15 03:41:44,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:41:44,886 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:44,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:41:44,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-04-15 03:41:44,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456870303] [2021-04-15 03:41:44,887 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-04-15 03:41:44,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:44,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-04-15 03:41:44,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-04-15 03:41:44,888 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) [2021-04-15 03:41:45,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:45,208 INFO L93 Difference]: Finished difference Result 311 states and 632 transitions. [2021-04-15 03:41:45,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 03:41:45,209 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 [2021-04-15 03:41:45,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:45,213 INFO L225 Difference]: With dead ends: 311 [2021-04-15 03:41:45,213 INFO L226 Difference]: Without dead ends: 311 [2021-04-15 03:41:45,214 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 295.2ms TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2021-04-15 03:41:45,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2021-04-15 03:41:45,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 176. [2021-04-15 03:41:45,225 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) [2021-04-15 03:41:45,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 402 transitions. [2021-04-15 03:41:45,226 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 402 transitions. Word has length 20 [2021-04-15 03:41:45,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:45,226 INFO L480 AbstractCegarLoop]: Abstraction has 176 states and 402 transitions. [2021-04-15 03:41:45,226 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) [2021-04-15 03:41:45,226 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 402 transitions. [2021-04-15 03:41:45,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-04-15 03:41:45,228 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:45,228 INFO L551 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:45,443 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:41:45,443 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:45,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:45,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1163855182, now seen corresponding path program 8 times [2021-04-15 03:41:45,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:45,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419849403] [2021-04-15 03:41:45,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:45,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:45,481 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:41:45,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419849403] [2021-04-15 03:41:45,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889263019] [2021-04-15 03:41:45,482 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 [2021-04-15 03:41:45,502 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 03:41:45,502 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:41:45,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-04-15 03:41:45,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:41:45,617 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:45,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:41:45,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2021-04-15 03:41:45,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555376571] [2021-04-15 03:41:45,619 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-04-15 03:41:45,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:45,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-04-15 03:41:45,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-04-15 03:41:45,620 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) [2021-04-15 03:41:45,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:45,876 INFO L93 Difference]: Finished difference Result 248 states and 522 transitions. [2021-04-15 03:41:45,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-04-15 03:41:45,877 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 [2021-04-15 03:41:45,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:45,878 INFO L225 Difference]: With dead ends: 248 [2021-04-15 03:41:45,878 INFO L226 Difference]: Without dead ends: 242 [2021-04-15 03:41:45,879 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 210.0ms TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2021-04-15 03:41:45,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-04-15 03:41:45,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 182. [2021-04-15 03:41:45,888 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) [2021-04-15 03:41:45,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 421 transitions. [2021-04-15 03:41:45,891 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 421 transitions. Word has length 20 [2021-04-15 03:41:45,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:45,891 INFO L480 AbstractCegarLoop]: Abstraction has 182 states and 421 transitions. [2021-04-15 03:41:45,891 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) [2021-04-15 03:41:45,891 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 421 transitions. [2021-04-15 03:41:45,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-04-15 03:41:45,893 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:45,893 INFO L551 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:46,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-04-15 03:41:46,115 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:46,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:46,116 INFO L82 PathProgramCache]: Analyzing trace with hash 482286172, now seen corresponding path program 9 times [2021-04-15 03:41:46,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:46,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694586692] [2021-04-15 03:41:46,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:46,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:46,158 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:41:46,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694586692] [2021-04-15 03:41:46,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884277371] [2021-04-15 03:41:46,159 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) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:41:46,178 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-04-15 03:41:46,178 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:41:46,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-04-15 03:41:46,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:41:46,282 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:46,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:41:46,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2021-04-15 03:41:46,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26519765] [2021-04-15 03:41:46,283 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-04-15 03:41:46,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:46,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-04-15 03:41:46,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-04-15 03:41:46,283 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) [2021-04-15 03:41:46,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:46,553 INFO L93 Difference]: Finished difference Result 300 states and 621 transitions. [2021-04-15 03:41:46,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-04-15 03:41:46,554 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 [2021-04-15 03:41:46,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:46,555 INFO L225 Difference]: With dead ends: 300 [2021-04-15 03:41:46,555 INFO L226 Difference]: Without dead ends: 296 [2021-04-15 03:41:46,556 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 209.7ms TimeCoverageRelationStatistics Valid=168, Invalid=384, Unknown=0, NotChecked=0, Total=552 [2021-04-15 03:41:46,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2021-04-15 03:41:46,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 182. [2021-04-15 03:41:46,561 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) [2021-04-15 03:41:46,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 419 transitions. [2021-04-15 03:41:46,562 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 419 transitions. Word has length 20 [2021-04-15 03:41:46,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:46,562 INFO L480 AbstractCegarLoop]: Abstraction has 182 states and 419 transitions. [2021-04-15 03:41:46,562 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) [2021-04-15 03:41:46,562 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 419 transitions. [2021-04-15 03:41:46,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-04-15 03:41:46,563 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:46,563 INFO L551 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:46,780 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:41:46,781 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:46,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:46,781 INFO L82 PathProgramCache]: Analyzing trace with hash -24060094, now seen corresponding path program 10 times [2021-04-15 03:41:46,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:46,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841317064] [2021-04-15 03:41:46,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:46,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:46,856 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:46,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841317064] [2021-04-15 03:41:46,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374470683] [2021-04-15 03:41:46,856 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 [2021-04-15 03:41:46,889 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 03:41:46,889 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:41:46,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-04-15 03:41:46,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:41:46,985 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:46,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:41:46,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-04-15 03:41:46,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182970951] [2021-04-15 03:41:46,986 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-04-15 03:41:46,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:46,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-04-15 03:41:46,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-04-15 03:41:46,987 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) [2021-04-15 03:41:47,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:47,255 INFO L93 Difference]: Finished difference Result 296 states and 623 transitions. [2021-04-15 03:41:47,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 03:41:47,255 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 [2021-04-15 03:41:47,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:47,257 INFO L225 Difference]: With dead ends: 296 [2021-04-15 03:41:47,257 INFO L226 Difference]: Without dead ends: 284 [2021-04-15 03:41:47,257 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 253.4ms TimeCoverageRelationStatistics Valid=197, Invalid=505, Unknown=0, NotChecked=0, Total=702 [2021-04-15 03:41:47,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2021-04-15 03:41:47,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 193. [2021-04-15 03:41:47,263 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) [2021-04-15 03:41:47,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 444 transitions. [2021-04-15 03:41:47,264 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 444 transitions. Word has length 20 [2021-04-15 03:41:47,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:47,264 INFO L480 AbstractCegarLoop]: Abstraction has 193 states and 444 transitions. [2021-04-15 03:41:47,264 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) [2021-04-15 03:41:47,264 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 444 transitions. [2021-04-15 03:41:47,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-04-15 03:41:47,265 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:47,265 INFO L551 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:47,472 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-04-15 03:41:47,473 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:47,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:47,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1616828084, now seen corresponding path program 11 times [2021-04-15 03:41:47,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:47,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547961732] [2021-04-15 03:41:47,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:47,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:47,515 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:47,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547961732] [2021-04-15 03:41:47,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444227946] [2021-04-15 03:41:47,515 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 [2021-04-15 03:41:47,557 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-04-15 03:41:47,557 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:41:47,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:41:47,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:41:47,616 INFO L354 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2021-04-15 03:41:47,617 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 [2021-04-15 03:41:47,646 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-04-15 03:41:47,653 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:41:47,660 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-04-15 03:41:47,660 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:25 [2021-04-15 03:41:47,730 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-04-15 03:41:47,731 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 [2021-04-15 03:41:47,734 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:41:47,740 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-04-15 03:41:47,740 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 [2021-04-15 03:41:47,742 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-04-15 03:41:47,744 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:41:47,744 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:41:47,745 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:3 [2021-04-15 03:41:47,750 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:47,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:41:47,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2021-04-15 03:41:47,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721877006] [2021-04-15 03:41:47,752 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-04-15 03:41:47,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:47,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-04-15 03:41:47,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-04-15 03:41:47,753 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) [2021-04-15 03:41:47,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:47,796 INFO L93 Difference]: Finished difference Result 341 states and 750 transitions. [2021-04-15 03:41:47,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-15 03:41:47,796 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 [2021-04-15 03:41:47,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:47,798 INFO L225 Difference]: With dead ends: 341 [2021-04-15 03:41:47,798 INFO L226 Difference]: Without dead ends: 334 [2021-04-15 03:41:47,799 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 60.5ms TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-04-15 03:41:47,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2021-04-15 03:41:47,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 263. [2021-04-15 03:41:47,806 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) [2021-04-15 03:41:47,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 623 transitions. [2021-04-15 03:41:47,808 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 623 transitions. Word has length 22 [2021-04-15 03:41:47,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:47,808 INFO L480 AbstractCegarLoop]: Abstraction has 263 states and 623 transitions. [2021-04-15 03:41:47,808 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) [2021-04-15 03:41:47,809 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 623 transitions. [2021-04-15 03:41:47,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-04-15 03:41:47,809 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:47,809 INFO L551 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:48,024 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-04-15 03:41:48,025 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:48,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:48,025 INFO L82 PathProgramCache]: Analyzing trace with hash -462338892, now seen corresponding path program 12 times [2021-04-15 03:41:48,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:48,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195911042] [2021-04-15 03:41:48,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:48,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:48,055 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:41:48,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195911042] [2021-04-15 03:41:48,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566749330] [2021-04-15 03:41:48,055 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 [2021-04-15 03:41:48,084 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-04-15 03:41:48,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:41:48,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 19 conjunts are in the unsatisfiable core [2021-04-15 03:41:48,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:41:48,152 INFO L446 ElimStorePlain]: Different costs {1=[f], 3=[f_inv]} [2021-04-15 03:41:48,157 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:41:48,158 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 [2021-04-15 03:41:48,174 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-04-15 03:41:48,180 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:41:48,187 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:41:48,187 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 [2021-04-15 03:41:48,192 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-04-15 03:41:48,193 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:41:48,194 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:41:48,194 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:53, output treesize:3 [2021-04-15 03:41:48,204 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:41:48,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:41:48,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2021-04-15 03:41:48,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77722029] [2021-04-15 03:41:48,206 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-04-15 03:41:48,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:48,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-04-15 03:41:48,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-04-15 03:41:48,206 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) [2021-04-15 03:41:48,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:48,246 INFO L93 Difference]: Finished difference Result 405 states and 917 transitions. [2021-04-15 03:41:48,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-15 03:41:48,246 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 [2021-04-15 03:41:48,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:48,248 INFO L225 Difference]: With dead ends: 405 [2021-04-15 03:41:48,248 INFO L226 Difference]: Without dead ends: 396 [2021-04-15 03:41:48,249 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 46.9ms TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-04-15 03:41:48,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2021-04-15 03:41:48,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 318. [2021-04-15 03:41:48,258 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) [2021-04-15 03:41:48,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 775 transitions. [2021-04-15 03:41:48,259 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 775 transitions. Word has length 22 [2021-04-15 03:41:48,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:48,259 INFO L480 AbstractCegarLoop]: Abstraction has 318 states and 775 transitions. [2021-04-15 03:41:48,259 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) [2021-04-15 03:41:48,259 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 775 transitions. [2021-04-15 03:41:48,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-04-15 03:41:48,260 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:48,260 INFO L551 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:48,483 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:41:48,483 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:48,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:48,484 INFO L82 PathProgramCache]: Analyzing trace with hash -2570572, now seen corresponding path program 13 times [2021-04-15 03:41:48,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:48,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801800294] [2021-04-15 03:41:48,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:48,523 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:41:48,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801800294] [2021-04-15 03:41:48,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903186632] [2021-04-15 03:41:48,524 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 [2021-04-15 03:41:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:48,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 15 conjunts are in the unsatisfiable core [2021-04-15 03:41:48,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:41:48,591 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:41:48,591 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 [2021-04-15 03:41:48,593 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:41:48,598 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:41:48,599 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:41:48,599 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:20 [2021-04-15 03:41:48,672 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-04-15 03:41:48,673 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 [2021-04-15 03:41:48,675 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:41:48,679 INFO L628 ElimStorePlain]: treesize reduction 21, result has 12.5 percent of original size [2021-04-15 03:41:48,679 INFO L518 ElimStorePlain]: Eliminatee v_prenex_2 vanished before elimination [2021-04-15 03:41:48,679 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:41:48,679 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:42, output treesize:3 [2021-04-15 03:41:48,689 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:41:48,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:41:48,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2021-04-15 03:41:48,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908751277] [2021-04-15 03:41:48,690 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-04-15 03:41:48,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:48,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-04-15 03:41:48,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-04-15 03:41:48,691 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) [2021-04-15 03:41:48,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:48,726 INFO L93 Difference]: Finished difference Result 499 states and 1143 transitions. [2021-04-15 03:41:48,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-15 03:41:48,726 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 [2021-04-15 03:41:48,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:48,729 INFO L225 Difference]: With dead ends: 499 [2021-04-15 03:41:48,729 INFO L226 Difference]: Without dead ends: 492 [2021-04-15 03:41:48,730 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 46.7ms TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-04-15 03:41:48,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2021-04-15 03:41:48,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 374. [2021-04-15 03:41:48,740 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) [2021-04-15 03:41:48,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 923 transitions. [2021-04-15 03:41:48,742 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 923 transitions. Word has length 22 [2021-04-15 03:41:48,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:48,742 INFO L480 AbstractCegarLoop]: Abstraction has 374 states and 923 transitions. [2021-04-15 03:41:48,742 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) [2021-04-15 03:41:48,742 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 923 transitions. [2021-04-15 03:41:48,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-04-15 03:41:48,743 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:48,743 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:48,964 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-04-15 03:41:48,965 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:48,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:48,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1932504778, now seen corresponding path program 14 times [2021-04-15 03:41:48,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:48,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427873941] [2021-04-15 03:41:48,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:48,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:49,058 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:49,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427873941] [2021-04-15 03:41:49,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141338199] [2021-04-15 03:41:49,058 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 [2021-04-15 03:41:49,086 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 03:41:49,087 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:41:49,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-04-15 03:41:49,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:41:49,230 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:49,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:41:49,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2021-04-15 03:41:49,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994251651] [2021-04-15 03:41:49,231 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-04-15 03:41:49,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:49,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-04-15 03:41:49,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2021-04-15 03:41:49,232 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) [2021-04-15 03:41:49,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:49,762 INFO L93 Difference]: Finished difference Result 665 states and 1470 transitions. [2021-04-15 03:41:49,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-04-15 03:41:49,763 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 [2021-04-15 03:41:49,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:49,765 INFO L225 Difference]: With dead ends: 665 [2021-04-15 03:41:49,766 INFO L226 Difference]: Without dead ends: 665 [2021-04-15 03:41:49,766 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 420.7ms TimeCoverageRelationStatistics Valid=402, Invalid=1080, Unknown=0, NotChecked=0, Total=1482 [2021-04-15 03:41:49,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2021-04-15 03:41:49,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 325. [2021-04-15 03:41:49,775 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) [2021-04-15 03:41:49,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 794 transitions. [2021-04-15 03:41:49,776 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 794 transitions. Word has length 24 [2021-04-15 03:41:49,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:49,777 INFO L480 AbstractCegarLoop]: Abstraction has 325 states and 794 transitions. [2021-04-15 03:41:49,777 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) [2021-04-15 03:41:49,777 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 794 transitions. [2021-04-15 03:41:49,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-04-15 03:41:49,779 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:49,779 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:49,996 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:41:49,997 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:49,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:49,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1929426830, now seen corresponding path program 15 times [2021-04-15 03:41:49,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:49,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252873685] [2021-04-15 03:41:49,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:50,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:50,067 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:50,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252873685] [2021-04-15 03:41:50,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913880271] [2021-04-15 03:41:50,067 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) [2021-04-15 03:41:50,101 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-04-15 03:41:50,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:41:50,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-04-15 03:41:50,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:41:50,244 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:50,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:41:50,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-04-15 03:41:50,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970004922] [2021-04-15 03:41:50,245 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-04-15 03:41:50,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:50,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-04-15 03:41:50,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2021-04-15 03:41:50,246 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) [2021-04-15 03:41:50,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:50,859 INFO L93 Difference]: Finished difference Result 786 states and 1670 transitions. [2021-04-15 03:41:50,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-04-15 03:41:50,859 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 [2021-04-15 03:41:50,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:50,863 INFO L225 Difference]: With dead ends: 786 [2021-04-15 03:41:50,863 INFO L226 Difference]: Without dead ends: 742 [2021-04-15 03:41:50,863 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 544.6ms TimeCoverageRelationStatistics Valid=449, Invalid=1357, Unknown=0, NotChecked=0, Total=1806 [2021-04-15 03:41:50,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2021-04-15 03:41:50,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 342. [2021-04-15 03:41:50,875 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) [2021-04-15 03:41:50,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 823 transitions. [2021-04-15 03:41:50,876 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 823 transitions. Word has length 24 [2021-04-15 03:41:50,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:50,876 INFO L480 AbstractCegarLoop]: Abstraction has 342 states and 823 transitions. [2021-04-15 03:41:50,876 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) [2021-04-15 03:41:50,877 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 823 transitions. [2021-04-15 03:41:50,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-04-15 03:41:50,877 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:50,877 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:51,094 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:41:51,094 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:51,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:51,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1265887354, now seen corresponding path program 16 times [2021-04-15 03:41:51,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:51,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577892950] [2021-04-15 03:41:51,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:51,139 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:51,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577892950] [2021-04-15 03:41:51,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445661263] [2021-04-15 03:41:51,140 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 [2021-04-15 03:41:51,158 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 03:41:51,158 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:41:51,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-04-15 03:41:51,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:41:51,294 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:51,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:41:51,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2021-04-15 03:41:51,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944620183] [2021-04-15 03:41:51,295 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-15 03:41:51,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:51,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-15 03:41:51,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-04-15 03:41:51,295 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) [2021-04-15 03:41:51,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:51,873 INFO L93 Difference]: Finished difference Result 742 states and 1645 transitions. [2021-04-15 03:41:51,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-04-15 03:41:51,873 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 [2021-04-15 03:41:51,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:51,876 INFO L225 Difference]: With dead ends: 742 [2021-04-15 03:41:51,876 INFO L226 Difference]: Without dead ends: 740 [2021-04-15 03:41:51,877 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 501.0ms TimeCoverageRelationStatistics Valid=387, Invalid=945, Unknown=0, NotChecked=0, Total=1332 [2021-04-15 03:41:51,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2021-04-15 03:41:51,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 404. [2021-04-15 03:41:51,889 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) [2021-04-15 03:41:51,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 977 transitions. [2021-04-15 03:41:51,890 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 977 transitions. Word has length 24 [2021-04-15 03:41:51,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:51,891 INFO L480 AbstractCegarLoop]: Abstraction has 404 states and 977 transitions. [2021-04-15 03:41:51,891 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) [2021-04-15 03:41:51,891 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 977 transitions. [2021-04-15 03:41:51,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-04-15 03:41:51,893 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:51,893 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:52,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:41:52,115 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:52,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:52,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1645181860, now seen corresponding path program 17 times [2021-04-15 03:41:52,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:52,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801253833] [2021-04-15 03:41:52,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:52,171 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:52,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801253833] [2021-04-15 03:41:52,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009255701] [2021-04-15 03:41:52,171 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 [2021-04-15 03:41:52,194 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-04-15 03:41:52,194 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:41:52,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-04-15 03:41:52,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:41:52,334 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:52,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:41:52,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2021-04-15 03:41:52,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870925368] [2021-04-15 03:41:52,335 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-15 03:41:52,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:52,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-15 03:41:52,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2021-04-15 03:41:52,336 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) [2021-04-15 03:41:52,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:52,790 INFO L93 Difference]: Finished difference Result 548 states and 1247 transitions. [2021-04-15 03:41:52,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-04-15 03:41:52,790 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 [2021-04-15 03:41:52,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:52,792 INFO L225 Difference]: With dead ends: 548 [2021-04-15 03:41:52,792 INFO L226 Difference]: Without dead ends: 544 [2021-04-15 03:41:52,793 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 427.4ms TimeCoverageRelationStatistics Valid=356, Invalid=976, Unknown=0, NotChecked=0, Total=1332 [2021-04-15 03:41:52,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2021-04-15 03:41:52,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 404. [2021-04-15 03:41:52,802 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) [2021-04-15 03:41:52,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 976 transitions. [2021-04-15 03:41:52,803 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 976 transitions. Word has length 24 [2021-04-15 03:41:52,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:52,803 INFO L480 AbstractCegarLoop]: Abstraction has 404 states and 976 transitions. [2021-04-15 03:41:52,803 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) [2021-04-15 03:41:52,803 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 976 transitions. [2021-04-15 03:41:52,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-04-15 03:41:52,804 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:52,804 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:53,020 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-04-15 03:41:53,021 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:53,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:53,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1445869170, now seen corresponding path program 18 times [2021-04-15 03:41:53,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:53,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58401598] [2021-04-15 03:41:53,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:53,068 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:41:53,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58401598] [2021-04-15 03:41:53,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343212584] [2021-04-15 03:41:53,069 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 [2021-04-15 03:41:53,087 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-04-15 03:41:53,088 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:41:53,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-04-15 03:41:53,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:41:53,205 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:53,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:41:53,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2021-04-15 03:41:53,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742393428] [2021-04-15 03:41:53,206 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-15 03:41:53,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:53,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-15 03:41:53,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2021-04-15 03:41:53,207 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) [2021-04-15 03:41:53,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:53,593 INFO L93 Difference]: Finished difference Result 648 states and 1454 transitions. [2021-04-15 03:41:53,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-04-15 03:41:53,594 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 [2021-04-15 03:41:53,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:53,596 INFO L225 Difference]: With dead ends: 648 [2021-04-15 03:41:53,596 INFO L226 Difference]: Without dead ends: 636 [2021-04-15 03:41:53,598 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 316.5ms TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2021-04-15 03:41:53,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2021-04-15 03:41:53,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 426. [2021-04-15 03:41:53,608 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) [2021-04-15 03:41:53,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 1036 transitions. [2021-04-15 03:41:53,609 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 1036 transitions. Word has length 24 [2021-04-15 03:41:53,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:53,609 INFO L480 AbstractCegarLoop]: Abstraction has 426 states and 1036 transitions. [2021-04-15 03:41:53,609 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) [2021-04-15 03:41:53,610 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 1036 transitions. [2021-04-15 03:41:53,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-04-15 03:41:53,610 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:53,610 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:53,828 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-04-15 03:41:53,829 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:53,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:53,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1709303038, now seen corresponding path program 19 times [2021-04-15 03:41:53,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:53,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86073972] [2021-04-15 03:41:53,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:53,874 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:53,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86073972] [2021-04-15 03:41:53,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339698512] [2021-04-15 03:41:53,875 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) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:41:53,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:53,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-04-15 03:41:53,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:41:54,028 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:54,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:41:54,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2021-04-15 03:41:54,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336219014] [2021-04-15 03:41:54,029 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-15 03:41:54,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:54,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-15 03:41:54,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2021-04-15 03:41:54,029 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) [2021-04-15 03:41:54,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:54,505 INFO L93 Difference]: Finished difference Result 690 states and 1541 transitions. [2021-04-15 03:41:54,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-04-15 03:41:54,506 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 [2021-04-15 03:41:54,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:54,508 INFO L225 Difference]: With dead ends: 690 [2021-04-15 03:41:54,508 INFO L226 Difference]: Without dead ends: 676 [2021-04-15 03:41:54,509 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 412.5ms TimeCoverageRelationStatistics Valid=382, Invalid=1100, Unknown=0, NotChecked=0, Total=1482 [2021-04-15 03:41:54,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2021-04-15 03:41:54,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 412. [2021-04-15 03:41:54,518 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) [2021-04-15 03:41:54,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 994 transitions. [2021-04-15 03:41:54,519 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 994 transitions. Word has length 24 [2021-04-15 03:41:54,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:54,520 INFO L480 AbstractCegarLoop]: Abstraction has 412 states and 994 transitions. [2021-04-15 03:41:54,520 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) [2021-04-15 03:41:54,520 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 994 transitions. [2021-04-15 03:41:54,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-04-15 03:41:54,521 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:54,521 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:54,736 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-04-15 03:41:54,737 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:54,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:54,737 INFO L82 PathProgramCache]: Analyzing trace with hash 919841334, now seen corresponding path program 20 times [2021-04-15 03:41:54,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:54,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459705675] [2021-04-15 03:41:54,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:54,802 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:41:54,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459705675] [2021-04-15 03:41:54,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185830220] [2021-04-15 03:41:54,803 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 [2021-04-15 03:41:54,821 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 03:41:54,822 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:41:54,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-04-15 03:41:54,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:41:54,953 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:54,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:41:54,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-04-15 03:41:54,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694827015] [2021-04-15 03:41:54,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-04-15 03:41:54,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:54,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-04-15 03:41:54,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2021-04-15 03:41:54,954 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) [2021-04-15 03:41:55,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:55,484 INFO L93 Difference]: Finished difference Result 791 states and 1734 transitions. [2021-04-15 03:41:55,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-04-15 03:41:55,485 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 [2021-04-15 03:41:55,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:55,488 INFO L225 Difference]: With dead ends: 791 [2021-04-15 03:41:55,488 INFO L226 Difference]: Without dead ends: 791 [2021-04-15 03:41:55,488 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 429.8ms TimeCoverageRelationStatistics Valid=414, Invalid=1068, Unknown=0, NotChecked=0, Total=1482 [2021-04-15 03:41:55,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2021-04-15 03:41:55,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 429. [2021-04-15 03:41:55,498 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) [2021-04-15 03:41:55,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 1026 transitions. [2021-04-15 03:41:55,499 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 1026 transitions. Word has length 24 [2021-04-15 03:41:55,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:55,499 INFO L480 AbstractCegarLoop]: Abstraction has 429 states and 1026 transitions. [2021-04-15 03:41:55,499 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) [2021-04-15 03:41:55,500 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 1026 transitions. [2021-04-15 03:41:55,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-04-15 03:41:55,500 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:55,500 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:55,716 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-04-15 03:41:55,717 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:55,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:55,717 INFO L82 PathProgramCache]: Analyzing trace with hash 2005876850, now seen corresponding path program 21 times [2021-04-15 03:41:55,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:55,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009249367] [2021-04-15 03:41:55,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:55,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:55,767 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:41:55,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009249367] [2021-04-15 03:41:55,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030793830] [2021-04-15 03:41:55,768 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 [2021-04-15 03:41:55,785 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-04-15 03:41:55,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:41:55,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-04-15 03:41:55,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:41:55,913 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:55,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:41:55,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2021-04-15 03:41:55,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108168289] [2021-04-15 03:41:55,914 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-15 03:41:55,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:55,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-15 03:41:55,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2021-04-15 03:41:55,914 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) [2021-04-15 03:41:56,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:56,321 INFO L93 Difference]: Finished difference Result 588 states and 1296 transitions. [2021-04-15 03:41:56,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-04-15 03:41:56,321 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 [2021-04-15 03:41:56,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:56,323 INFO L225 Difference]: With dead ends: 588 [2021-04-15 03:41:56,323 INFO L226 Difference]: Without dead ends: 570 [2021-04-15 03:41:56,323 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 354.1ms TimeCoverageRelationStatistics Valid=286, Invalid=904, Unknown=0, NotChecked=0, Total=1190 [2021-04-15 03:41:56,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2021-04-15 03:41:56,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 423. [2021-04-15 03:41:56,331 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) [2021-04-15 03:41:56,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 1012 transitions. [2021-04-15 03:41:56,332 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 1012 transitions. Word has length 24 [2021-04-15 03:41:56,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:56,332 INFO L480 AbstractCegarLoop]: Abstraction has 423 states and 1012 transitions. [2021-04-15 03:41:56,332 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) [2021-04-15 03:41:56,332 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 1012 transitions. [2021-04-15 03:41:56,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-04-15 03:41:56,333 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:56,333 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:56,548 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-04-15 03:41:56,549 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:56,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:56,549 INFO L82 PathProgramCache]: Analyzing trace with hash 198787894, now seen corresponding path program 22 times [2021-04-15 03:41:56,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:56,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916246153] [2021-04-15 03:41:56,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:56,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:56,604 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:41:56,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916246153] [2021-04-15 03:41:56,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328545832] [2021-04-15 03:41:56,604 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 [2021-04-15 03:41:56,621 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 03:41:56,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:41:56,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-04-15 03:41:56,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:41:56,744 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:56,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:41:56,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2021-04-15 03:41:56,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132052447] [2021-04-15 03:41:56,744 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-15 03:41:56,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:56,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-15 03:41:56,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2021-04-15 03:41:56,745 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) [2021-04-15 03:41:57,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:57,250 INFO L93 Difference]: Finished difference Result 898 states and 2037 transitions. [2021-04-15 03:41:57,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-04-15 03:41:57,250 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 [2021-04-15 03:41:57,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:57,253 INFO L225 Difference]: With dead ends: 898 [2021-04-15 03:41:57,253 INFO L226 Difference]: Without dead ends: 898 [2021-04-15 03:41:57,254 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 466.7ms TimeCoverageRelationStatistics Valid=520, Invalid=1202, Unknown=0, NotChecked=0, Total=1722 [2021-04-15 03:41:57,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2021-04-15 03:41:57,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 622. [2021-04-15 03:41:57,265 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) [2021-04-15 03:41:57,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 1529 transitions. [2021-04-15 03:41:57,267 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 1529 transitions. Word has length 24 [2021-04-15 03:41:57,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:57,267 INFO L480 AbstractCegarLoop]: Abstraction has 622 states and 1529 transitions. [2021-04-15 03:41:57,267 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) [2021-04-15 03:41:57,267 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 1529 transitions. [2021-04-15 03:41:57,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-04-15 03:41:57,268 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:57,268 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:57,484 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:41:57,485 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:57,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:57,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1747232740, now seen corresponding path program 23 times [2021-04-15 03:41:57,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:57,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407034034] [2021-04-15 03:41:57,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:57,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:57,530 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:41:57,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407034034] [2021-04-15 03:41:57,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536862417] [2021-04-15 03:41:57,530 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 [2021-04-15 03:41:57,552 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-04-15 03:41:57,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:41:57,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-04-15 03:41:57,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:41:57,678 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:57,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:41:57,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2021-04-15 03:41:57,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918567667] [2021-04-15 03:41:57,679 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-15 03:41:57,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:57,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-15 03:41:57,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2021-04-15 03:41:57,679 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) [2021-04-15 03:41:58,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:58,055 INFO L93 Difference]: Finished difference Result 871 states and 1982 transitions. [2021-04-15 03:41:58,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-04-15 03:41:58,056 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 [2021-04-15 03:41:58,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:58,058 INFO L225 Difference]: With dead ends: 871 [2021-04-15 03:41:58,058 INFO L226 Difference]: Without dead ends: 867 [2021-04-15 03:41:58,058 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 354.3ms TimeCoverageRelationStatistics Valid=342, Invalid=848, Unknown=0, NotChecked=0, Total=1190 [2021-04-15 03:41:58,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2021-04-15 03:41:58,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 622. [2021-04-15 03:41:58,068 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) [2021-04-15 03:41:58,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 1525 transitions. [2021-04-15 03:41:58,069 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 1525 transitions. Word has length 24 [2021-04-15 03:41:58,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:58,069 INFO L480 AbstractCegarLoop]: Abstraction has 622 states and 1525 transitions. [2021-04-15 03:41:58,069 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) [2021-04-15 03:41:58,070 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 1525 transitions. [2021-04-15 03:41:58,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-04-15 03:41:58,071 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:58,071 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:58,292 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-04-15 03:41:58,292 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:58,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:58,293 INFO L82 PathProgramCache]: Analyzing trace with hash 2041388290, now seen corresponding path program 24 times [2021-04-15 03:41:58,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:58,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453546874] [2021-04-15 03:41:58,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:58,337 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:41:58,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453546874] [2021-04-15 03:41:58,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518860341] [2021-04-15 03:41:58,337 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 [2021-04-15 03:41:58,361 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-04-15 03:41:58,361 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:41:58,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-04-15 03:41:58,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:41:58,483 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:58,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:41:58,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2021-04-15 03:41:58,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328659920] [2021-04-15 03:41:58,484 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-15 03:41:58,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:58,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-15 03:41:58,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2021-04-15 03:41:58,485 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) [2021-04-15 03:41:58,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:58,875 INFO L93 Difference]: Finished difference Result 948 states and 2156 transitions. [2021-04-15 03:41:58,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-04-15 03:41:58,876 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 [2021-04-15 03:41:58,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:58,878 INFO L225 Difference]: With dead ends: 948 [2021-04-15 03:41:58,878 INFO L226 Difference]: Without dead ends: 936 [2021-04-15 03:41:58,879 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 364.8ms TimeCoverageRelationStatistics Valid=355, Invalid=977, Unknown=0, NotChecked=0, Total=1332 [2021-04-15 03:41:58,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2021-04-15 03:41:58,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 675. [2021-04-15 03:41:58,889 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) [2021-04-15 03:41:58,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 1659 transitions. [2021-04-15 03:41:58,891 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 1659 transitions. Word has length 24 [2021-04-15 03:41:58,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:58,891 INFO L480 AbstractCegarLoop]: Abstraction has 675 states and 1659 transitions. [2021-04-15 03:41:58,891 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) [2021-04-15 03:41:58,891 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 1659 transitions. [2021-04-15 03:41:58,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-04-15 03:41:58,893 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:58,893 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:59,106 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-04-15 03:41:59,106 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:59,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:59,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1814166910, now seen corresponding path program 25 times [2021-04-15 03:41:59,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:59,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539410540] [2021-04-15 03:41:59,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:59,161 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:59,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539410540] [2021-04-15 03:41:59,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406644873] [2021-04-15 03:41:59,162 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) [2021-04-15 03:41:59,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:41:59,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-04-15 03:41:59,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:41:59,319 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:41:59,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:41:59,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-04-15 03:41:59,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111611728] [2021-04-15 03:41:59,321 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-04-15 03:41:59,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:41:59,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-04-15 03:41:59,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2021-04-15 03:41:59,322 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) [2021-04-15 03:41:59,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:41:59,750 INFO L93 Difference]: Finished difference Result 948 states and 2180 transitions. [2021-04-15 03:41:59,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-04-15 03:41:59,753 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 [2021-04-15 03:41:59,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:41:59,756 INFO L225 Difference]: With dead ends: 948 [2021-04-15 03:41:59,756 INFO L226 Difference]: Without dead ends: 928 [2021-04-15 03:41:59,757 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 414.9ms TimeCoverageRelationStatistics Valid=419, Invalid=1221, Unknown=0, NotChecked=0, Total=1640 [2021-04-15 03:41:59,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2021-04-15 03:41:59,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 699. [2021-04-15 03:41:59,768 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) [2021-04-15 03:41:59,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 1725 transitions. [2021-04-15 03:41:59,770 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 1725 transitions. Word has length 24 [2021-04-15 03:41:59,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:41:59,770 INFO L480 AbstractCegarLoop]: Abstraction has 699 states and 1725 transitions. [2021-04-15 03:41:59,770 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) [2021-04-15 03:41:59,770 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 1725 transitions. [2021-04-15 03:41:59,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-04-15 03:41:59,771 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:41:59,771 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:41:59,992 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2021-04-15 03:41:59,993 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:41:59,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:41:59,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1660693108, now seen corresponding path program 26 times [2021-04-15 03:41:59,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:41:59,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109221060] [2021-04-15 03:41:59,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:41:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:00,026 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:00,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109221060] [2021-04-15 03:42:00,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785897425] [2021-04-15 03:42:00,027 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 [2021-04-15 03:42:00,077 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 03:42:00,077 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:00,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 23 conjunts are in the unsatisfiable core [2021-04-15 03:42:00,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:00,156 INFO L354 Elim1Store]: treesize reduction 32, result has 34.7 percent of original size [2021-04-15 03:42:00,156 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 [2021-04-15 03:42:00,181 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-04-15 03:42:00,191 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:42:00,202 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-04-15 03:42:00,202 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:47 [2021-04-15 03:42:00,379 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-04-15 03:42:00,380 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 [2021-04-15 03:42:00,381 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:00,397 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:42:00,408 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-04-15 03:42:00,409 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 [2021-04-15 03:42:00,410 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:00,424 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:42:00,440 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-04-15 03:42:00,441 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 [2021-04-15 03:42:00,443 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:00,448 INFO L628 ElimStorePlain]: treesize reduction 16, result has 15.8 percent of original size [2021-04-15 03:42:00,449 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:42:00,449 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:103, output treesize:3 [2021-04-15 03:42:00,455 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:00,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:00,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2021-04-15 03:42:00,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782976549] [2021-04-15 03:42:00,456 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-04-15 03:42:00,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:00,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-04-15 03:42:00,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-04-15 03:42:00,457 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) [2021-04-15 03:42:00,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:00,548 INFO L93 Difference]: Finished difference Result 1035 states and 2478 transitions. [2021-04-15 03:42:00,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-15 03:42:00,548 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 [2021-04-15 03:42:00,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:00,551 INFO L225 Difference]: With dead ends: 1035 [2021-04-15 03:42:00,551 INFO L226 Difference]: Without dead ends: 1028 [2021-04-15 03:42:00,552 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 161.6ms TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-04-15 03:42:00,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2021-04-15 03:42:00,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 866. [2021-04-15 03:42:00,574 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) [2021-04-15 03:42:00,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 2159 transitions. [2021-04-15 03:42:00,576 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 2159 transitions. Word has length 26 [2021-04-15 03:42:00,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:00,576 INFO L480 AbstractCegarLoop]: Abstraction has 866 states and 2159 transitions. [2021-04-15 03:42:00,576 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) [2021-04-15 03:42:00,576 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 2159 transitions. [2021-04-15 03:42:00,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-04-15 03:42:00,578 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:00,578 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:00,787 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:00,787 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:00,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:00,788 INFO L82 PathProgramCache]: Analyzing trace with hash -439799948, now seen corresponding path program 27 times [2021-04-15 03:42:00,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:00,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120493757] [2021-04-15 03:42:00,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:00,813 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:42:00,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120493757] [2021-04-15 03:42:00,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763755450] [2021-04-15 03:42:00,814 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 [2021-04-15 03:42:00,841 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-04-15 03:42:00,841 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:00,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 25 conjunts are in the unsatisfiable core [2021-04-15 03:42:00,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:00,946 INFO L446 ElimStorePlain]: Different costs {3=[f], 10=[f_inv]} [2021-04-15 03:42:00,965 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-04-15 03:42:00,965 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 [2021-04-15 03:42:00,982 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-04-15 03:42:00,993 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:42:01,004 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:42:01,005 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 [2021-04-15 03:42:01,026 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:01,028 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:42:01,028 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:42:01,028 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:84, output treesize:3 [2021-04-15 03:42:01,038 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:42:01,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:01,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2021-04-15 03:42:01,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280938229] [2021-04-15 03:42:01,039 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-04-15 03:42:01,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:01,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-04-15 03:42:01,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-04-15 03:42:01,040 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) [2021-04-15 03:42:01,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:01,102 INFO L93 Difference]: Finished difference Result 1098 states and 2666 transitions. [2021-04-15 03:42:01,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-15 03:42:01,103 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 [2021-04-15 03:42:01,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:01,107 INFO L225 Difference]: With dead ends: 1098 [2021-04-15 03:42:01,107 INFO L226 Difference]: Without dead ends: 1089 [2021-04-15 03:42:01,108 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 70.6ms TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-04-15 03:42:01,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2021-04-15 03:42:01,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 972. [2021-04-15 03:42:01,125 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) [2021-04-15 03:42:01,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 2459 transitions. [2021-04-15 03:42:01,127 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 2459 transitions. Word has length 26 [2021-04-15 03:42:01,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:01,128 INFO L480 AbstractCegarLoop]: Abstraction has 972 states and 2459 transitions. [2021-04-15 03:42:01,128 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) [2021-04-15 03:42:01,128 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 2459 transitions. [2021-04-15 03:42:01,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-04-15 03:42:01,129 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:01,130 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:01,344 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2021-04-15 03:42:01,345 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:01,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:01,345 INFO L82 PathProgramCache]: Analyzing trace with hash -318369164, now seen corresponding path program 28 times [2021-04-15 03:42:01,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:01,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112953691] [2021-04-15 03:42:01,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:01,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:01,372 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:42:01,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112953691] [2021-04-15 03:42:01,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593397086] [2021-04-15 03:42:01,372 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 [2021-04-15 03:42:01,402 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 03:42:01,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:01,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 21 conjunts are in the unsatisfiable core [2021-04-15 03:42:01,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:01,477 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-04-15 03:42:01,477 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 [2021-04-15 03:42:01,479 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:01,487 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:42:01,488 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:42:01,488 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:53, output treesize:32 [2021-04-15 03:42:01,583 INFO L446 ElimStorePlain]: Different costs {1=[f], 3=[v_prenex_10]} [2021-04-15 03:42:01,587 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-04-15 03:42:01,588 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 [2021-04-15 03:42:01,589 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:01,593 INFO L628 ElimStorePlain]: treesize reduction 30, result has 9.1 percent of original size [2021-04-15 03:42:01,594 INFO L518 ElimStorePlain]: Eliminatee v_prenex_10 vanished before elimination [2021-04-15 03:42:01,594 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:42:01,594 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:45, output treesize:3 [2021-04-15 03:42:01,604 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:42:01,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:01,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2021-04-15 03:42:01,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725127072] [2021-04-15 03:42:01,605 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-04-15 03:42:01,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:01,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-04-15 03:42:01,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-04-15 03:42:01,606 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) [2021-04-15 03:42:01,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:01,668 INFO L93 Difference]: Finished difference Result 1360 states and 3305 transitions. [2021-04-15 03:42:01,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-15 03:42:01,668 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 [2021-04-15 03:42:01,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:01,673 INFO L225 Difference]: With dead ends: 1360 [2021-04-15 03:42:01,673 INFO L226 Difference]: Without dead ends: 1335 [2021-04-15 03:42:01,674 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 98.3ms TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-04-15 03:42:01,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2021-04-15 03:42:01,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1089. [2021-04-15 03:42:01,693 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) [2021-04-15 03:42:01,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 2783 transitions. [2021-04-15 03:42:01,697 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 2783 transitions. Word has length 26 [2021-04-15 03:42:01,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:01,697 INFO L480 AbstractCegarLoop]: Abstraction has 1089 states and 2783 transitions. [2021-04-15 03:42:01,698 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) [2021-04-15 03:42:01,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 2783 transitions. [2021-04-15 03:42:01,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-04-15 03:42:01,700 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:01,700 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:01,920 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:01,921 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:01,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:01,921 INFO L82 PathProgramCache]: Analyzing trace with hash 412497268, now seen corresponding path program 29 times [2021-04-15 03:42:01,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:01,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369697140] [2021-04-15 03:42:01,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:01,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:01,949 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:42:01,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369697140] [2021-04-15 03:42:01,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738032468] [2021-04-15 03:42:01,950 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 [2021-04-15 03:42:01,978 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-04-15 03:42:01,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:01,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 25 conjunts are in the unsatisfiable core [2021-04-15 03:42:01,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:02,082 INFO L354 Elim1Store]: treesize reduction 32, result has 34.7 percent of original size [2021-04-15 03:42:02,082 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 [2021-04-15 03:42:02,102 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-04-15 03:42:02,111 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:42:02,118 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-04-15 03:42:02,118 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:70, output treesize:49 [2021-04-15 03:42:02,229 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-04-15 03:42:02,230 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 [2021-04-15 03:42:02,232 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:02,241 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-04-15 03:42:02,241 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 [2021-04-15 03:42:02,243 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:02,253 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-04-15 03:42:02,254 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 [2021-04-15 03:42:02,255 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:02,259 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-04-15 03:42:02,259 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 [2021-04-15 03:42:02,261 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:02,265 INFO L628 ElimStorePlain]: treesize reduction 9, result has 25.0 percent of original size [2021-04-15 03:42:02,266 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:42:02,266 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:137, output treesize:3 [2021-04-15 03:42:02,275 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:42:02,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:02,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2021-04-15 03:42:02,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177313256] [2021-04-15 03:42:02,276 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-04-15 03:42:02,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:02,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-04-15 03:42:02,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-04-15 03:42:02,277 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) [2021-04-15 03:42:02,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:02,377 INFO L93 Difference]: Finished difference Result 1426 states and 3542 transitions. [2021-04-15 03:42:02,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-15 03:42:02,377 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 [2021-04-15 03:42:02,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:02,382 INFO L225 Difference]: With dead ends: 1426 [2021-04-15 03:42:02,382 INFO L226 Difference]: Without dead ends: 1419 [2021-04-15 03:42:02,383 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 104.7ms TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-04-15 03:42:02,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1419 states. [2021-04-15 03:42:02,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1419 to 1225. [2021-04-15 03:42:02,404 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) [2021-04-15 03:42:02,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 3156 transitions. [2021-04-15 03:42:02,407 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 3156 transitions. Word has length 26 [2021-04-15 03:42:02,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:02,408 INFO L480 AbstractCegarLoop]: Abstraction has 1225 states and 3156 transitions. [2021-04-15 03:42:02,408 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) [2021-04-15 03:42:02,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 3156 transitions. [2021-04-15 03:42:02,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-04-15 03:42:02,410 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:02,410 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:02,620 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2021-04-15 03:42:02,621 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:02,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:02,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1387752458, now seen corresponding path program 30 times [2021-04-15 03:42:02,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:02,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791162516] [2021-04-15 03:42:02,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:02,709 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:02,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791162516] [2021-04-15 03:42:02,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931702170] [2021-04-15 03:42:02,710 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 [2021-04-15 03:42:02,731 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-04-15 03:42:02,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:02,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-15 03:42:02,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:02,880 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:02,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:02,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 21 [2021-04-15 03:42:02,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101276492] [2021-04-15 03:42:02,881 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-04-15 03:42:02,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:02,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-04-15 03:42:02,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2021-04-15 03:42:02,881 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) [2021-04-15 03:42:03,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:03,699 INFO L93 Difference]: Finished difference Result 1761 states and 4199 transitions. [2021-04-15 03:42:03,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-04-15 03:42:03,699 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 [2021-04-15 03:42:03,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:03,705 INFO L225 Difference]: With dead ends: 1761 [2021-04-15 03:42:03,705 INFO L226 Difference]: Without dead ends: 1761 [2021-04-15 03:42:03,706 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 659 ImplicationChecksByTransitivity, 691.6ms TimeCoverageRelationStatistics Valid=757, Invalid=2105, Unknown=0, NotChecked=0, Total=2862 [2021-04-15 03:42:03,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1761 states. [2021-04-15 03:42:03,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1761 to 1090. [2021-04-15 03:42:03,725 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) [2021-04-15 03:42:03,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 2791 transitions. [2021-04-15 03:42:03,727 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 2791 transitions. Word has length 28 [2021-04-15 03:42:03,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:03,728 INFO L480 AbstractCegarLoop]: Abstraction has 1090 states and 2791 transitions. [2021-04-15 03:42:03,728 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) [2021-04-15 03:42:03,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 2791 transitions. [2021-04-15 03:42:03,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-04-15 03:42:03,730 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:03,730 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:03,944 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:03,945 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:03,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:03,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1570155570, now seen corresponding path program 31 times [2021-04-15 03:42:03,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:03,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116908123] [2021-04-15 03:42:03,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:03,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:04,028 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:04,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116908123] [2021-04-15 03:42:04,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961815694] [2021-04-15 03:42:04,028 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) [2021-04-15 03:42:04,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:04,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-15 03:42:04,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:04,231 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:04,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:04,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-04-15 03:42:04,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654299618] [2021-04-15 03:42:04,232 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-04-15 03:42:04,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:04,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-04-15 03:42:04,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2021-04-15 03:42:04,233 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) [2021-04-15 03:42:05,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:05,254 INFO L93 Difference]: Finished difference Result 2078 states and 4785 transitions. [2021-04-15 03:42:05,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-04-15 03:42:05,255 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 [2021-04-15 03:42:05,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:05,262 INFO L225 Difference]: With dead ends: 2078 [2021-04-15 03:42:05,262 INFO L226 Difference]: Without dead ends: 2007 [2021-04-15 03:42:05,263 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1149 ImplicationChecksByTransitivity, 963.8ms TimeCoverageRelationStatistics Valid=946, Invalid=3086, Unknown=0, NotChecked=0, Total=4032 [2021-04-15 03:42:05,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2007 states. [2021-04-15 03:42:05,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2007 to 1154. [2021-04-15 03:42:05,291 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) [2021-04-15 03:42:05,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 2938 transitions. [2021-04-15 03:42:05,294 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 2938 transitions. Word has length 28 [2021-04-15 03:42:05,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:05,294 INFO L480 AbstractCegarLoop]: Abstraction has 1154 states and 2938 transitions. [2021-04-15 03:42:05,294 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) [2021-04-15 03:42:05,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 2938 transitions. [2021-04-15 03:42:05,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-04-15 03:42:05,296 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:05,296 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:05,518 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable98 [2021-04-15 03:42:05,518 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:05,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:05,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1031109750, now seen corresponding path program 32 times [2021-04-15 03:42:05,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:05,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724256853] [2021-04-15 03:42:05,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:05,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:05,577 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:05,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724256853] [2021-04-15 03:42:05,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229043343] [2021-04-15 03:42:05,577 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 [2021-04-15 03:42:05,600 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 03:42:05,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:05,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-15 03:42:05,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:05,782 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:05,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:05,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 17 [2021-04-15 03:42:05,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101718599] [2021-04-15 03:42:05,784 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-04-15 03:42:05,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:05,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-04-15 03:42:05,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2021-04-15 03:42:05,785 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) [2021-04-15 03:42:06,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:06,661 INFO L93 Difference]: Finished difference Result 2302 states and 5553 transitions. [2021-04-15 03:42:06,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-04-15 03:42:06,662 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 [2021-04-15 03:42:06,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:06,671 INFO L225 Difference]: With dead ends: 2302 [2021-04-15 03:42:06,671 INFO L226 Difference]: Without dead ends: 2294 [2021-04-15 03:42:06,672 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 858 ImplicationChecksByTransitivity, 784.6ms TimeCoverageRelationStatistics Valid=836, Invalid=2134, Unknown=0, NotChecked=0, Total=2970 [2021-04-15 03:42:06,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2294 states. [2021-04-15 03:42:06,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2294 to 1436. [2021-04-15 03:42:06,698 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) [2021-04-15 03:42:06,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 3658 transitions. [2021-04-15 03:42:06,701 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 3658 transitions. Word has length 28 [2021-04-15 03:42:06,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:06,701 INFO L480 AbstractCegarLoop]: Abstraction has 1436 states and 3658 transitions. [2021-04-15 03:42:06,702 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) [2021-04-15 03:42:06,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 3658 transitions. [2021-04-15 03:42:06,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-04-15 03:42:06,703 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:06,704 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:06,925 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable99 [2021-04-15 03:42:06,925 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:06,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:06,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1879959464, now seen corresponding path program 33 times [2021-04-15 03:42:06,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:06,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154009824] [2021-04-15 03:42:06,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:06,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:06,985 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:06,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154009824] [2021-04-15 03:42:06,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039951999] [2021-04-15 03:42:06,986 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 [2021-04-15 03:42:07,011 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-04-15 03:42:07,011 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:07,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-15 03:42:07,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:07,193 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:07,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:07,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 17 [2021-04-15 03:42:07,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202298549] [2021-04-15 03:42:07,194 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-04-15 03:42:07,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:07,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-04-15 03:42:07,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2021-04-15 03:42:07,194 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) [2021-04-15 03:42:07,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:07,867 INFO L93 Difference]: Finished difference Result 1661 states and 4081 transitions. [2021-04-15 03:42:07,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-04-15 03:42:07,867 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 [2021-04-15 03:42:07,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:07,870 INFO L225 Difference]: With dead ends: 1661 [2021-04-15 03:42:07,870 INFO L226 Difference]: Without dead ends: 1657 [2021-04-15 03:42:07,870 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 661 ImplicationChecksByTransitivity, 661.7ms TimeCoverageRelationStatistics Valid=647, Invalid=1903, Unknown=0, NotChecked=0, Total=2550 [2021-04-15 03:42:07,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2021-04-15 03:42:07,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1436. [2021-04-15 03:42:07,890 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) [2021-04-15 03:42:07,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 3656 transitions. [2021-04-15 03:42:07,893 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 3656 transitions. Word has length 28 [2021-04-15 03:42:07,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:07,893 INFO L480 AbstractCegarLoop]: Abstraction has 1436 states and 3656 transitions. [2021-04-15 03:42:07,893 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) [2021-04-15 03:42:07,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 3656 transitions. [2021-04-15 03:42:07,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-04-15 03:42:07,896 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:07,896 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:08,108 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2021-04-15 03:42:08,109 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:08,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:08,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1630957874, now seen corresponding path program 34 times [2021-04-15 03:42:08,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:08,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875828042] [2021-04-15 03:42:08,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:08,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:08,157 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:42:08,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875828042] [2021-04-15 03:42:08,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324290101] [2021-04-15 03:42:08,158 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 [2021-04-15 03:42:08,176 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 03:42:08,176 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:08,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-15 03:42:08,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:08,328 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:08,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:08,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 17 [2021-04-15 03:42:08,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992578119] [2021-04-15 03:42:08,329 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-04-15 03:42:08,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:08,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-04-15 03:42:08,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2021-04-15 03:42:08,329 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) [2021-04-15 03:42:08,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:08,859 INFO L93 Difference]: Finished difference Result 2041 states and 4979 transitions. [2021-04-15 03:42:08,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-04-15 03:42:08,859 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 [2021-04-15 03:42:08,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:08,863 INFO L225 Difference]: With dead ends: 2041 [2021-04-15 03:42:08,863 INFO L226 Difference]: Without dead ends: 2026 [2021-04-15 03:42:08,864 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 458.2ms TimeCoverageRelationStatistics Valid=421, Invalid=1301, Unknown=0, NotChecked=0, Total=1722 [2021-04-15 03:42:08,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2026 states. [2021-04-15 03:42:08,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2026 to 1482. [2021-04-15 03:42:08,887 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) [2021-04-15 03:42:08,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 3781 transitions. [2021-04-15 03:42:08,890 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 3781 transitions. Word has length 28 [2021-04-15 03:42:08,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:08,891 INFO L480 AbstractCegarLoop]: Abstraction has 1482 states and 3781 transitions. [2021-04-15 03:42:08,891 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) [2021-04-15 03:42:08,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 3781 transitions. [2021-04-15 03:42:08,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-04-15 03:42:08,893 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:08,893 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:09,109 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2021-04-15 03:42:09,109 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:09,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:09,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1524214334, now seen corresponding path program 35 times [2021-04-15 03:42:09,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:09,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076435249] [2021-04-15 03:42:09,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:09,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:09,166 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:09,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076435249] [2021-04-15 03:42:09,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744921208] [2021-04-15 03:42:09,166 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 [2021-04-15 03:42:09,193 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-04-15 03:42:09,193 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:09,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-15 03:42:09,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:09,352 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:09,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:09,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 18 [2021-04-15 03:42:09,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129584921] [2021-04-15 03:42:09,352 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 03:42:09,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:09,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 03:42:09,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2021-04-15 03:42:09,353 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) [2021-04-15 03:42:10,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:10,084 INFO L93 Difference]: Finished difference Result 1955 states and 4722 transitions. [2021-04-15 03:42:10,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-04-15 03:42:10,085 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 [2021-04-15 03:42:10,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:10,088 INFO L225 Difference]: With dead ends: 1955 [2021-04-15 03:42:10,088 INFO L226 Difference]: Without dead ends: 1941 [2021-04-15 03:42:10,088 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 764 ImplicationChecksByTransitivity, 643.1ms TimeCoverageRelationStatistics Valid=680, Invalid=2076, Unknown=0, NotChecked=0, Total=2756 [2021-04-15 03:42:10,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1941 states. [2021-04-15 03:42:10,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1941 to 1492. [2021-04-15 03:42:10,106 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) [2021-04-15 03:42:10,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 3804 transitions. [2021-04-15 03:42:10,110 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 3804 transitions. Word has length 28 [2021-04-15 03:42:10,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:10,110 INFO L480 AbstractCegarLoop]: Abstraction has 1492 states and 3804 transitions. [2021-04-15 03:42:10,110 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) [2021-04-15 03:42:10,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 3804 transitions. [2021-04-15 03:42:10,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-04-15 03:42:10,113 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:10,113 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:10,335 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2021-04-15 03:42:10,336 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:10,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:10,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1020569282, now seen corresponding path program 36 times [2021-04-15 03:42:10,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:10,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026075358] [2021-04-15 03:42:10,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:10,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:10,401 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:10,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026075358] [2021-04-15 03:42:10,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17327757] [2021-04-15 03:42:10,402 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 [2021-04-15 03:42:10,421 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-04-15 03:42:10,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:10,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-15 03:42:10,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:10,569 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:10,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:10,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2021-04-15 03:42:10,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209380861] [2021-04-15 03:42:10,569 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-04-15 03:42:10,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:10,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-04-15 03:42:10,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2021-04-15 03:42:10,570 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) [2021-04-15 03:42:11,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:11,301 INFO L93 Difference]: Finished difference Result 2120 states and 5066 transitions. [2021-04-15 03:42:11,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-04-15 03:42:11,301 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 [2021-04-15 03:42:11,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:11,312 INFO L225 Difference]: With dead ends: 2120 [2021-04-15 03:42:11,312 INFO L226 Difference]: Without dead ends: 2094 [2021-04-15 03:42:11,318 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 878 ImplicationChecksByTransitivity, 675.3ms TimeCoverageRelationStatistics Valid=724, Invalid=2246, Unknown=0, NotChecked=0, Total=2970 [2021-04-15 03:42:11,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2094 states. [2021-04-15 03:42:11,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2094 to 1363. [2021-04-15 03:42:11,342 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) [2021-04-15 03:42:11,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 3446 transitions. [2021-04-15 03:42:11,344 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 3446 transitions. Word has length 28 [2021-04-15 03:42:11,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:11,345 INFO L480 AbstractCegarLoop]: Abstraction has 1363 states and 3446 transitions. [2021-04-15 03:42:11,345 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) [2021-04-15 03:42:11,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 3446 transitions. [2021-04-15 03:42:11,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-04-15 03:42:11,347 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:11,347 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:11,568 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2021-04-15 03:42:11,568 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:11,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:11,568 INFO L82 PathProgramCache]: Analyzing trace with hash 873893366, now seen corresponding path program 37 times [2021-04-15 03:42:11,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:11,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491140805] [2021-04-15 03:42:11,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:11,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:11,640 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:42:11,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491140805] [2021-04-15 03:42:11,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014866161] [2021-04-15 03:42:11,640 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 [2021-04-15 03:42:11,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:11,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-15 03:42:11,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:11,805 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:11,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:11,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-04-15 03:42:11,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3650041] [2021-04-15 03:42:11,805 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-04-15 03:42:11,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:11,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-04-15 03:42:11,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2021-04-15 03:42:11,806 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) [2021-04-15 03:42:12,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:12,541 INFO L93 Difference]: Finished difference Result 2078 states and 4835 transitions. [2021-04-15 03:42:12,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-04-15 03:42:12,541 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 [2021-04-15 03:42:12,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:12,544 INFO L225 Difference]: With dead ends: 2078 [2021-04-15 03:42:12,544 INFO L226 Difference]: Without dead ends: 2078 [2021-04-15 03:42:12,545 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 652.9ms TimeCoverageRelationStatistics Valid=756, Invalid=2106, Unknown=0, NotChecked=0, Total=2862 [2021-04-15 03:42:12,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2078 states. [2021-04-15 03:42:12,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2078 to 1171. [2021-04-15 03:42:12,565 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) [2021-04-15 03:42:12,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 2926 transitions. [2021-04-15 03:42:12,567 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 2926 transitions. Word has length 28 [2021-04-15 03:42:12,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:12,568 INFO L480 AbstractCegarLoop]: Abstraction has 1171 states and 2926 transitions. [2021-04-15 03:42:12,568 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) [2021-04-15 03:42:12,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 2926 transitions. [2021-04-15 03:42:12,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-04-15 03:42:12,569 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:12,569 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:12,791 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable104 [2021-04-15 03:42:12,791 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:12,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:12,791 INFO L82 PathProgramCache]: Analyzing trace with hash 876971314, now seen corresponding path program 38 times [2021-04-15 03:42:12,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:12,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034499952] [2021-04-15 03:42:12,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:12,854 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:42:12,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034499952] [2021-04-15 03:42:12,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183280710] [2021-04-15 03:42:12,854 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 [2021-04-15 03:42:12,873 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 03:42:12,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:12,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-15 03:42:12,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:13,019 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:13,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:13,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2021-04-15 03:42:13,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068443007] [2021-04-15 03:42:13,019 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-04-15 03:42:13,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:13,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-04-15 03:42:13,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-04-15 03:42:13,020 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) [2021-04-15 03:42:13,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:13,770 INFO L93 Difference]: Finished difference Result 1575 states and 3659 transitions. [2021-04-15 03:42:13,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-04-15 03:42:13,771 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 [2021-04-15 03:42:13,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:13,774 INFO L225 Difference]: With dead ends: 1575 [2021-04-15 03:42:13,774 INFO L226 Difference]: Without dead ends: 1536 [2021-04-15 03:42:13,775 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 797 ImplicationChecksByTransitivity, 644.1ms TimeCoverageRelationStatistics Valid=599, Invalid=2053, Unknown=0, NotChecked=0, Total=2652 [2021-04-15 03:42:13,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2021-04-15 03:42:13,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1078. [2021-04-15 03:42:13,792 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) [2021-04-15 03:42:13,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 2666 transitions. [2021-04-15 03:42:13,795 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 2666 transitions. Word has length 28 [2021-04-15 03:42:13,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:13,796 INFO L480 AbstractCegarLoop]: Abstraction has 1078 states and 2666 transitions. [2021-04-15 03:42:13,797 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) [2021-04-15 03:42:13,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 2666 transitions. [2021-04-15 03:42:13,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-04-15 03:42:13,798 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:13,798 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:14,020 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105,39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:14,020 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:14,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:14,021 INFO L82 PathProgramCache]: Analyzing trace with hash 706414582, now seen corresponding path program 39 times [2021-04-15 03:42:14,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:14,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606168043] [2021-04-15 03:42:14,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:14,082 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:42:14,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606168043] [2021-04-15 03:42:14,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997867397] [2021-04-15 03:42:14,083 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 [2021-04-15 03:42:14,104 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-04-15 03:42:14,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:14,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-15 03:42:14,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:14,259 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:14,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:14,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2021-04-15 03:42:14,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311145976] [2021-04-15 03:42:14,260 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-04-15 03:42:14,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:14,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-04-15 03:42:14,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-04-15 03:42:14,260 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) [2021-04-15 03:42:15,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:15,055 INFO L93 Difference]: Finished difference Result 1983 states and 4574 transitions. [2021-04-15 03:42:15,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-04-15 03:42:15,057 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 [2021-04-15 03:42:15,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:15,060 INFO L225 Difference]: With dead ends: 1983 [2021-04-15 03:42:15,060 INFO L226 Difference]: Without dead ends: 1983 [2021-04-15 03:42:15,061 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 953 ImplicationChecksByTransitivity, 690.6ms TimeCoverageRelationStatistics Valid=892, Invalid=2300, Unknown=0, NotChecked=0, Total=3192 [2021-04-15 03:42:15,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2021-04-15 03:42:15,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1181. [2021-04-15 03:42:15,081 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) [2021-04-15 03:42:15,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 2880 transitions. [2021-04-15 03:42:15,083 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 2880 transitions. Word has length 28 [2021-04-15 03:42:15,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:15,083 INFO L480 AbstractCegarLoop]: Abstraction has 1181 states and 2880 transitions. [2021-04-15 03:42:15,083 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) [2021-04-15 03:42:15,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 2880 transitions. [2021-04-15 03:42:15,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-04-15 03:42:15,085 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:15,085 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:15,300 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable106 [2021-04-15 03:42:15,301 INFO L428 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:15,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:15,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1792450098, now seen corresponding path program 40 times [2021-04-15 03:42:15,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:15,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624931954] [2021-04-15 03:42:15,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:15,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:15,366 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:42:15,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624931954] [2021-04-15 03:42:15,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629180642] [2021-04-15 03:42:15,366 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 [2021-04-15 03:42:15,392 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 03:42:15,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:15,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-15 03:42:15,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:15,571 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:15,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:15,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 18 [2021-04-15 03:42:15,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409765826] [2021-04-15 03:42:15,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 03:42:15,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:15,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 03:42:15,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2021-04-15 03:42:15,572 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) [2021-04-15 03:42:16,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:16,255 INFO L93 Difference]: Finished difference Result 1515 states and 3517 transitions. [2021-04-15 03:42:16,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-04-15 03:42:16,255 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 [2021-04-15 03:42:16,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:16,257 INFO L225 Difference]: With dead ends: 1515 [2021-04-15 03:42:16,257 INFO L226 Difference]: Without dead ends: 1497 [2021-04-15 03:42:16,257 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 664 ImplicationChecksByTransitivity, 584.2ms TimeCoverageRelationStatistics Valid=519, Invalid=1737, Unknown=0, NotChecked=0, Total=2256 [2021-04-15 03:42:16,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2021-04-15 03:42:16,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1209. [2021-04-15 03:42:16,271 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) [2021-04-15 03:42:16,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 2956 transitions. [2021-04-15 03:42:16,273 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 2956 transitions. Word has length 28 [2021-04-15 03:42:16,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:16,273 INFO L480 AbstractCegarLoop]: Abstraction has 1209 states and 2956 transitions. [2021-04-15 03:42:16,273 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) [2021-04-15 03:42:16,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 2956 transitions. [2021-04-15 03:42:16,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-04-15 03:42:16,275 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:16,275 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:16,493 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:16,493 INFO L428 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:16,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:16,494 INFO L82 PathProgramCache]: Analyzing trace with hash -352976394, now seen corresponding path program 41 times [2021-04-15 03:42:16,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:16,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015480440] [2021-04-15 03:42:16,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:16,553 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:42:16,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015480440] [2021-04-15 03:42:16,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678916807] [2021-04-15 03:42:16,554 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) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:16,577 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-04-15 03:42:16,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:16,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-15 03:42:16,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:16,749 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:16,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:16,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 18 [2021-04-15 03:42:16,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810009923] [2021-04-15 03:42:16,750 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 03:42:16,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:16,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 03:42:16,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2021-04-15 03:42:16,750 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) [2021-04-15 03:42:17,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:17,598 INFO L93 Difference]: Finished difference Result 2391 states and 5676 transitions. [2021-04-15 03:42:17,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-04-15 03:42:17,599 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 [2021-04-15 03:42:17,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:17,601 INFO L225 Difference]: With dead ends: 2391 [2021-04-15 03:42:17,601 INFO L226 Difference]: Without dead ends: 2391 [2021-04-15 03:42:17,601 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1207 ImplicationChecksByTransitivity, 772.8ms TimeCoverageRelationStatistics Valid=1080, Invalid=2580, Unknown=0, NotChecked=0, Total=3660 [2021-04-15 03:42:17,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2391 states. [2021-04-15 03:42:17,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2391 to 1853. [2021-04-15 03:42:17,626 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) [2021-04-15 03:42:17,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1853 states to 1853 states and 4630 transitions. [2021-04-15 03:42:17,629 INFO L78 Accepts]: Start accepts. Automaton has 1853 states and 4630 transitions. Word has length 28 [2021-04-15 03:42:17,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:17,629 INFO L480 AbstractCegarLoop]: Abstraction has 1853 states and 4630 transitions. [2021-04-15 03:42:17,630 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) [2021-04-15 03:42:17,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1853 states and 4630 transitions. [2021-04-15 03:42:17,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-04-15 03:42:17,632 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:17,632 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:17,844 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,42 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:17,845 INFO L428 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:17,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:17,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1995970268, now seen corresponding path program 42 times [2021-04-15 03:42:17,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:17,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729733316] [2021-04-15 03:42:17,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:17,896 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:42:17,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729733316] [2021-04-15 03:42:17,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417983959] [2021-04-15 03:42:17,896 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 [2021-04-15 03:42:17,917 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-04-15 03:42:17,917 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:17,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-15 03:42:17,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:18,056 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:18,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:18,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 17 [2021-04-15 03:42:18,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807442031] [2021-04-15 03:42:18,057 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-04-15 03:42:18,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:18,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-04-15 03:42:18,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2021-04-15 03:42:18,057 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) [2021-04-15 03:42:18,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:18,633 INFO L93 Difference]: Finished difference Result 2323 states and 5527 transitions. [2021-04-15 03:42:18,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-04-15 03:42:18,633 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 [2021-04-15 03:42:18,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:18,635 INFO L225 Difference]: With dead ends: 2323 [2021-04-15 03:42:18,635 INFO L226 Difference]: Without dead ends: 2319 [2021-04-15 03:42:18,635 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 633 ImplicationChecksByTransitivity, 522.0ms TimeCoverageRelationStatistics Valid=634, Invalid=1622, Unknown=0, NotChecked=0, Total=2256 [2021-04-15 03:42:18,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2319 states. [2021-04-15 03:42:18,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2319 to 1827. [2021-04-15 03:42:18,662 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) [2021-04-15 03:42:18,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1827 states to 1827 states and 4558 transitions. [2021-04-15 03:42:18,665 INFO L78 Accepts]: Start accepts. Automaton has 1827 states and 4558 transitions. Word has length 28 [2021-04-15 03:42:18,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:18,666 INFO L480 AbstractCegarLoop]: Abstraction has 1827 states and 4558 transitions. [2021-04-15 03:42:18,666 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) [2021-04-15 03:42:18,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1827 states and 4558 transitions. [2021-04-15 03:42:18,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-04-15 03:42:18,668 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:18,668 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:18,889 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:18,889 INFO L428 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:18,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:18,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1489624002, now seen corresponding path program 43 times [2021-04-15 03:42:18,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:18,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074501014] [2021-04-15 03:42:18,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:18,949 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:42:18,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074501014] [2021-04-15 03:42:18,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101811732] [2021-04-15 03:42:18,950 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) [2021-04-15 03:42:18,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:18,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-15 03:42:18,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:19,139 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:19,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:19,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 18 [2021-04-15 03:42:19,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202257808] [2021-04-15 03:42:19,139 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 03:42:19,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:19,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 03:42:19,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2021-04-15 03:42:19,140 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) [2021-04-15 03:42:19,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:19,745 INFO L93 Difference]: Finished difference Result 2472 states and 5895 transitions. [2021-04-15 03:42:19,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-04-15 03:42:19,746 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 [2021-04-15 03:42:19,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:19,748 INFO L225 Difference]: With dead ends: 2472 [2021-04-15 03:42:19,748 INFO L226 Difference]: Without dead ends: 2460 [2021-04-15 03:42:19,748 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 664 ImplicationChecksByTransitivity, 555.7ms TimeCoverageRelationStatistics Valid=613, Invalid=1739, Unknown=0, NotChecked=0, Total=2352 [2021-04-15 03:42:19,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2460 states. [2021-04-15 03:42:19,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2460 to 1976. [2021-04-15 03:42:19,769 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) [2021-04-15 03:42:19,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 4950 transitions. [2021-04-15 03:42:19,771 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 4950 transitions. Word has length 28 [2021-04-15 03:42:19,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:19,771 INFO L480 AbstractCegarLoop]: Abstraction has 1976 states and 4950 transitions. [2021-04-15 03:42:19,771 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) [2021-04-15 03:42:19,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 4950 transitions. [2021-04-15 03:42:19,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-04-15 03:42:19,773 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:19,773 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:19,973 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:19,974 INFO L428 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:19,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:19,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1262402622, now seen corresponding path program 44 times [2021-04-15 03:42:19,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:19,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327066651] [2021-04-15 03:42:19,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:20,038 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:42:20,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327066651] [2021-04-15 03:42:20,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828985118] [2021-04-15 03:42:20,038 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 [2021-04-15 03:42:20,078 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 03:42:20,078 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:20,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-15 03:42:20,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:20,228 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:20,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:20,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2021-04-15 03:42:20,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937905409] [2021-04-15 03:42:20,229 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-04-15 03:42:20,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:20,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-04-15 03:42:20,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2021-04-15 03:42:20,229 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) [2021-04-15 03:42:20,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:20,881 INFO L93 Difference]: Finished difference Result 2770 states and 6589 transitions. [2021-04-15 03:42:20,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-04-15 03:42:20,882 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 [2021-04-15 03:42:20,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:20,884 INFO L225 Difference]: With dead ends: 2770 [2021-04-15 03:42:20,884 INFO L226 Difference]: Without dead ends: 2750 [2021-04-15 03:42:20,884 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 761 ImplicationChecksByTransitivity, 605.1ms TimeCoverageRelationStatistics Valid=662, Invalid=1990, Unknown=0, NotChecked=0, Total=2652 [2021-04-15 03:42:20,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2750 states. [2021-04-15 03:42:20,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2750 to 2206. [2021-04-15 03:42:20,908 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) [2021-04-15 03:42:20,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 5535 transitions. [2021-04-15 03:42:20,911 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 5535 transitions. Word has length 28 [2021-04-15 03:42:20,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:20,911 INFO L480 AbstractCegarLoop]: Abstraction has 2206 states and 5535 transitions. [2021-04-15 03:42:20,911 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) [2021-04-15 03:42:20,911 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 5535 transitions. [2021-04-15 03:42:20,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-04-15 03:42:20,913 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:20,913 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:21,113 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2021-04-15 03:42:21,114 INFO L428 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:21,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:21,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1945988538, now seen corresponding path program 45 times [2021-04-15 03:42:21,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:21,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573441072] [2021-04-15 03:42:21,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:21,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:21,187 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:21,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573441072] [2021-04-15 03:42:21,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367735631] [2021-04-15 03:42:21,188 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 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:21,212 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-04-15 03:42:21,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:21,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-15 03:42:21,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:21,371 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:21,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:21,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-04-15 03:42:21,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787723550] [2021-04-15 03:42:21,372 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-04-15 03:42:21,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:21,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-04-15 03:42:21,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2021-04-15 03:42:21,372 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) [2021-04-15 03:42:22,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:22,097 INFO L93 Difference]: Finished difference Result 2769 states and 6659 transitions. [2021-04-15 03:42:22,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-04-15 03:42:22,097 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 [2021-04-15 03:42:22,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:22,100 INFO L225 Difference]: With dead ends: 2769 [2021-04-15 03:42:22,100 INFO L226 Difference]: Without dead ends: 2741 [2021-04-15 03:42:22,100 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 953 ImplicationChecksByTransitivity, 682.6ms TimeCoverageRelationStatistics Valid=778, Invalid=2414, Unknown=0, NotChecked=0, Total=3192 [2021-04-15 03:42:22,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2021-04-15 03:42:22,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 2259. [2021-04-15 03:42:22,126 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) [2021-04-15 03:42:22,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2259 states to 2259 states and 5697 transitions. [2021-04-15 03:42:22,129 INFO L78 Accepts]: Start accepts. Automaton has 2259 states and 5697 transitions. Word has length 28 [2021-04-15 03:42:22,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:22,130 INFO L480 AbstractCegarLoop]: Abstraction has 2259 states and 5697 transitions. [2021-04-15 03:42:22,130 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) [2021-04-15 03:42:22,130 INFO L276 IsEmpty]: Start isEmpty. Operand 2259 states and 5697 transitions. [2021-04-15 03:42:22,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-04-15 03:42:22,132 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:22,132 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:22,332 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2021-04-15 03:42:22,332 INFO L428 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:22,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:22,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1181662516, now seen corresponding path program 46 times [2021-04-15 03:42:22,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:22,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162323807] [2021-04-15 03:42:22,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:22,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:22,370 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:22,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162323807] [2021-04-15 03:42:22,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324580739] [2021-04-15 03:42:22,371 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) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:22,408 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 03:42:22,408 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:22,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 27 conjunts are in the unsatisfiable core [2021-04-15 03:42:22,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:22,497 INFO L354 Elim1Store]: treesize reduction 16, result has 67.3 percent of original size [2021-04-15 03:42:22,497 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 [2021-04-15 03:42:22,499 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:22,516 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:42:22,517 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:42:22,517 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:92 [2021-04-15 03:42:22,984 INFO L354 Elim1Store]: treesize reduction 41, result has 16.3 percent of original size [2021-04-15 03:42:22,985 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 [2021-04-15 03:42:22,986 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:23,042 INFO L628 ElimStorePlain]: treesize reduction 51, result has 73.4 percent of original size [2021-04-15 03:42:23,057 INFO L354 Elim1Store]: treesize reduction 42, result has 14.3 percent of original size [2021-04-15 03:42:23,057 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 [2021-04-15 03:42:23,059 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:23,078 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:42:23,104 INFO L354 Elim1Store]: treesize reduction 24, result has 51.0 percent of original size [2021-04-15 03:42:23,105 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 [2021-04-15 03:42:23,106 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:23,113 INFO L628 ElimStorePlain]: treesize reduction 56, result has 5.1 percent of original size [2021-04-15 03:42:23,113 INFO L518 ElimStorePlain]: Eliminatee v_prenex_17 vanished before elimination [2021-04-15 03:42:23,113 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:42:23,113 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 8 variables, input treesize:242, output treesize:3 [2021-04-15 03:42:23,119 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:23,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:23,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 14 [2021-04-15 03:42:23,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155523728] [2021-04-15 03:42:23,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-15 03:42:23,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:23,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-15 03:42:23,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-04-15 03:42:23,120 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) [2021-04-15 03:42:23,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:23,219 INFO L93 Difference]: Finished difference Result 2998 states and 7342 transitions. [2021-04-15 03:42:23,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-04-15 03:42:23,219 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 [2021-04-15 03:42:23,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:23,224 INFO L225 Difference]: With dead ends: 2998 [2021-04-15 03:42:23,224 INFO L226 Difference]: Without dead ends: 2991 [2021-04-15 03:42:23,225 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 255.9ms TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-04-15 03:42:23,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states. [2021-04-15 03:42:23,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 2615. [2021-04-15 03:42:23,265 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) [2021-04-15 03:42:23,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2615 states to 2615 states and 6628 transitions. [2021-04-15 03:42:23,269 INFO L78 Accepts]: Start accepts. Automaton has 2615 states and 6628 transitions. Word has length 30 [2021-04-15 03:42:23,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:23,269 INFO L480 AbstractCegarLoop]: Abstraction has 2615 states and 6628 transitions. [2021-04-15 03:42:23,269 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) [2021-04-15 03:42:23,269 INFO L276 IsEmpty]: Start isEmpty. Operand 2615 states and 6628 transitions. [2021-04-15 03:42:23,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-04-15 03:42:23,272 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:23,272 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:23,472 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable113 [2021-04-15 03:42:23,472 INFO L428 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:23,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:23,473 INFO L82 PathProgramCache]: Analyzing trace with hash 61643060, now seen corresponding path program 47 times [2021-04-15 03:42:23,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:23,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623003774] [2021-04-15 03:42:23,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:23,508 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:42:23,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623003774] [2021-04-15 03:42:23,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582883886] [2021-04-15 03:42:23,509 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 [2021-04-15 03:42:23,548 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-04-15 03:42:23,548 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:23,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 31 conjunts are in the unsatisfiable core [2021-04-15 03:42:23,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:23,727 INFO L354 Elim1Store]: treesize reduction 114, result has 37.0 percent of original size [2021-04-15 03:42:23,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2021-04-15 03:42:23,730 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:23,745 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:42:23,746 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:42:23,746 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:82, output treesize:86 [2021-04-15 03:42:23,886 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-04-15 03:42:23,886 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 [2021-04-15 03:42:23,887 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:23,896 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-04-15 03:42:23,897 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 [2021-04-15 03:42:23,897 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:23,909 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-04-15 03:42:23,909 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 [2021-04-15 03:42:23,910 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:23,917 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-04-15 03:42:23,918 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 [2021-04-15 03:42:23,919 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:23,931 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-04-15 03:42:23,931 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 [2021-04-15 03:42:23,932 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:23,939 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-04-15 03:42:23,940 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 [2021-04-15 03:42:23,941 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:23,948 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-04-15 03:42:23,948 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 [2021-04-15 03:42:23,949 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:23,956 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-04-15 03:42:23,957 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 [2021-04-15 03:42:23,958 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:23,965 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-04-15 03:42:23,965 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 [2021-04-15 03:42:23,967 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:23,980 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-04-15 03:42:23,980 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 [2021-04-15 03:42:23,981 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:23,989 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-04-15 03:42:23,989 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 [2021-04-15 03:42:23,990 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:23,997 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-04-15 03:42:23,997 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 [2021-04-15 03:42:23,998 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:24,002 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-04-15 03:42:24,002 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 [2021-04-15 03:42:24,003 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:24,006 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-04-15 03:42:24,006 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 [2021-04-15 03:42:24,007 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:24,008 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:42:24,009 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:42:24,009 INFO L247 ElimStorePlain]: Needed 15 recursive calls to eliminate 2 variables, input treesize:623, output treesize:3 [2021-04-15 03:42:24,020 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:42:24,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:24,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 14 [2021-04-15 03:42:24,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584615096] [2021-04-15 03:42:24,021 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-15 03:42:24,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:24,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-15 03:42:24,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-04-15 03:42:24,021 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) [2021-04-15 03:42:24,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:24,152 INFO L93 Difference]: Finished difference Result 3125 states and 7770 transitions. [2021-04-15 03:42:24,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-15 03:42:24,153 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 [2021-04-15 03:42:24,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:24,157 INFO L225 Difference]: With dead ends: 3125 [2021-04-15 03:42:24,157 INFO L226 Difference]: Without dead ends: 3109 [2021-04-15 03:42:24,158 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 135.0ms TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-04-15 03:42:24,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2021-04-15 03:42:24,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 2831. [2021-04-15 03:42:24,189 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) [2021-04-15 03:42:24,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2831 states to 2831 states and 7230 transitions. [2021-04-15 03:42:24,195 INFO L78 Accepts]: Start accepts. Automaton has 2831 states and 7230 transitions. Word has length 30 [2021-04-15 03:42:24,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:24,195 INFO L480 AbstractCegarLoop]: Abstraction has 2831 states and 7230 transitions. [2021-04-15 03:42:24,195 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) [2021-04-15 03:42:24,195 INFO L276 IsEmpty]: Start isEmpty. Operand 2831 states and 7230 transitions. [2021-04-15 03:42:24,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-04-15 03:42:24,199 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:24,199 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:24,412 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:24,413 INFO L428 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:24,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:24,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1458216244, now seen corresponding path program 48 times [2021-04-15 03:42:24,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:24,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513336040] [2021-04-15 03:42:24,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:24,444 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:42:24,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513336040] [2021-04-15 03:42:24,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082912540] [2021-04-15 03:42:24,444 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 [2021-04-15 03:42:24,481 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-04-15 03:42:24,481 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:24,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 31 conjunts are in the unsatisfiable core [2021-04-15 03:42:24,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:24,625 INFO L446 ElimStorePlain]: Different costs {10=[f], 15=[f_inv]} [2021-04-15 03:42:24,669 INFO L354 Elim1Store]: treesize reduction 45, result has 44.4 percent of original size [2021-04-15 03:42:24,670 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 [2021-04-15 03:42:24,735 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-04-15 03:42:24,774 INFO L628 ElimStorePlain]: treesize reduction 11, result has 91.0 percent of original size [2021-04-15 03:42:24,796 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:42:24,797 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 [2021-04-15 03:42:24,821 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:24,823 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:42:24,823 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:42:24,823 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:123, output treesize:3 [2021-04-15 03:42:24,833 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:42:24,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:24,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 14 [2021-04-15 03:42:24,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767215951] [2021-04-15 03:42:24,834 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-15 03:42:24,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:24,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-15 03:42:24,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-04-15 03:42:24,836 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) [2021-04-15 03:42:24,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:24,946 INFO L93 Difference]: Finished difference Result 3299 states and 8293 transitions. [2021-04-15 03:42:24,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-04-15 03:42:24,946 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 [2021-04-15 03:42:24,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:24,949 INFO L225 Difference]: With dead ends: 3299 [2021-04-15 03:42:24,949 INFO L226 Difference]: Without dead ends: 3281 [2021-04-15 03:42:24,949 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 120.9ms TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-04-15 03:42:24,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3281 states. [2021-04-15 03:42:24,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3281 to 3017. [2021-04-15 03:42:24,979 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) [2021-04-15 03:42:24,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3017 states to 3017 states and 7754 transitions. [2021-04-15 03:42:24,984 INFO L78 Accepts]: Start accepts. Automaton has 3017 states and 7754 transitions. Word has length 30 [2021-04-15 03:42:24,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:24,984 INFO L480 AbstractCegarLoop]: Abstraction has 3017 states and 7754 transitions. [2021-04-15 03:42:24,984 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) [2021-04-15 03:42:24,984 INFO L276 IsEmpty]: Start isEmpty. Operand 3017 states and 7754 transitions. [2021-04-15 03:42:24,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-04-15 03:42:24,987 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:24,987 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:25,192 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154,49 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:25,193 INFO L428 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:25,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:25,193 INFO L82 PathProgramCache]: Analyzing trace with hash -759717580, now seen corresponding path program 49 times [2021-04-15 03:42:25,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:25,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143298335] [2021-04-15 03:42:25,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:25,227 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:42:25,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143298335] [2021-04-15 03:42:25,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878998032] [2021-04-15 03:42:25,227 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 [2021-04-15 03:42:25,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:25,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 27 conjunts are in the unsatisfiable core [2021-04-15 03:42:25,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:25,352 INFO L354 Elim1Store]: treesize reduction 16, result has 70.9 percent of original size [2021-04-15 03:42:25,352 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 [2021-04-15 03:42:25,354 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:25,374 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:42:25,375 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:42:25,375 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:78, output treesize:96 [2021-04-15 03:42:25,699 INFO L446 ElimStorePlain]: Different costs {3=[v_prenex_28], 6=[f, v_prenex_27, v_prenex_26]} [2021-04-15 03:42:25,705 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-04-15 03:42:25,706 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 59 treesize of output 25 [2021-04-15 03:42:25,707 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:25,764 INFO L628 ElimStorePlain]: treesize reduction 57, result has 69.7 percent of original size [2021-04-15 03:42:25,795 INFO L354 Elim1Store]: treesize reduction 24, result has 51.0 percent of original size [2021-04-15 03:42:25,795 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 [2021-04-15 03:42:25,797 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:25,815 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:42:25,827 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-04-15 03:42:25,827 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 [2021-04-15 03:42:25,828 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:25,843 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:42:25,856 INFO L354 Elim1Store]: treesize reduction 42, result has 14.3 percent of original size [2021-04-15 03:42:25,857 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 [2021-04-15 03:42:25,858 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:25,870 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:42:25,872 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:42:25,872 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:240, output treesize:3 [2021-04-15 03:42:25,881 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:42:25,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:25,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 14 [2021-04-15 03:42:25,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719317373] [2021-04-15 03:42:25,882 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-15 03:42:25,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:25,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-15 03:42:25,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-04-15 03:42:25,882 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) [2021-04-15 03:42:26,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:26,097 INFO L93 Difference]: Finished difference Result 3711 states and 9322 transitions. [2021-04-15 03:42:26,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 03:42:26,098 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 [2021-04-15 03:42:26,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:26,103 INFO L225 Difference]: With dead ends: 3711 [2021-04-15 03:42:26,103 INFO L226 Difference]: Without dead ends: 3682 [2021-04-15 03:42:26,103 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 231.9ms TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-04-15 03:42:26,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3682 states. [2021-04-15 03:42:26,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3682 to 3254. [2021-04-15 03:42:26,146 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) [2021-04-15 03:42:26,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3254 states to 3254 states and 8410 transitions. [2021-04-15 03:42:26,150 INFO L78 Accepts]: Start accepts. Automaton has 3254 states and 8410 transitions. Word has length 30 [2021-04-15 03:42:26,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:26,150 INFO L480 AbstractCegarLoop]: Abstraction has 3254 states and 8410 transitions. [2021-04-15 03:42:26,151 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) [2021-04-15 03:42:26,151 INFO L276 IsEmpty]: Start isEmpty. Operand 3254 states and 8410 transitions. [2021-04-15 03:42:26,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-04-15 03:42:26,153 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:26,153 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:26,354 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187,50 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:26,354 INFO L428 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:26,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:26,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1890343628, now seen corresponding path program 50 times [2021-04-15 03:42:26,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:26,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321757476] [2021-04-15 03:42:26,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:26,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:26,392 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:42:26,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321757476] [2021-04-15 03:42:26,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323181079] [2021-04-15 03:42:26,392 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 [2021-04-15 03:42:26,428 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 03:42:26,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:26,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 27 conjunts are in the unsatisfiable core [2021-04-15 03:42:26,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:26,521 INFO L354 Elim1Store]: treesize reduction 16, result has 67.3 percent of original size [2021-04-15 03:42:26,521 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 [2021-04-15 03:42:26,524 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:26,541 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:42:26,542 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:42:26,542 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:92 [2021-04-15 03:42:26,984 INFO L354 Elim1Store]: treesize reduction 46, result has 6.1 percent of original size [2021-04-15 03:42:26,985 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 [2021-04-15 03:42:26,987 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:27,043 INFO L628 ElimStorePlain]: treesize reduction 52, result has 72.9 percent of original size [2021-04-15 03:42:27,078 INFO L354 Elim1Store]: treesize reduction 24, result has 51.0 percent of original size [2021-04-15 03:42:27,078 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 [2021-04-15 03:42:27,081 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-04-15 03:42:27,090 INFO L628 ElimStorePlain]: treesize reduction 93, result has 3.1 percent of original size [2021-04-15 03:42:27,090 INFO L518 ElimStorePlain]: Eliminatee v_prenex_35 vanished before elimination [2021-04-15 03:42:27,090 INFO L518 ElimStorePlain]: Eliminatee v_prenex_37 vanished before elimination [2021-04-15 03:42:27,090 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:42:27,091 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:242, output treesize:3 [2021-04-15 03:42:27,102 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:42:27,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:27,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 14 [2021-04-15 03:42:27,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719525028] [2021-04-15 03:42:27,103 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-15 03:42:27,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:27,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-15 03:42:27,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-04-15 03:42:27,104 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) [2021-04-15 03:42:27,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:27,328 INFO L93 Difference]: Finished difference Result 3930 states and 9906 transitions. [2021-04-15 03:42:27,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-04-15 03:42:27,329 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 [2021-04-15 03:42:27,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:27,333 INFO L225 Difference]: With dead ends: 3930 [2021-04-15 03:42:27,333 INFO L226 Difference]: Without dead ends: 3923 [2021-04-15 03:42:27,333 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 282.5ms TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-04-15 03:42:27,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3923 states. [2021-04-15 03:42:27,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3923 to 3481. [2021-04-15 03:42:27,378 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) [2021-04-15 03:42:27,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3481 states to 3481 states and 9040 transitions. [2021-04-15 03:42:27,386 INFO L78 Accepts]: Start accepts. Automaton has 3481 states and 9040 transitions. Word has length 30 [2021-04-15 03:42:27,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:27,386 INFO L480 AbstractCegarLoop]: Abstraction has 3481 states and 9040 transitions. [2021-04-15 03:42:27,386 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) [2021-04-15 03:42:27,386 INFO L276 IsEmpty]: Start isEmpty. Operand 3481 states and 9040 transitions. [2021-04-15 03:42:27,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-04-15 03:42:27,390 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:27,391 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:27,607 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable201 [2021-04-15 03:42:27,607 INFO L428 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:27,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:27,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1501992374, now seen corresponding path program 51 times [2021-04-15 03:42:27,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:27,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055553126] [2021-04-15 03:42:27,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:27,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:27,709 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:27,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055553126] [2021-04-15 03:42:27,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857073389] [2021-04-15 03:42:27,709 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 [2021-04-15 03:42:27,731 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-04-15 03:42:27,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:27,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-04-15 03:42:27,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:27,939 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:27,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:27,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 25 [2021-04-15 03:42:27,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725904258] [2021-04-15 03:42:27,939 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 03:42:27,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:27,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 03:42:27,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2021-04-15 03:42:27,940 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) [2021-04-15 03:42:29,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:29,016 INFO L93 Difference]: Finished difference Result 4394 states and 10868 transitions. [2021-04-15 03:42:29,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-04-15 03:42:29,016 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 [2021-04-15 03:42:29,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:29,021 INFO L225 Difference]: With dead ends: 4394 [2021-04-15 03:42:29,021 INFO L226 Difference]: Without dead ends: 4394 [2021-04-15 03:42:29,022 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1271 ImplicationChecksByTransitivity, 943.4ms TimeCoverageRelationStatistics Valid=1299, Invalid=3671, Unknown=0, NotChecked=0, Total=4970 [2021-04-15 03:42:29,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4394 states. [2021-04-15 03:42:29,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4394 to 3164. [2021-04-15 03:42:29,060 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) [2021-04-15 03:42:29,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3164 states to 3164 states and 8180 transitions. [2021-04-15 03:42:29,064 INFO L78 Accepts]: Start accepts. Automaton has 3164 states and 8180 transitions. Word has length 32 [2021-04-15 03:42:29,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:29,064 INFO L480 AbstractCegarLoop]: Abstraction has 3164 states and 8180 transitions. [2021-04-15 03:42:29,064 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) [2021-04-15 03:42:29,065 INFO L276 IsEmpty]: Start isEmpty. Operand 3164 states and 8180 transitions. [2021-04-15 03:42:29,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-04-15 03:42:29,067 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:29,067 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:29,268 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable216 [2021-04-15 03:42:29,268 INFO L428 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:29,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:29,268 INFO L82 PathProgramCache]: Analyzing trace with hash 783257330, now seen corresponding path program 52 times [2021-04-15 03:42:29,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:29,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600651766] [2021-04-15 03:42:29,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:29,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:29,359 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:29,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600651766] [2021-04-15 03:42:29,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15433138] [2021-04-15 03:42:29,359 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 [2021-04-15 03:42:29,380 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 03:42:29,380 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:29,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-04-15 03:42:29,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:29,582 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:29,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:29,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-04-15 03:42:29,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364308046] [2021-04-15 03:42:29,583 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-04-15 03:42:29,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:29,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-04-15 03:42:29,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=492, Unknown=0, NotChecked=0, Total=600 [2021-04-15 03:42:29,583 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) [2021-04-15 03:42:31,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:31,168 INFO L93 Difference]: Finished difference Result 5243 states and 12644 transitions. [2021-04-15 03:42:31,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-04-15 03:42:31,169 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 [2021-04-15 03:42:31,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:31,175 INFO L225 Difference]: With dead ends: 5243 [2021-04-15 03:42:31,175 INFO L226 Difference]: Without dead ends: 5139 [2021-04-15 03:42:31,176 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2425 ImplicationChecksByTransitivity, 1490.6ms TimeCoverageRelationStatistics Valid=1756, Invalid=6076, Unknown=0, NotChecked=0, Total=7832 [2021-04-15 03:42:31,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5139 states. [2021-04-15 03:42:31,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5139 to 3339. [2021-04-15 03:42:31,226 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) [2021-04-15 03:42:31,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3339 states to 3339 states and 8619 transitions. [2021-04-15 03:42:31,231 INFO L78 Accepts]: Start accepts. Automaton has 3339 states and 8619 transitions. Word has length 32 [2021-04-15 03:42:31,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:31,231 INFO L480 AbstractCegarLoop]: Abstraction has 3339 states and 8619 transitions. [2021-04-15 03:42:31,231 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) [2021-04-15 03:42:31,231 INFO L276 IsEmpty]: Start isEmpty. Operand 3339 states and 8619 transitions. [2021-04-15 03:42:31,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-04-15 03:42:31,235 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:31,236 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:31,448 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable217 [2021-04-15 03:42:31,449 INFO L428 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:31,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:31,449 INFO L82 PathProgramCache]: Analyzing trace with hash 325676430, now seen corresponding path program 53 times [2021-04-15 03:42:31,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:31,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383644642] [2021-04-15 03:42:31,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:31,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:31,516 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:31,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383644642] [2021-04-15 03:42:31,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601748451] [2021-04-15 03:42:31,516 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) [2021-04-15 03:42:31,570 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-04-15 03:42:31,571 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:31,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-04-15 03:42:31,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:31,799 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:31,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:31,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13] total 20 [2021-04-15 03:42:31,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272326403] [2021-04-15 03:42:31,800 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-04-15 03:42:31,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:31,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-04-15 03:42:31,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2021-04-15 03:42:31,801 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) [2021-04-15 03:42:33,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:33,264 INFO L93 Difference]: Finished difference Result 6359 states and 15875 transitions. [2021-04-15 03:42:33,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-04-15 03:42:33,265 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 [2021-04-15 03:42:33,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:33,271 INFO L225 Difference]: With dead ends: 6359 [2021-04-15 03:42:33,271 INFO L226 Difference]: Without dead ends: 6347 [2021-04-15 03:42:33,272 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1905 ImplicationChecksByTransitivity, 1301.3ms TimeCoverageRelationStatistics Valid=1604, Invalid=4248, Unknown=0, NotChecked=0, Total=5852 [2021-04-15 03:42:33,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6347 states. [2021-04-15 03:42:33,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6347 to 4305. [2021-04-15 03:42:33,333 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) [2021-04-15 03:42:33,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4305 states to 4305 states and 11113 transitions. [2021-04-15 03:42:33,339 INFO L78 Accepts]: Start accepts. Automaton has 4305 states and 11113 transitions. Word has length 32 [2021-04-15 03:42:33,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:33,340 INFO L480 AbstractCegarLoop]: Abstraction has 4305 states and 11113 transitions. [2021-04-15 03:42:33,340 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) [2021-04-15 03:42:33,340 INFO L276 IsEmpty]: Start isEmpty. Operand 4305 states and 11113 transitions. [2021-04-15 03:42:33,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-04-15 03:42:33,344 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:33,344 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:33,544 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable218 [2021-04-15 03:42:33,545 INFO L428 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:33,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:33,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1058221652, now seen corresponding path program 54 times [2021-04-15 03:42:33,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:33,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480319979] [2021-04-15 03:42:33,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:33,608 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 21 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:33,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480319979] [2021-04-15 03:42:33,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925962428] [2021-04-15 03:42:33,608 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 [2021-04-15 03:42:33,630 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-04-15 03:42:33,630 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:33,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-04-15 03:42:33,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:33,820 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 21 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:33,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:33,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13] total 20 [2021-04-15 03:42:33,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11920492] [2021-04-15 03:42:33,820 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-04-15 03:42:33,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:33,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-04-15 03:42:33,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2021-04-15 03:42:33,821 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) [2021-04-15 03:42:34,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:34,801 INFO L93 Difference]: Finished difference Result 4664 states and 11802 transitions. [2021-04-15 03:42:34,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-04-15 03:42:34,802 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 [2021-04-15 03:42:34,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:34,806 INFO L225 Difference]: With dead ends: 4664 [2021-04-15 03:42:34,807 INFO L226 Difference]: Without dead ends: 4660 [2021-04-15 03:42:34,807 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1283 ImplicationChecksByTransitivity, 929.1ms TimeCoverageRelationStatistics Valid=1088, Invalid=3334, Unknown=0, NotChecked=0, Total=4422 [2021-04-15 03:42:34,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4660 states. [2021-04-15 03:42:34,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4660 to 4305. [2021-04-15 03:42:34,851 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) [2021-04-15 03:42:34,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4305 states to 4305 states and 11109 transitions. [2021-04-15 03:42:34,856 INFO L78 Accepts]: Start accepts. Automaton has 4305 states and 11109 transitions. Word has length 32 [2021-04-15 03:42:34,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:34,856 INFO L480 AbstractCegarLoop]: Abstraction has 4305 states and 11109 transitions. [2021-04-15 03:42:34,857 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) [2021-04-15 03:42:34,857 INFO L276 IsEmpty]: Start isEmpty. Operand 4305 states and 11109 transitions. [2021-04-15 03:42:34,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-04-15 03:42:34,860 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:34,860 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:35,061 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219,55 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:35,061 INFO L428 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:35,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:35,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1813615886, now seen corresponding path program 55 times [2021-04-15 03:42:35,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:35,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057837560] [2021-04-15 03:42:35,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:35,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:35,121 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 27 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:42:35,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057837560] [2021-04-15 03:42:35,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570103730] [2021-04-15 03:42:35,122 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) [2021-04-15 03:42:35,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:35,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-04-15 03:42:35,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:35,366 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 21 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:35,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:35,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13] total 20 [2021-04-15 03:42:35,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684966604] [2021-04-15 03:42:35,367 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-04-15 03:42:35,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:35,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-04-15 03:42:35,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2021-04-15 03:42:35,368 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) [2021-04-15 03:42:36,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:36,218 INFO L93 Difference]: Finished difference Result 5836 states and 14714 transitions. [2021-04-15 03:42:36,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-04-15 03:42:36,219 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 [2021-04-15 03:42:36,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:36,225 INFO L225 Difference]: With dead ends: 5836 [2021-04-15 03:42:36,225 INFO L226 Difference]: Without dead ends: 5818 [2021-04-15 03:42:36,225 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 813 ImplicationChecksByTransitivity, 717.9ms TimeCoverageRelationStatistics Valid=721, Invalid=2249, Unknown=0, NotChecked=0, Total=2970 [2021-04-15 03:42:36,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5818 states. [2021-04-15 03:42:36,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5818 to 4428. [2021-04-15 03:42:36,285 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) [2021-04-15 03:42:36,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4428 states to 4428 states and 11465 transitions. [2021-04-15 03:42:36,292 INFO L78 Accepts]: Start accepts. Automaton has 4428 states and 11465 transitions. Word has length 32 [2021-04-15 03:42:36,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:36,292 INFO L480 AbstractCegarLoop]: Abstraction has 4428 states and 11465 transitions. [2021-04-15 03:42:36,292 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) [2021-04-15 03:42:36,292 INFO L276 IsEmpty]: Start isEmpty. Operand 4428 states and 11465 transitions. [2021-04-15 03:42:36,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-04-15 03:42:36,296 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:36,296 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:36,516 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:36,516 INFO L428 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:36,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:36,517 INFO L82 PathProgramCache]: Analyzing trace with hash -673820798, now seen corresponding path program 56 times [2021-04-15 03:42:36,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:36,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801445113] [2021-04-15 03:42:36,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:36,581 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:36,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801445113] [2021-04-15 03:42:36,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707839537] [2021-04-15 03:42:36,582 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) Waiting until toolchain timeout for monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:36,603 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 03:42:36,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:36,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-04-15 03:42:36,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:36,840 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:36,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:36,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 21 [2021-04-15 03:42:36,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688347680] [2021-04-15 03:42:36,840 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-04-15 03:42:36,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:36,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-04-15 03:42:36,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2021-04-15 03:42:36,841 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) [2021-04-15 03:42:37,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:37,864 INFO L93 Difference]: Finished difference Result 5254 states and 13180 transitions. [2021-04-15 03:42:37,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-04-15 03:42:37,865 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 [2021-04-15 03:42:37,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:37,870 INFO L225 Difference]: With dead ends: 5254 [2021-04-15 03:42:37,871 INFO L226 Difference]: Without dead ends: 5238 [2021-04-15 03:42:37,872 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1414 ImplicationChecksByTransitivity, 964.4ms TimeCoverageRelationStatistics Valid=1130, Invalid=3562, Unknown=0, NotChecked=0, Total=4692 [2021-04-15 03:42:37,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5238 states. [2021-04-15 03:42:37,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5238 to 4516. [2021-04-15 03:42:37,960 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) [2021-04-15 03:42:37,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4516 states to 4516 states and 11702 transitions. [2021-04-15 03:42:37,967 INFO L78 Accepts]: Start accepts. Automaton has 4516 states and 11702 transitions. Word has length 32 [2021-04-15 03:42:37,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:37,967 INFO L480 AbstractCegarLoop]: Abstraction has 4516 states and 11702 transitions. [2021-04-15 03:42:37,967 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) [2021-04-15 03:42:37,967 INFO L276 IsEmpty]: Start isEmpty. Operand 4516 states and 11702 transitions. [2021-04-15 03:42:37,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-04-15 03:42:37,971 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:37,972 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:38,172 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable221 [2021-04-15 03:42:38,172 INFO L428 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:38,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:38,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1175991294, now seen corresponding path program 57 times [2021-04-15 03:42:38,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:38,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016083989] [2021-04-15 03:42:38,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:38,258 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:38,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016083989] [2021-04-15 03:42:38,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444563878] [2021-04-15 03:42:38,259 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 [2021-04-15 03:42:38,289 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-04-15 03:42:38,289 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:38,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-04-15 03:42:38,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:38,523 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:38,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:38,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 22 [2021-04-15 03:42:38,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041265941] [2021-04-15 03:42:38,524 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-04-15 03:42:38,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:38,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-04-15 03:42:38,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2021-04-15 03:42:38,529 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) [2021-04-15 03:42:39,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:39,592 INFO L93 Difference]: Finished difference Result 5594 states and 13918 transitions. [2021-04-15 03:42:39,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-04-15 03:42:39,593 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 [2021-04-15 03:42:39,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:39,615 INFO L225 Difference]: With dead ends: 5594 [2021-04-15 03:42:39,615 INFO L226 Difference]: Without dead ends: 5566 [2021-04-15 03:42:39,615 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1574 ImplicationChecksByTransitivity, 976.2ms TimeCoverageRelationStatistics Valid=1183, Invalid=3787, Unknown=0, NotChecked=0, Total=4970 [2021-04-15 03:42:39,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5566 states. [2021-04-15 03:42:39,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5566 to 4347. [2021-04-15 03:42:39,659 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) [2021-04-15 03:42:39,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4347 states to 4347 states and 11250 transitions. [2021-04-15 03:42:39,665 INFO L78 Accepts]: Start accepts. Automaton has 4347 states and 11250 transitions. Word has length 32 [2021-04-15 03:42:39,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:39,665 INFO L480 AbstractCegarLoop]: Abstraction has 4347 states and 11250 transitions. [2021-04-15 03:42:39,666 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) [2021-04-15 03:42:39,666 INFO L276 IsEmpty]: Start isEmpty. Operand 4347 states and 11250 transitions. [2021-04-15 03:42:39,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-04-15 03:42:39,670 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:39,670 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:39,870 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:39,871 INFO L428 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:39,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:39,871 INFO L82 PathProgramCache]: Analyzing trace with hash 728951162, now seen corresponding path program 58 times [2021-04-15 03:42:39,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:39,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538777151] [2021-04-15 03:42:39,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:39,956 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:39,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538777151] [2021-04-15 03:42:39,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993714331] [2021-04-15 03:42:39,956 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) [2021-04-15 03:42:39,983 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 03:42:39,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:39,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-04-15 03:42:39,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:40,213 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:40,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:40,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 23 [2021-04-15 03:42:40,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951452804] [2021-04-15 03:42:40,213 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-04-15 03:42:40,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:40,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-04-15 03:42:40,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2021-04-15 03:42:40,214 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) [2021-04-15 03:42:41,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:41,413 INFO L93 Difference]: Finished difference Result 5720 states and 14080 transitions. [2021-04-15 03:42:41,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-04-15 03:42:41,413 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 [2021-04-15 03:42:41,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:41,420 INFO L225 Difference]: With dead ends: 5720 [2021-04-15 03:42:41,420 INFO L226 Difference]: Without dead ends: 5686 [2021-04-15 03:42:41,420 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1700 ImplicationChecksByTransitivity, 1078.4ms TimeCoverageRelationStatistics Valid=1246, Invalid=4010, Unknown=0, NotChecked=0, Total=5256 [2021-04-15 03:42:41,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5686 states. [2021-04-15 03:42:41,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5686 to 3872. [2021-04-15 03:42:41,491 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) [2021-04-15 03:42:41,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3872 states to 3872 states and 9984 transitions. [2021-04-15 03:42:41,497 INFO L78 Accepts]: Start accepts. Automaton has 3872 states and 9984 transitions. Word has length 32 [2021-04-15 03:42:41,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:41,497 INFO L480 AbstractCegarLoop]: Abstraction has 3872 states and 9984 transitions. [2021-04-15 03:42:41,497 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) [2021-04-15 03:42:41,498 INFO L276 IsEmpty]: Start isEmpty. Operand 3872 states and 9984 transitions. [2021-04-15 03:42:41,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-04-15 03:42:41,500 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:41,500 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:41,700 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable223 [2021-04-15 03:42:41,701 INFO L428 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:41,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:41,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1717407562, now seen corresponding path program 59 times [2021-04-15 03:42:41,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:41,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599023246] [2021-04-15 03:42:41,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:41,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:41,803 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:42:41,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599023246] [2021-04-15 03:42:41,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650219851] [2021-04-15 03:42:41,804 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 [2021-04-15 03:42:41,831 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-04-15 03:42:41,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:41,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-04-15 03:42:41,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:42,032 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 12 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:42,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:42,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-04-15 03:42:42,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690228822] [2021-04-15 03:42:42,032 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-04-15 03:42:42,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:42,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-04-15 03:42:42,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2021-04-15 03:42:42,038 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) [2021-04-15 03:42:43,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:43,177 INFO L93 Difference]: Finished difference Result 5197 states and 12616 transitions. [2021-04-15 03:42:43,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-04-15 03:42:43,178 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 [2021-04-15 03:42:43,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:43,183 INFO L225 Difference]: With dead ends: 5197 [2021-04-15 03:42:43,183 INFO L226 Difference]: Without dead ends: 5197 [2021-04-15 03:42:43,184 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1355 ImplicationChecksByTransitivity, 1001.5ms TimeCoverageRelationStatistics Valid=1262, Invalid=3708, Unknown=0, NotChecked=0, Total=4970 [2021-04-15 03:42:43,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5197 states. [2021-04-15 03:42:43,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5197 to 3402. [2021-04-15 03:42:43,221 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) [2021-04-15 03:42:43,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3402 states to 3402 states and 8718 transitions. [2021-04-15 03:42:43,225 INFO L78 Accepts]: Start accepts. Automaton has 3402 states and 8718 transitions. Word has length 32 [2021-04-15 03:42:43,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:43,225 INFO L480 AbstractCegarLoop]: Abstraction has 3402 states and 8718 transitions. [2021-04-15 03:42:43,225 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) [2021-04-15 03:42:43,225 INFO L276 IsEmpty]: Start isEmpty. Operand 3402 states and 8718 transitions. [2021-04-15 03:42:43,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-04-15 03:42:43,228 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:43,228 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:43,428 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable224 [2021-04-15 03:42:43,429 INFO L428 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:43,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:43,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1240500466, now seen corresponding path program 60 times [2021-04-15 03:42:43,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:43,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486097509] [2021-04-15 03:42:43,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:43,517 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:42:43,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486097509] [2021-04-15 03:42:43,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022792062] [2021-04-15 03:42:43,517 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 [2021-04-15 03:42:43,545 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-04-15 03:42:43,546 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:43,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-04-15 03:42:43,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:43,778 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:43,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:43,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 23 [2021-04-15 03:42:43,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780664753] [2021-04-15 03:42:43,779 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-04-15 03:42:43,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:43,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-04-15 03:42:43,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=453, Unknown=0, NotChecked=0, Total=552 [2021-04-15 03:42:43,779 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) [2021-04-15 03:42:45,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:45,158 INFO L93 Difference]: Finished difference Result 4252 states and 10318 transitions. [2021-04-15 03:42:45,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-04-15 03:42:45,158 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 [2021-04-15 03:42:45,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:45,162 INFO L225 Difference]: With dead ends: 4252 [2021-04-15 03:42:45,162 INFO L226 Difference]: Without dead ends: 4186 [2021-04-15 03:42:45,163 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1720 ImplicationChecksByTransitivity, 1224.7ms TimeCoverageRelationStatistics Valid=1147, Invalid=4109, Unknown=0, NotChecked=0, Total=5256 [2021-04-15 03:42:45,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4186 states. [2021-04-15 03:42:45,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4186 to 3264. [2021-04-15 03:42:45,198 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) [2021-04-15 03:42:45,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3264 states to 3264 states and 8316 transitions. [2021-04-15 03:42:45,202 INFO L78 Accepts]: Start accepts. Automaton has 3264 states and 8316 transitions. Word has length 32 [2021-04-15 03:42:45,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:45,202 INFO L480 AbstractCegarLoop]: Abstraction has 3264 states and 8316 transitions. [2021-04-15 03:42:45,203 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) [2021-04-15 03:42:45,203 INFO L276 IsEmpty]: Start isEmpty. Operand 3264 states and 8316 transitions. [2021-04-15 03:42:45,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-04-15 03:42:45,205 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:45,205 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:45,405 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable225 [2021-04-15 03:42:45,405 INFO L428 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:45,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:45,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1425607606, now seen corresponding path program 61 times [2021-04-15 03:42:45,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:45,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989759666] [2021-04-15 03:42:45,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:45,491 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 26 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:42:45,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989759666] [2021-04-15 03:42:45,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975995103] [2021-04-15 03:42:45,492 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 [2021-04-15 03:42:45,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:45,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-04-15 03:42:45,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:45,708 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 12 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:45,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:45,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 23 [2021-04-15 03:42:45,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770739759] [2021-04-15 03:42:45,709 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-04-15 03:42:45,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:45,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-04-15 03:42:45,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=452, Unknown=0, NotChecked=0, Total=552 [2021-04-15 03:42:45,709 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) [2021-04-15 03:42:46,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:46,937 INFO L93 Difference]: Finished difference Result 4881 states and 11710 transitions. [2021-04-15 03:42:46,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-04-15 03:42:46,939 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 [2021-04-15 03:42:46,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:46,944 INFO L225 Difference]: With dead ends: 4881 [2021-04-15 03:42:46,944 INFO L226 Difference]: Without dead ends: 4881 [2021-04-15 03:42:46,945 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1700 ImplicationChecksByTransitivity, 1069.9ms TimeCoverageRelationStatistics Valid=1473, Invalid=4077, Unknown=0, NotChecked=0, Total=5550 [2021-04-15 03:42:46,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4881 states. [2021-04-15 03:42:46,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4881 to 2860. [2021-04-15 03:42:46,979 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) [2021-04-15 03:42:46,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2860 states to 2860 states and 7200 transitions. [2021-04-15 03:42:46,982 INFO L78 Accepts]: Start accepts. Automaton has 2860 states and 7200 transitions. Word has length 32 [2021-04-15 03:42:46,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:46,983 INFO L480 AbstractCegarLoop]: Abstraction has 2860 states and 7200 transitions. [2021-04-15 03:42:46,983 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) [2021-04-15 03:42:46,983 INFO L276 IsEmpty]: Start isEmpty. Operand 2860 states and 7200 transitions. [2021-04-15 03:42:46,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-04-15 03:42:46,984 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:46,985 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:47,185 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226,62 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:47,186 INFO L428 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:47,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:47,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1428685554, now seen corresponding path program 62 times [2021-04-15 03:42:47,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:47,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194052169] [2021-04-15 03:42:47,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:47,263 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:42:47,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194052169] [2021-04-15 03:42:47,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415164071] [2021-04-15 03:42:47,263 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) [2021-04-15 03:42:47,297 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 03:42:47,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:47,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-04-15 03:42:47,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:47,530 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:47,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:47,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 22 [2021-04-15 03:42:47,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182730836] [2021-04-15 03:42:47,531 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-04-15 03:42:47,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:47,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-04-15 03:42:47,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2021-04-15 03:42:47,532 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) [2021-04-15 03:42:48,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:48,619 INFO L93 Difference]: Finished difference Result 3661 states and 8825 transitions. [2021-04-15 03:42:48,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-04-15 03:42:48,620 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 [2021-04-15 03:42:48,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:48,624 INFO L225 Difference]: With dead ends: 3661 [2021-04-15 03:42:48,624 INFO L226 Difference]: Without dead ends: 3622 [2021-04-15 03:42:48,624 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1460 ImplicationChecksByTransitivity, 957.2ms TimeCoverageRelationStatistics Valid=968, Invalid=3454, Unknown=0, NotChecked=0, Total=4422 [2021-04-15 03:42:48,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2021-04-15 03:42:48,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 2809. [2021-04-15 03:42:48,655 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) [2021-04-15 03:42:48,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2809 states to 2809 states and 7043 transitions. [2021-04-15 03:42:48,658 INFO L78 Accepts]: Start accepts. Automaton has 2809 states and 7043 transitions. Word has length 32 [2021-04-15 03:42:48,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:48,658 INFO L480 AbstractCegarLoop]: Abstraction has 2809 states and 7043 transitions. [2021-04-15 03:42:48,658 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) [2021-04-15 03:42:48,658 INFO L276 IsEmpty]: Start isEmpty. Operand 2809 states and 7043 transitions. [2021-04-15 03:42:48,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-04-15 03:42:48,660 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:48,660 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:48,862 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable227 [2021-04-15 03:42:48,862 INFO L428 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:48,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:48,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1690671434, now seen corresponding path program 63 times [2021-04-15 03:42:48,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:48,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963347630] [2021-04-15 03:42:48,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:48,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:48,940 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 13 proven. 27 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:42:48,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963347630] [2021-04-15 03:42:48,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131366192] [2021-04-15 03:42:48,940 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) [2021-04-15 03:42:48,978 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-04-15 03:42:48,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:48,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-04-15 03:42:48,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:49,208 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 12 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:49,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:49,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 22 [2021-04-15 03:42:49,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666885036] [2021-04-15 03:42:49,208 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-04-15 03:42:49,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:49,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-04-15 03:42:49,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2021-04-15 03:42:49,209 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) [2021-04-15 03:42:50,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:50,581 INFO L93 Difference]: Finished difference Result 4911 states and 11694 transitions. [2021-04-15 03:42:50,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-04-15 03:42:50,581 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 [2021-04-15 03:42:50,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:50,586 INFO L225 Difference]: With dead ends: 4911 [2021-04-15 03:42:50,586 INFO L226 Difference]: Without dead ends: 4911 [2021-04-15 03:42:50,587 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2155 ImplicationChecksByTransitivity, 1233.5ms TimeCoverageRelationStatistics Valid=1768, Invalid=4552, Unknown=0, NotChecked=0, Total=6320 [2021-04-15 03:42:50,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4911 states. [2021-04-15 03:42:50,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4911 to 3307. [2021-04-15 03:42:50,628 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) [2021-04-15 03:42:50,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3307 states to 3307 states and 8203 transitions. [2021-04-15 03:42:50,632 INFO L78 Accepts]: Start accepts. Automaton has 3307 states and 8203 transitions. Word has length 32 [2021-04-15 03:42:50,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:50,632 INFO L480 AbstractCegarLoop]: Abstraction has 3307 states and 8203 transitions. [2021-04-15 03:42:50,632 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) [2021-04-15 03:42:50,632 INFO L276 IsEmpty]: Start isEmpty. Operand 3307 states and 8203 transitions. [2021-04-15 03:42:50,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-04-15 03:42:50,634 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:50,635 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:50,835 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228,64 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:50,835 INFO L428 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:50,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:50,835 INFO L82 PathProgramCache]: Analyzing trace with hash -604635918, now seen corresponding path program 64 times [2021-04-15 03:42:50,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:50,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024921508] [2021-04-15 03:42:50,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:50,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:50,899 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:42:50,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024921508] [2021-04-15 03:42:50,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531250701] [2021-04-15 03:42:50,899 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 [2021-04-15 03:42:50,919 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 03:42:50,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:50,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-04-15 03:42:50,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:51,129 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:51,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:51,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 21 [2021-04-15 03:42:51,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869026415] [2021-04-15 03:42:51,130 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-04-15 03:42:51,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:51,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-04-15 03:42:51,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2021-04-15 03:42:51,131 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) [2021-04-15 03:42:52,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:52,062 INFO L93 Difference]: Finished difference Result 3840 states and 9263 transitions. [2021-04-15 03:42:52,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-04-15 03:42:52,063 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 [2021-04-15 03:42:52,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:52,067 INFO L225 Difference]: With dead ends: 3840 [2021-04-15 03:42:52,067 INFO L226 Difference]: Without dead ends: 3822 [2021-04-15 03:42:52,068 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1269 ImplicationChecksByTransitivity, 835.9ms TimeCoverageRelationStatistics Valid=879, Invalid=3027, Unknown=0, NotChecked=0, Total=3906 [2021-04-15 03:42:52,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3822 states. [2021-04-15 03:42:52,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3822 to 3381. [2021-04-15 03:42:52,106 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) [2021-04-15 03:42:52,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3381 states to 3381 states and 8403 transitions. [2021-04-15 03:42:52,110 INFO L78 Accepts]: Start accepts. Automaton has 3381 states and 8403 transitions. Word has length 32 [2021-04-15 03:42:52,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:52,111 INFO L480 AbstractCegarLoop]: Abstraction has 3381 states and 8403 transitions. [2021-04-15 03:42:52,111 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) [2021-04-15 03:42:52,111 INFO L276 IsEmpty]: Start isEmpty. Operand 3381 states and 8403 transitions. [2021-04-15 03:42:52,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-04-15 03:42:52,113 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:52,113 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:52,313 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229,65 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:52,313 INFO L428 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:52,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:52,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1474920010, now seen corresponding path program 65 times [2021-04-15 03:42:52,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:52,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310167694] [2021-04-15 03:42:52,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:52,382 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 12 proven. 28 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:42:52,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310167694] [2021-04-15 03:42:52,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984980200] [2021-04-15 03:42:52,382 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 [2021-04-15 03:42:52,403 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-04-15 03:42:52,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:52,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-04-15 03:42:52,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:52,633 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 12 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:52,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:52,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 21 [2021-04-15 03:42:52,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384039604] [2021-04-15 03:42:52,633 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-04-15 03:42:52,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:52,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-04-15 03:42:52,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2021-04-15 03:42:52,634 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) [2021-04-15 03:42:54,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:54,013 INFO L93 Difference]: Finished difference Result 6180 states and 15068 transitions. [2021-04-15 03:42:54,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-04-15 03:42:54,013 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 [2021-04-15 03:42:54,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:54,019 INFO L225 Difference]: With dead ends: 6180 [2021-04-15 03:42:54,019 INFO L226 Difference]: Without dead ends: 6180 [2021-04-15 03:42:54,020 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2540 ImplicationChecksByTransitivity, 1237.6ms TimeCoverageRelationStatistics Valid=2010, Invalid=4962, Unknown=0, NotChecked=0, Total=6972 [2021-04-15 03:42:54,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6180 states. [2021-04-15 03:42:54,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6180 to 5144. [2021-04-15 03:42:54,090 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) [2021-04-15 03:42:54,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5144 states to 5144 states and 12966 transitions. [2021-04-15 03:42:54,097 INFO L78 Accepts]: Start accepts. Automaton has 5144 states and 12966 transitions. Word has length 32 [2021-04-15 03:42:54,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:54,097 INFO L480 AbstractCegarLoop]: Abstraction has 5144 states and 12966 transitions. [2021-04-15 03:42:54,098 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) [2021-04-15 03:42:54,098 INFO L276 IsEmpty]: Start isEmpty. Operand 5144 states and 12966 transitions. [2021-04-15 03:42:54,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-04-15 03:42:54,101 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:54,101 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:54,301 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable230 [2021-04-15 03:42:54,302 INFO L428 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:54,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:54,302 INFO L82 PathProgramCache]: Analyzing trace with hash 874026652, now seen corresponding path program 66 times [2021-04-15 03:42:54,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:54,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105162562] [2021-04-15 03:42:54,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:54,362 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 21 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:42:54,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105162562] [2021-04-15 03:42:54,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063342557] [2021-04-15 03:42:54,362 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 [2021-04-15 03:42:54,383 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-04-15 03:42:54,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:54,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-04-15 03:42:54,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:54,572 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:54,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:54,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13] total 20 [2021-04-15 03:42:54,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256655999] [2021-04-15 03:42:54,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-04-15 03:42:54,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:54,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-04-15 03:42:54,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2021-04-15 03:42:54,573 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) [2021-04-15 03:42:55,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:55,507 INFO L93 Difference]: Finished difference Result 6009 states and 14677 transitions. [2021-04-15 03:42:55,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-04-15 03:42:55,507 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 [2021-04-15 03:42:55,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:55,513 INFO L225 Difference]: With dead ends: 6009 [2021-04-15 03:42:55,513 INFO L226 Difference]: Without dead ends: 6005 [2021-04-15 03:42:55,514 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1206 ImplicationChecksByTransitivity, 810.7ms TimeCoverageRelationStatistics Valid=1087, Invalid=2819, Unknown=0, NotChecked=0, Total=3906 [2021-04-15 03:42:55,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6005 states. [2021-04-15 03:42:55,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6005 to 5062. [2021-04-15 03:42:55,594 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) [2021-04-15 03:42:55,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5062 states to 5062 states and 12739 transitions. [2021-04-15 03:42:55,601 INFO L78 Accepts]: Start accepts. Automaton has 5062 states and 12739 transitions. Word has length 32 [2021-04-15 03:42:55,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:55,601 INFO L480 AbstractCegarLoop]: Abstraction has 5062 states and 12739 transitions. [2021-04-15 03:42:55,601 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) [2021-04-15 03:42:55,601 INFO L276 IsEmpty]: Start isEmpty. Operand 5062 states and 12739 transitions. [2021-04-15 03:42:55,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-04-15 03:42:55,605 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:55,605 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:55,805 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231,67 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:55,805 INFO L428 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:55,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:55,806 INFO L82 PathProgramCache]: Analyzing trace with hash 367680386, now seen corresponding path program 67 times [2021-04-15 03:42:55,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:55,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893569688] [2021-04-15 03:42:55,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:55,869 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 17 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:42:55,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893569688] [2021-04-15 03:42:55,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981341129] [2021-04-15 03:42:55,869 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 [2021-04-15 03:42:55,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:55,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-04-15 03:42:55,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:56,092 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:56,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:56,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 21 [2021-04-15 03:42:56,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296345207] [2021-04-15 03:42:56,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-04-15 03:42:56,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:56,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-04-15 03:42:56,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2021-04-15 03:42:56,093 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) [2021-04-15 03:42:56,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:56,986 INFO L93 Difference]: Finished difference Result 6244 states and 15277 transitions. [2021-04-15 03:42:56,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-04-15 03:42:56,987 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 [2021-04-15 03:42:56,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:56,993 INFO L225 Difference]: With dead ends: 6244 [2021-04-15 03:42:56,993 INFO L226 Difference]: Without dead ends: 6232 [2021-04-15 03:42:56,993 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1197 ImplicationChecksByTransitivity, 806.5ms TimeCoverageRelationStatistics Valid=1011, Invalid=2895, Unknown=0, NotChecked=0, Total=3906 [2021-04-15 03:42:57,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6232 states. [2021-04-15 03:42:57,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6232 to 5108. [2021-04-15 03:42:57,067 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) [2021-04-15 03:42:57,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5108 states to 5108 states and 12884 transitions. [2021-04-15 03:42:57,074 INFO L78 Accepts]: Start accepts. Automaton has 5108 states and 12884 transitions. Word has length 32 [2021-04-15 03:42:57,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:57,074 INFO L480 AbstractCegarLoop]: Abstraction has 5108 states and 12884 transitions. [2021-04-15 03:42:57,074 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) [2021-04-15 03:42:57,074 INFO L276 IsEmpty]: Start isEmpty. Operand 5108 states and 12884 transitions. [2021-04-15 03:42:57,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-04-15 03:42:57,077 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:57,077 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:57,278 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232,68 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:57,278 INFO L428 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:57,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:57,278 INFO L82 PathProgramCache]: Analyzing trace with hash 140459006, now seen corresponding path program 68 times [2021-04-15 03:42:57,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:57,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634002884] [2021-04-15 03:42:57,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:57,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:57,358 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 26 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:42:57,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634002884] [2021-04-15 03:42:57,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275156997] [2021-04-15 03:42:57,358 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) [2021-04-15 03:42:57,388 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 03:42:57,388 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:57,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-04-15 03:42:57,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:42:57,623 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 13 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:57,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:57,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 22 [2021-04-15 03:42:57,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125513357] [2021-04-15 03:42:57,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-04-15 03:42:57,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:57,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-04-15 03:42:57,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=413, Unknown=0, NotChecked=0, Total=506 [2021-04-15 03:42:57,624 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) [2021-04-15 03:42:58,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:42:58,593 INFO L93 Difference]: Finished difference Result 6722 states and 16413 transitions. [2021-04-15 03:42:58,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-04-15 03:42:58,594 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 [2021-04-15 03:42:58,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:42:58,600 INFO L225 Difference]: With dead ends: 6722 [2021-04-15 03:42:58,600 INFO L226 Difference]: Without dead ends: 6702 [2021-04-15 03:42:58,600 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1272 ImplicationChecksByTransitivity, 891.5ms TimeCoverageRelationStatistics Valid=1025, Invalid=3135, Unknown=0, NotChecked=0, Total=4160 [2021-04-15 03:42:58,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6702 states. [2021-04-15 03:42:58,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6702 to 5738. [2021-04-15 03:42:58,670 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) [2021-04-15 03:42:58,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5738 states to 5738 states and 14504 transitions. [2021-04-15 03:42:58,679 INFO L78 Accepts]: Start accepts. Automaton has 5738 states and 14504 transitions. Word has length 32 [2021-04-15 03:42:58,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:42:58,679 INFO L480 AbstractCegarLoop]: Abstraction has 5738 states and 14504 transitions. [2021-04-15 03:42:58,679 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) [2021-04-15 03:42:58,679 INFO L276 IsEmpty]: Start isEmpty. Operand 5738 states and 14504 transitions. [2021-04-15 03:42:58,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-04-15 03:42:58,683 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:42:58,683 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:42:58,883 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable233 [2021-04-15 03:42:58,883 INFO L428 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:42:58,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:42:58,884 INFO L82 PathProgramCache]: Analyzing trace with hash 824044922, now seen corresponding path program 69 times [2021-04-15 03:42:58,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:42:58,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096344183] [2021-04-15 03:42:58,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:42:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:42:58,966 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:42:58,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096344183] [2021-04-15 03:42:58,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793266378] [2021-04-15 03:42:58,966 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 [2021-04-15 03:42:58,987 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-04-15 03:42:58,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:42:58,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-04-15 03:42:58,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:42:59,240 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:42:59,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:42:59,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 23 [2021-04-15 03:42:59,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135951398] [2021-04-15 03:42:59,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-04-15 03:42:59,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:42:59,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-04-15 03:42:59,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2021-04-15 03:42:59,241 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) [2021-04-15 03:43:00,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:43:00,352 INFO L93 Difference]: Finished difference Result 7634 states and 18636 transitions. [2021-04-15 03:43:00,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-04-15 03:43:00,352 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 [2021-04-15 03:43:00,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:43:00,360 INFO L225 Difference]: With dead ends: 7634 [2021-04-15 03:43:00,360 INFO L226 Difference]: Without dead ends: 7606 [2021-04-15 03:43:00,361 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1454 ImplicationChecksByTransitivity, 1047.2ms TimeCoverageRelationStatistics Valid=1128, Invalid=3564, Unknown=0, NotChecked=0, Total=4692 [2021-04-15 03:43:00,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7606 states. [2021-04-15 03:43:00,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7606 to 6549. [2021-04-15 03:43:00,451 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) [2021-04-15 03:43:00,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6549 states to 6549 states and 16556 transitions. [2021-04-15 03:43:00,462 INFO L78 Accepts]: Start accepts. Automaton has 6549 states and 16556 transitions. Word has length 32 [2021-04-15 03:43:00,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:43:00,462 INFO L480 AbstractCegarLoop]: Abstraction has 6549 states and 16556 transitions. [2021-04-15 03:43:00,462 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) [2021-04-15 03:43:00,462 INFO L276 IsEmpty]: Start isEmpty. Operand 6549 states and 16556 transitions. [2021-04-15 03:43:00,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-04-15 03:43:00,466 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:43:00,467 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:43:00,667 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable234 [2021-04-15 03:43:00,667 INFO L428 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:43:00,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:43:00,667 INFO L82 PathProgramCache]: Analyzing trace with hash 620113910, now seen corresponding path program 70 times [2021-04-15 03:43:00,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:43:00,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133502758] [2021-04-15 03:43:00,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:43:00,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:00,759 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 21 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:00,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133502758] [2021-04-15 03:43:00,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65633026] [2021-04-15 03:43:00,759 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 [2021-04-15 03:43:00,779 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 03:43:00,779 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:43:00,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-04-15 03:43:00,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:43:00,995 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 21 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:00,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:43:00,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-04-15 03:43:00,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687418959] [2021-04-15 03:43:00,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-04-15 03:43:00,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:43:00,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-04-15 03:43:00,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2021-04-15 03:43:00,996 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) [2021-04-15 03:43:02,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:43:02,106 INFO L93 Difference]: Finished difference Result 7611 states and 18726 transitions. [2021-04-15 03:43:02,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-04-15 03:43:02,107 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 [2021-04-15 03:43:02,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:43:02,114 INFO L225 Difference]: With dead ends: 7611 [2021-04-15 03:43:02,115 INFO L226 Difference]: Without dead ends: 7575 [2021-04-15 03:43:02,115 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1782 ImplicationChecksByTransitivity, 1047.2ms TimeCoverageRelationStatistics Valid=1318, Invalid=4232, Unknown=0, NotChecked=0, Total=5550 [2021-04-15 03:43:02,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7575 states. [2021-04-15 03:43:02,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7575 to 6635. [2021-04-15 03:43:02,204 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) [2021-04-15 03:43:02,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6635 states to 6635 states and 16832 transitions. [2021-04-15 03:43:02,213 INFO L78 Accepts]: Start accepts. Automaton has 6635 states and 16832 transitions. Word has length 32 [2021-04-15 03:43:02,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:43:02,214 INFO L480 AbstractCegarLoop]: Abstraction has 6635 states and 16832 transitions. [2021-04-15 03:43:02,214 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) [2021-04-15 03:43:02,214 INFO L276 IsEmpty]: Start isEmpty. Operand 6635 states and 16832 transitions. [2021-04-15 03:43:02,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-04-15 03:43:02,218 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:43:02,218 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:43:02,419 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable235 [2021-04-15 03:43:02,419 INFO L428 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:43:02,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:43:02,419 INFO L82 PathProgramCache]: Analyzing trace with hash -617394444, now seen corresponding path program 71 times [2021-04-15 03:43:02,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:43:02,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202085026] [2021-04-15 03:43:02,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:43:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:02,458 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:02,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202085026] [2021-04-15 03:43:02,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610456549] [2021-04-15 03:43:02,458 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 [2021-04-15 03:43:02,480 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-04-15 03:43:02,480 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:43:02,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 39 conjunts are in the unsatisfiable core [2021-04-15 03:43:02,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:43:02,692 INFO L354 Elim1Store]: treesize reduction 72, result has 40.5 percent of original size [2021-04-15 03:43:02,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:43:02,978 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-04-15 03:43:03,006 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:43:03,130 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-04-15 03:43:03,130 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:130, output treesize:171 [2021-04-15 03:43:03,356 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-04-15 03:43:03,753 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-04-15 03:43:04,131 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 38 [2021-04-15 03:43:04,258 INFO L354 Elim1Store]: treesize reduction 78, result has 3.7 percent of original size [2021-04-15 03:43:04,258 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 [2021-04-15 03:43:04,260 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:43:04,340 INFO L628 ElimStorePlain]: treesize reduction 158, result has 59.5 percent of original size [2021-04-15 03:43:04,389 INFO L354 Elim1Store]: treesize reduction 40, result has 50.6 percent of original size [2021-04-15 03:43:04,390 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 [2021-04-15 03:43:04,392 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-04-15 03:43:04,401 INFO L628 ElimStorePlain]: treesize reduction 169, result has 1.7 percent of original size [2021-04-15 03:43:04,402 INFO L518 ElimStorePlain]: Eliminatee v_prenex_46 vanished before elimination [2021-04-15 03:43:04,402 INFO L518 ElimStorePlain]: Eliminatee v_prenex_44 vanished before elimination [2021-04-15 03:43:04,402 INFO L518 ElimStorePlain]: Eliminatee v_prenex_48 vanished before elimination [2021-04-15 03:43:04,402 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:43:04,402 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 10 variables, input treesize:486, output treesize:3 [2021-04-15 03:43:04,408 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:04,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:43:04,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 17 [2021-04-15 03:43:04,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71891301] [2021-04-15 03:43:04,409 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-04-15 03:43:04,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:43:04,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-04-15 03:43:04,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-04-15 03:43:04,409 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) [2021-04-15 03:43:04,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:43:04,695 INFO L93 Difference]: Finished difference Result 7845 states and 19757 transitions. [2021-04-15 03:43:04,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-04-15 03:43:04,695 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 [2021-04-15 03:43:04,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:43:04,704 INFO L225 Difference]: With dead ends: 7845 [2021-04-15 03:43:04,705 INFO L226 Difference]: Without dead ends: 7838 [2021-04-15 03:43:04,705 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 767.3ms TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-04-15 03:43:04,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7838 states. [2021-04-15 03:43:04,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7838 to 7360. [2021-04-15 03:43:04,802 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) [2021-04-15 03:43:04,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7360 states to 7360 states and 18734 transitions. [2021-04-15 03:43:04,814 INFO L78 Accepts]: Start accepts. Automaton has 7360 states and 18734 transitions. Word has length 34 [2021-04-15 03:43:04,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:43:04,814 INFO L480 AbstractCegarLoop]: Abstraction has 7360 states and 18734 transitions. [2021-04-15 03:43:04,814 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) [2021-04-15 03:43:04,814 INFO L276 IsEmpty]: Start isEmpty. Operand 7360 states and 18734 transitions. [2021-04-15 03:43:04,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-04-15 03:43:04,823 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:43:04,823 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:43:05,033 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable236 [2021-04-15 03:43:05,033 INFO L428 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:43:05,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:43:05,033 INFO L82 PathProgramCache]: Analyzing trace with hash -100122124, now seen corresponding path program 72 times [2021-04-15 03:43:05,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:43:05,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476922112] [2021-04-15 03:43:05,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:43:05,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:05,072 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:43:05,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476922112] [2021-04-15 03:43:05,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666599416] [2021-04-15 03:43:05,073 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) Waiting until toolchain timeout for monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:43:05,097 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-04-15 03:43:05,097 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:43:05,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 41 conjunts are in the unsatisfiable core [2021-04-15 03:43:05,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:43:05,338 INFO L446 ElimStorePlain]: Different costs {10=[f], 36=[f_inv]} [2021-04-15 03:43:05,385 INFO L354 Elim1Store]: treesize reduction 32, result has 60.5 percent of original size [2021-04-15 03:43:05,385 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 [2021-04-15 03:43:05,710 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-04-15 03:43:05,734 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:43:05,770 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:43:05,770 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 [2021-04-15 03:43:05,850 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-04-15 03:43:05,851 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:43:05,851 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:43:05,851 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:158, output treesize:3 [2021-04-15 03:43:05,861 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:43:05,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:43:05,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 17 [2021-04-15 03:43:05,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193635749] [2021-04-15 03:43:05,862 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-04-15 03:43:05,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:43:05,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-04-15 03:43:05,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-04-15 03:43:05,862 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) [2021-04-15 03:43:05,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:43:05,971 INFO L93 Difference]: Finished difference Result 8008 states and 20271 transitions. [2021-04-15 03:43:05,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 03:43:05,971 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 [2021-04-15 03:43:05,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:43:05,981 INFO L225 Difference]: With dead ends: 8008 [2021-04-15 03:43:05,981 INFO L226 Difference]: Without dead ends: 7999 [2021-04-15 03:43:05,981 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 219.4ms TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-04-15 03:43:05,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7999 states. [2021-04-15 03:43:06,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7999 to 7776. [2021-04-15 03:43:06,079 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) [2021-04-15 03:43:06,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7776 states to 7776 states and 19880 transitions. [2021-04-15 03:43:06,091 INFO L78 Accepts]: Start accepts. Automaton has 7776 states and 19880 transitions. Word has length 34 [2021-04-15 03:43:06,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:43:06,091 INFO L480 AbstractCegarLoop]: Abstraction has 7776 states and 19880 transitions. [2021-04-15 03:43:06,091 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) [2021-04-15 03:43:06,091 INFO L276 IsEmpty]: Start isEmpty. Operand 7776 states and 19880 transitions. [2021-04-15 03:43:06,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-04-15 03:43:06,098 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:43:06,098 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:43:06,319 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable448 [2021-04-15 03:43:06,319 INFO L428 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:43:06,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:43:06,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1652349196, now seen corresponding path program 73 times [2021-04-15 03:43:06,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:43:06,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786687955] [2021-04-15 03:43:06,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:43:06,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:06,359 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:43:06,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786687955] [2021-04-15 03:43:06,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488290335] [2021-04-15 03:43:06,359 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 [2021-04-15 03:43:06,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:06,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 33 conjunts are in the unsatisfiable core [2021-04-15 03:43:06,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:43:06,618 INFO L354 Elim1Store]: treesize reduction 154, result has 36.1 percent of original size [2021-04-15 03:43:06,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2021-04-15 03:43:06,634 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:43:06,663 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:43:06,665 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:43:06,665 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:119, output treesize:124 [2021-04-15 03:43:06,724 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-04-15 03:43:06,913 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 31 [2021-04-15 03:43:06,931 INFO L446 ElimStorePlain]: Different costs {3=[f], 6=[v_prenex_50], 10=[v_prenex_51]} [2021-04-15 03:43:06,944 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:43:06,944 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 [2021-04-15 03:43:06,946 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:43:06,951 INFO L628 ElimStorePlain]: treesize reduction 97, result has 3.0 percent of original size [2021-04-15 03:43:06,952 INFO L518 ElimStorePlain]: Eliminatee v_prenex_50 vanished before elimination [2021-04-15 03:43:06,952 INFO L518 ElimStorePlain]: Eliminatee v_prenex_51 vanished before elimination [2021-04-15 03:43:06,952 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:43:06,952 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:116, output treesize:3 [2021-04-15 03:43:06,962 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:43:06,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:43:06,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 17 [2021-04-15 03:43:06,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318490984] [2021-04-15 03:43:06,962 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-04-15 03:43:06,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:43:06,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-04-15 03:43:06,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-04-15 03:43:06,963 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) [2021-04-15 03:43:07,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:43:07,129 INFO L93 Difference]: Finished difference Result 8649 states and 21915 transitions. [2021-04-15 03:43:07,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-04-15 03:43:07,129 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 [2021-04-15 03:43:07,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:43:07,139 INFO L225 Difference]: With dead ends: 8649 [2021-04-15 03:43:07,139 INFO L226 Difference]: Without dead ends: 8624 [2021-04-15 03:43:07,139 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 344.2ms TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-04-15 03:43:07,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8624 states. [2021-04-15 03:43:07,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8624 to 8091. [2021-04-15 03:43:07,240 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) [2021-04-15 03:43:07,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8091 states to 8091 states and 20770 transitions. [2021-04-15 03:43:07,252 INFO L78 Accepts]: Start accepts. Automaton has 8091 states and 20770 transitions. Word has length 34 [2021-04-15 03:43:07,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:43:07,252 INFO L480 AbstractCegarLoop]: Abstraction has 8091 states and 20770 transitions. [2021-04-15 03:43:07,252 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) [2021-04-15 03:43:07,252 INFO L276 IsEmpty]: Start isEmpty. Operand 8091 states and 20770 transitions. [2021-04-15 03:43:07,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-04-15 03:43:07,259 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:43:07,259 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:43:07,459 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable607,74 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:43:07,459 INFO L428 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:43:07,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:43:07,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1306053620, now seen corresponding path program 74 times [2021-04-15 03:43:07,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:43:07,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993687480] [2021-04-15 03:43:07,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:43:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:07,500 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:43:07,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993687480] [2021-04-15 03:43:07,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815386976] [2021-04-15 03:43:07,500 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 [2021-04-15 03:43:07,527 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 03:43:07,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:43:07,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 33 conjunts are in the unsatisfiable core [2021-04-15 03:43:07,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:43:07,766 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 40 [2021-04-15 03:43:07,767 INFO L354 Elim1Store]: treesize reduction 79, result has 47.7 percent of original size [2021-04-15 03:43:07,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2021-04-15 03:43:07,770 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:43:07,799 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:43:07,801 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:43:07,801 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:117, output treesize:132 [2021-04-15 03:43:07,905 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-04-15 03:43:08,145 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 35 [2021-04-15 03:43:08,264 INFO L446 ElimStorePlain]: Different costs {6=[f], 10=[v_prenex_54, v_prenex_55]} [2021-04-15 03:43:08,286 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:43:08,287 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 [2021-04-15 03:43:08,289 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:43:08,295 INFO L628 ElimStorePlain]: treesize reduction 153, result has 1.9 percent of original size [2021-04-15 03:43:08,295 INFO L518 ElimStorePlain]: Eliminatee v_prenex_54 vanished before elimination [2021-04-15 03:43:08,295 INFO L518 ElimStorePlain]: Eliminatee v_prenex_55 vanished before elimination [2021-04-15 03:43:08,295 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:43:08,295 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:176, output treesize:3 [2021-04-15 03:43:08,305 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:43:08,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:43:08,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 17 [2021-04-15 03:43:08,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047969941] [2021-04-15 03:43:08,306 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-04-15 03:43:08,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:43:08,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-04-15 03:43:08,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-04-15 03:43:08,306 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) [2021-04-15 03:43:08,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:43:08,581 INFO L93 Difference]: Finished difference Result 9127 states and 23212 transitions. [2021-04-15 03:43:08,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-04-15 03:43:08,582 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 [2021-04-15 03:43:08,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:43:08,592 INFO L225 Difference]: With dead ends: 9127 [2021-04-15 03:43:08,592 INFO L226 Difference]: Without dead ends: 9098 [2021-04-15 03:43:08,593 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 406.3ms TimeCoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-04-15 03:43:08,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9098 states. [2021-04-15 03:43:08,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9098 to 8475. [2021-04-15 03:43:08,698 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) [2021-04-15 03:43:08,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8475 states to 8475 states and 21838 transitions. [2021-04-15 03:43:08,711 INFO L78 Accepts]: Start accepts. Automaton has 8475 states and 21838 transitions. Word has length 34 [2021-04-15 03:43:08,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:43:08,711 INFO L480 AbstractCegarLoop]: Abstraction has 8475 states and 21838 transitions. [2021-04-15 03:43:08,712 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) [2021-04-15 03:43:08,712 INFO L276 IsEmpty]: Start isEmpty. Operand 8475 states and 21838 transitions. [2021-04-15 03:43:08,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-04-15 03:43:08,717 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:43:08,717 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:43:08,917 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable612 [2021-04-15 03:43:08,918 INFO L428 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:43:08,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:43:08,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1062809844, now seen corresponding path program 75 times [2021-04-15 03:43:08,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:43:08,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720048479] [2021-04-15 03:43:08,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:43:08,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:08,957 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:43:08,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720048479] [2021-04-15 03:43:08,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743324566] [2021-04-15 03:43:08,957 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) [2021-04-15 03:43:09,007 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-04-15 03:43:09,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:43:09,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 37 conjunts are in the unsatisfiable core [2021-04-15 03:43:09,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:43:09,206 INFO L446 ElimStorePlain]: Different costs {15=[f_inv], 28=[f]} [2021-04-15 03:43:09,260 INFO L354 Elim1Store]: treesize reduction 74, result has 43.5 percent of original size [2021-04-15 03:43:09,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:43:09,427 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-04-15 03:43:09,452 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:43:09,487 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:43:09,487 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 [2021-04-15 03:43:09,506 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-04-15 03:43:09,507 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:43:09,508 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:43:09,508 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:158, output treesize:3 [2021-04-15 03:43:09,517 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:43:09,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:43:09,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 17 [2021-04-15 03:43:09,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714048316] [2021-04-15 03:43:09,518 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-04-15 03:43:09,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:43:09,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-04-15 03:43:09,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-04-15 03:43:09,518 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) [2021-04-15 03:43:09,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:43:09,701 INFO L93 Difference]: Finished difference Result 9518 states and 24331 transitions. [2021-04-15 03:43:09,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-04-15 03:43:09,701 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 [2021-04-15 03:43:09,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:43:09,713 INFO L225 Difference]: With dead ends: 9518 [2021-04-15 03:43:09,714 INFO L226 Difference]: Without dead ends: 9492 [2021-04-15 03:43:09,714 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 175.4ms TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-04-15 03:43:09,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9492 states. [2021-04-15 03:43:09,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9492 to 8919. [2021-04-15 03:43:09,839 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) [2021-04-15 03:43:09,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8919 states to 8919 states and 23080 transitions. [2021-04-15 03:43:09,853 INFO L78 Accepts]: Start accepts. Automaton has 8919 states and 23080 transitions. Word has length 34 [2021-04-15 03:43:09,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:43:09,853 INFO L480 AbstractCegarLoop]: Abstraction has 8919 states and 23080 transitions. [2021-04-15 03:43:09,853 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) [2021-04-15 03:43:09,853 INFO L276 IsEmpty]: Start isEmpty. Operand 8919 states and 23080 transitions. [2021-04-15 03:43:09,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-04-15 03:43:09,859 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:43:09,859 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:43:10,059 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable635,76 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:43:10,059 INFO L428 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:43:10,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:43:10,060 INFO L82 PathProgramCache]: Analyzing trace with hash -766224908, now seen corresponding path program 76 times [2021-04-15 03:43:10,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:43:10,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150046749] [2021-04-15 03:43:10,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:43:10,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:10,099 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:43:10,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150046749] [2021-04-15 03:43:10,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486242397] [2021-04-15 03:43:10,100 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 [2021-04-15 03:43:10,135 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 03:43:10,135 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:43:10,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 33 conjunts are in the unsatisfiable core [2021-04-15 03:43:10,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:43:10,254 INFO L354 Elim1Store]: treesize reduction 32, result has 60.5 percent of original size [2021-04-15 03:43:10,254 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 [2021-04-15 03:43:10,256 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:43:10,280 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:43:10,281 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:43:10,281 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:89, output treesize:162 [2021-04-15 03:43:10,406 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-04-15 03:43:10,814 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 38 [2021-04-15 03:43:11,222 INFO L354 Elim1Store]: treesize reduction 78, result has 3.7 percent of original size [2021-04-15 03:43:11,222 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 [2021-04-15 03:43:11,223 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:43:11,300 INFO L628 ElimStorePlain]: treesize reduction 171, result has 56.8 percent of original size [2021-04-15 03:43:11,328 INFO L354 Elim1Store]: treesize reduction 66, result has 18.5 percent of original size [2021-04-15 03:43:11,328 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 [2021-04-15 03:43:11,330 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-04-15 03:43:11,358 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:43:11,380 INFO L354 Elim1Store]: treesize reduction 71, result has 12.3 percent of original size [2021-04-15 03:43:11,381 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 [2021-04-15 03:43:11,382 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-04-15 03:43:11,408 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:43:11,456 INFO L354 Elim1Store]: treesize reduction 40, result has 50.6 percent of original size [2021-04-15 03:43:11,456 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 [2021-04-15 03:43:11,459 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-04-15 03:43:11,467 INFO L628 ElimStorePlain]: treesize reduction 78, result has 3.7 percent of original size [2021-04-15 03:43:11,467 INFO L518 ElimStorePlain]: Eliminatee v_prenex_66 vanished before elimination [2021-04-15 03:43:11,467 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:43:11,467 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 10 variables, input treesize:486, output treesize:3 [2021-04-15 03:43:11,477 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:43:11,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:43:11,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 17 [2021-04-15 03:43:11,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259620662] [2021-04-15 03:43:11,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-04-15 03:43:11,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:43:11,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-04-15 03:43:11,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-04-15 03:43:11,478 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) [2021-04-15 03:43:11,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:43:11,802 INFO L93 Difference]: Finished difference Result 9867 states and 25209 transitions. [2021-04-15 03:43:11,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-04-15 03:43:11,802 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 [2021-04-15 03:43:11,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:43:11,813 INFO L225 Difference]: With dead ends: 9867 [2021-04-15 03:43:11,813 INFO L226 Difference]: Without dead ends: 9860 [2021-04-15 03:43:11,814 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 604.7ms TimeCoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-04-15 03:43:11,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9860 states. [2021-04-15 03:43:11,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9860 to 9257. [2021-04-15 03:43:11,942 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) [2021-04-15 03:43:11,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9257 states to 9257 states and 24025 transitions. [2021-04-15 03:43:11,957 INFO L78 Accepts]: Start accepts. Automaton has 9257 states and 24025 transitions. Word has length 34 [2021-04-15 03:43:11,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:43:11,957 INFO L480 AbstractCegarLoop]: Abstraction has 9257 states and 24025 transitions. [2021-04-15 03:43:11,957 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) [2021-04-15 03:43:11,957 INFO L276 IsEmpty]: Start isEmpty. Operand 9257 states and 24025 transitions. [2021-04-15 03:43:11,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-15 03:43:11,964 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:43:11,964 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:43:12,165 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable696 [2021-04-15 03:43:12,165 INFO L428 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:43:12,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:43:12,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1975981686, now seen corresponding path program 77 times [2021-04-15 03:43:12,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:43:12,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433434130] [2021-04-15 03:43:12,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:43:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:12,321 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 25 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:12,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433434130] [2021-04-15 03:43:12,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468494674] [2021-04-15 03:43:12,322 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 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 [2021-04-15 03:43:12,412 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-04-15 03:43:12,412 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:43:12,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-04-15 03:43:12,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:43:12,681 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 25 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:12,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:43:12,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 29 [2021-04-15 03:43:12,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152829493] [2021-04-15 03:43:12,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-04-15 03:43:12,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:43:12,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-04-15 03:43:12,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=700, Unknown=0, NotChecked=0, Total=870 [2021-04-15 03:43:12,682 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) [2021-04-15 03:43:14,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:43:14,313 INFO L93 Difference]: Finished difference Result 10763 states and 27124 transitions. [2021-04-15 03:43:14,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-04-15 03:43:14,314 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 [2021-04-15 03:43:14,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:43:14,327 INFO L225 Difference]: With dead ends: 10763 [2021-04-15 03:43:14,327 INFO L226 Difference]: Without dead ends: 10763 [2021-04-15 03:43:14,328 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2236 ImplicationChecksByTransitivity, 1426.7ms TimeCoverageRelationStatistics Valid=2085, Invalid=5925, Unknown=0, NotChecked=0, Total=8010 [2021-04-15 03:43:14,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10763 states. [2021-04-15 03:43:14,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 8556. [2021-04-15 03:43:14,482 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) [2021-04-15 03:43:14,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8556 states to 8556 states and 22130 transitions. [2021-04-15 03:43:14,497 INFO L78 Accepts]: Start accepts. Automaton has 8556 states and 22130 transitions. Word has length 36 [2021-04-15 03:43:14,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:43:14,497 INFO L480 AbstractCegarLoop]: Abstraction has 8556 states and 22130 transitions. [2021-04-15 03:43:14,497 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) [2021-04-15 03:43:14,497 INFO L276 IsEmpty]: Start isEmpty. Operand 8556 states and 22130 transitions. [2021-04-15 03:43:14,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-15 03:43:14,504 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:43:14,504 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:43:14,708 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable736 [2021-04-15 03:43:14,709 INFO L428 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:43:14,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:43:14,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1533628238, now seen corresponding path program 78 times [2021-04-15 03:43:14,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:43:14,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211208785] [2021-04-15 03:43:14,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:43:14,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:14,837 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:14,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211208785] [2021-04-15 03:43:14,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704325929] [2021-04-15 03:43:14,837 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 [2021-04-15 03:43:14,861 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-04-15 03:43:14,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:43:14,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-04-15 03:43:14,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:43:15,204 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:15,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:43:15,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2021-04-15 03:43:15,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673019716] [2021-04-15 03:43:15,205 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-04-15 03:43:15,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:43:15,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-04-15 03:43:15,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=670, Unknown=0, NotChecked=0, Total=812 [2021-04-15 03:43:15,205 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) [2021-04-15 03:43:17,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:43:17,676 INFO L93 Difference]: Finished difference Result 12764 states and 31601 transitions. [2021-04-15 03:43:17,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2021-04-15 03:43:17,676 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 [2021-04-15 03:43:17,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:43:17,691 INFO L225 Difference]: With dead ends: 12764 [2021-04-15 03:43:17,691 INFO L226 Difference]: Without dead ends: 12621 [2021-04-15 03:43:17,692 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4553 ImplicationChecksByTransitivity, 2392.9ms TimeCoverageRelationStatistics Valid=2979, Invalid=10827, Unknown=0, NotChecked=0, Total=13806 [2021-04-15 03:43:17,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12621 states. [2021-04-15 03:43:17,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12621 to 8919. [2021-04-15 03:43:17,831 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) [2021-04-15 03:43:17,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8919 states to 8919 states and 23058 transitions. [2021-04-15 03:43:17,845 INFO L78 Accepts]: Start accepts. Automaton has 8919 states and 23058 transitions. Word has length 36 [2021-04-15 03:43:17,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:43:17,846 INFO L480 AbstractCegarLoop]: Abstraction has 8919 states and 23058 transitions. [2021-04-15 03:43:17,846 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) [2021-04-15 03:43:17,846 INFO L276 IsEmpty]: Start isEmpty. Operand 8919 states and 23058 transitions. [2021-04-15 03:43:17,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-15 03:43:17,852 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:43:17,853 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:43:18,053 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable737,79 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:43:18,053 INFO L428 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:43:18,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:43:18,053 INFO L82 PathProgramCache]: Analyzing trace with hash 800183698, now seen corresponding path program 79 times [2021-04-15 03:43:18,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:43:18,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165985653] [2021-04-15 03:43:18,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:43:18,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:18,125 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:18,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165985653] [2021-04-15 03:43:18,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669276602] [2021-04-15 03:43:18,126 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 [2021-04-15 03:43:18,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:18,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-04-15 03:43:18,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:43:18,411 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:18,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:43:18,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 15] total 23 [2021-04-15 03:43:18,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736899519] [2021-04-15 03:43:18,411 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-04-15 03:43:18,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:43:18,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-04-15 03:43:18,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=455, Unknown=0, NotChecked=0, Total=552 [2021-04-15 03:43:18,412 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) [2021-04-15 03:43:20,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:43:20,384 INFO L93 Difference]: Finished difference Result 16283 states and 41247 transitions. [2021-04-15 03:43:20,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-04-15 03:43:20,384 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 [2021-04-15 03:43:20,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:43:20,408 INFO L225 Difference]: With dead ends: 16283 [2021-04-15 03:43:20,408 INFO L226 Difference]: Without dead ends: 16267 [2021-04-15 03:43:20,409 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3729 ImplicationChecksByTransitivity, 1739.7ms TimeCoverageRelationStatistics Valid=2811, Invalid=7695, Unknown=0, NotChecked=0, Total=10506 [2021-04-15 03:43:20,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16267 states. [2021-04-15 03:43:20,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16267 to 11626. [2021-04-15 03:43:20,610 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) [2021-04-15 03:43:20,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11626 states to 11626 states and 30046 transitions. [2021-04-15 03:43:20,630 INFO L78 Accepts]: Start accepts. Automaton has 11626 states and 30046 transitions. Word has length 36 [2021-04-15 03:43:20,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:43:20,630 INFO L480 AbstractCegarLoop]: Abstraction has 11626 states and 30046 transitions. [2021-04-15 03:43:20,630 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) [2021-04-15 03:43:20,630 INFO L276 IsEmpty]: Start isEmpty. Operand 11626 states and 30046 transitions. [2021-04-15 03:43:20,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-15 03:43:20,638 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:43:20,638 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:43:20,838 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable738,80 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:43:20,839 INFO L428 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:43:20,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:43:20,839 INFO L82 PathProgramCache]: Analyzing trace with hash -583714384, now seen corresponding path program 80 times [2021-04-15 03:43:20,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:43:20,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687517089] [2021-04-15 03:43:20,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:43:20,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:20,911 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 31 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:20,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687517089] [2021-04-15 03:43:20,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735794985] [2021-04-15 03:43:20,912 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 [2021-04-15 03:43:20,933 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 03:43:20,934 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:43:20,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-04-15 03:43:20,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:43:21,184 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 31 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:21,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:43:21,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 15] total 23 [2021-04-15 03:43:21,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503633526] [2021-04-15 03:43:21,185 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-04-15 03:43:21,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:43:21,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-04-15 03:43:21,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2021-04-15 03:43:21,185 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) [2021-04-15 03:43:22,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:43:22,666 INFO L93 Difference]: Finished difference Result 12191 states and 31159 transitions. [2021-04-15 03:43:22,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-04-15 03:43:22,667 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 [2021-04-15 03:43:22,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:43:22,681 INFO L225 Difference]: With dead ends: 12191 [2021-04-15 03:43:22,681 INFO L226 Difference]: Without dead ends: 12187 [2021-04-15 03:43:22,682 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2261 ImplicationChecksByTransitivity, 1353.9ms TimeCoverageRelationStatistics Valid=1724, Invalid=5416, Unknown=0, NotChecked=0, Total=7140 [2021-04-15 03:43:22,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12187 states. [2021-04-15 03:43:22,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12187 to 11626. [2021-04-15 03:43:22,816 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) [2021-04-15 03:43:22,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11626 states to 11626 states and 30038 transitions. [2021-04-15 03:43:22,835 INFO L78 Accepts]: Start accepts. Automaton has 11626 states and 30038 transitions. Word has length 36 [2021-04-15 03:43:22,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:43:22,835 INFO L480 AbstractCegarLoop]: Abstraction has 11626 states and 30038 transitions. [2021-04-15 03:43:22,836 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) [2021-04-15 03:43:22,836 INFO L276 IsEmpty]: Start isEmpty. Operand 11626 states and 30038 transitions. [2021-04-15 03:43:22,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-15 03:43:22,843 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:43:22,843 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:43:23,044 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable739,81 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:43:23,044 INFO L428 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:43:23,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:43:23,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1643832242, now seen corresponding path program 81 times [2021-04-15 03:43:23,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:43:23,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75851330] [2021-04-15 03:43:23,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:43:23,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:23,110 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 39 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:43:23,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75851330] [2021-04-15 03:43:23,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059412604] [2021-04-15 03:43:23,110 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 [2021-04-15 03:43:23,134 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-04-15 03:43:23,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:43:23,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-04-15 03:43:23,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:43:23,376 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 31 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:23,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:43:23,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 15] total 23 [2021-04-15 03:43:23,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120321856] [2021-04-15 03:43:23,377 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-04-15 03:43:23,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:43:23,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-04-15 03:43:23,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=455, Unknown=0, NotChecked=0, Total=552 [2021-04-15 03:43:23,377 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) [2021-04-15 03:43:24,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:43:24,572 INFO L93 Difference]: Finished difference Result 15216 states and 38818 transitions. [2021-04-15 03:43:24,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-04-15 03:43:24,573 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 [2021-04-15 03:43:24,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:43:24,594 INFO L225 Difference]: With dead ends: 15216 [2021-04-15 03:43:24,595 INFO L226 Difference]: Without dead ends: 15195 [2021-04-15 03:43:24,595 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1417 ImplicationChecksByTransitivity, 974.6ms TimeCoverageRelationStatistics Valid=1176, Invalid=3654, Unknown=0, NotChecked=0, Total=4830 [2021-04-15 03:43:24,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15195 states. [2021-04-15 03:43:24,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15195 to 11850. [2021-04-15 03:43:24,826 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) [2021-04-15 03:43:24,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11850 states to 11850 states and 30730 transitions. [2021-04-15 03:43:24,847 INFO L78 Accepts]: Start accepts. Automaton has 11850 states and 30730 transitions. Word has length 36 [2021-04-15 03:43:24,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:43:24,847 INFO L480 AbstractCegarLoop]: Abstraction has 11850 states and 30730 transitions. [2021-04-15 03:43:24,847 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) [2021-04-15 03:43:24,848 INFO L276 IsEmpty]: Start isEmpty. Operand 11850 states and 30730 transitions. [2021-04-15 03:43:24,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-15 03:43:24,855 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:43:24,855 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:43:25,056 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable740 [2021-04-15 03:43:25,056 INFO L428 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:43:25,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:43:25,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1511339966, now seen corresponding path program 82 times [2021-04-15 03:43:25,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:43:25,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904804726] [2021-04-15 03:43:25,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:43:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:25,145 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 27 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:25,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904804726] [2021-04-15 03:43:25,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220749165] [2021-04-15 03:43:25,146 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 [2021-04-15 03:43:25,169 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 03:43:25,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:43:25,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-04-15 03:43:25,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:43:25,439 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 27 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:25,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:43:25,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15] total 24 [2021-04-15 03:43:25,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231172295] [2021-04-15 03:43:25,440 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-04-15 03:43:25,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:43:25,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-04-15 03:43:25,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=475, Unknown=0, NotChecked=0, Total=600 [2021-04-15 03:43:25,441 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) [2021-04-15 03:43:27,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:43:27,047 INFO L93 Difference]: Finished difference Result 13259 states and 33760 transitions. [2021-04-15 03:43:27,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-04-15 03:43:27,047 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 [2021-04-15 03:43:27,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:43:27,064 INFO L225 Difference]: With dead ends: 13259 [2021-04-15 03:43:27,065 INFO L226 Difference]: Without dead ends: 13241 [2021-04-15 03:43:27,066 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2419 ImplicationChecksByTransitivity, 1397.1ms TimeCoverageRelationStatistics Valid=1777, Invalid=5705, Unknown=0, NotChecked=0, Total=7482 [2021-04-15 03:43:27,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13241 states. [2021-04-15 03:43:27,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13241 to 12104. [2021-04-15 03:43:27,218 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) [2021-04-15 03:43:27,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12104 states to 12104 states and 31415 transitions. [2021-04-15 03:43:27,240 INFO L78 Accepts]: Start accepts. Automaton has 12104 states and 31415 transitions. Word has length 36 [2021-04-15 03:43:27,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:43:27,241 INFO L480 AbstractCegarLoop]: Abstraction has 12104 states and 31415 transitions. [2021-04-15 03:43:27,241 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) [2021-04-15 03:43:27,241 INFO L276 IsEmpty]: Start isEmpty. Operand 12104 states and 31415 transitions. [2021-04-15 03:43:27,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-15 03:43:27,249 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:43:27,249 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:43:27,449 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable741 [2021-04-15 03:43:27,449 INFO L428 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:43:27,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:43:27,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1219841470, now seen corresponding path program 83 times [2021-04-15 03:43:27,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:43:27,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087858326] [2021-04-15 03:43:27,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:43:27,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:27,529 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 22 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:27,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087858326] [2021-04-15 03:43:27,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001924676] [2021-04-15 03:43:27,529 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 [2021-04-15 03:43:27,556 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-04-15 03:43:27,556 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:43:27,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-04-15 03:43:27,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:43:27,866 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 22 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:27,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:43:27,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 25 [2021-04-15 03:43:27,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338170507] [2021-04-15 03:43:27,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 03:43:27,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:43:27,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 03:43:27,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=524, Unknown=0, NotChecked=0, Total=650 [2021-04-15 03:43:27,867 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) [2021-04-15 03:43:29,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:43:29,418 INFO L93 Difference]: Finished difference Result 13923 states and 35275 transitions. [2021-04-15 03:43:29,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-04-15 03:43:29,419 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 [2021-04-15 03:43:29,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:43:29,437 INFO L225 Difference]: With dead ends: 13923 [2021-04-15 03:43:29,437 INFO L226 Difference]: Without dead ends: 13889 [2021-04-15 03:43:29,438 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2629 ImplicationChecksByTransitivity, 1337.8ms TimeCoverageRelationStatistics Valid=1841, Invalid=5991, Unknown=0, NotChecked=0, Total=7832 [2021-04-15 03:43:29,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13889 states. [2021-04-15 03:43:29,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13889 to 11939. [2021-04-15 03:43:29,590 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) [2021-04-15 03:43:29,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11939 states to 11939 states and 31019 transitions. [2021-04-15 03:43:29,609 INFO L78 Accepts]: Start accepts. Automaton has 11939 states and 31019 transitions. Word has length 36 [2021-04-15 03:43:29,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:43:29,609 INFO L480 AbstractCegarLoop]: Abstraction has 11939 states and 31019 transitions. [2021-04-15 03:43:29,609 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) [2021-04-15 03:43:29,609 INFO L276 IsEmpty]: Start isEmpty. Operand 11939 states and 31019 transitions. [2021-04-15 03:43:29,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-15 03:43:29,616 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:43:29,617 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:43:29,817 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable742,84 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:43:29,817 INFO L428 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:43:29,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:43:29,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1660183610, now seen corresponding path program 84 times [2021-04-15 03:43:29,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:43:29,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161221995] [2021-04-15 03:43:29,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:43:29,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:29,906 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 21 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:29,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161221995] [2021-04-15 03:43:29,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63124679] [2021-04-15 03:43:29,906 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 [2021-04-15 03:43:29,932 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2021-04-15 03:43:29,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:43:29,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-04-15 03:43:29,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:43:30,194 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 21 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:30,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:43:30,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 26 [2021-04-15 03:43:30,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096975616] [2021-04-15 03:43:30,194 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-04-15 03:43:30,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:43:30,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-04-15 03:43:30,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=571, Unknown=0, NotChecked=0, Total=702 [2021-04-15 03:43:30,195 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) [2021-04-15 03:43:31,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:43:31,826 INFO L93 Difference]: Finished difference Result 14229 states and 35822 transitions. [2021-04-15 03:43:31,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-04-15 03:43:31,827 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 [2021-04-15 03:43:31,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:43:31,845 INFO L225 Difference]: With dead ends: 14229 [2021-04-15 03:43:31,845 INFO L226 Difference]: Without dead ends: 14185 [2021-04-15 03:43:31,846 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2812 ImplicationChecksByTransitivity, 1381.4ms TimeCoverageRelationStatistics Valid=1915, Invalid=6275, Unknown=0, NotChecked=0, Total=8190 [2021-04-15 03:43:31,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14185 states. [2021-04-15 03:43:31,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14185 to 11149. [2021-04-15 03:43:32,001 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) [2021-04-15 03:43:32,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11149 states to 11149 states and 28998 transitions. [2021-04-15 03:43:32,020 INFO L78 Accepts]: Start accepts. Automaton has 11149 states and 28998 transitions. Word has length 36 [2021-04-15 03:43:32,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:43:32,020 INFO L480 AbstractCegarLoop]: Abstraction has 11149 states and 28998 transitions. [2021-04-15 03:43:32,020 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) [2021-04-15 03:43:32,020 INFO L276 IsEmpty]: Start isEmpty. Operand 11149 states and 28998 transitions. [2021-04-15 03:43:32,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-15 03:43:32,028 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:43:32,028 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:43:32,228 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable743 [2021-04-15 03:43:32,228 INFO L428 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:43:32,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:43:32,229 INFO L82 PathProgramCache]: Analyzing trace with hash -372782154, now seen corresponding path program 85 times [2021-04-15 03:43:32,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:43:32,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214101450] [2021-04-15 03:43:32,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:43:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:32,357 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 24 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:32,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214101450] [2021-04-15 03:43:32,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367437534] [2021-04-15 03:43:32,357 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 [2021-04-15 03:43:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:32,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-04-15 03:43:32,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:43:32,674 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 24 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:32,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:43:32,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2021-04-15 03:43:32,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231922058] [2021-04-15 03:43:32,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 03:43:32,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:43:32,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 03:43:32,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=616, Unknown=0, NotChecked=0, Total=756 [2021-04-15 03:43:32,675 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) [2021-04-15 03:43:34,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:43:34,262 INFO L93 Difference]: Finished difference Result 13990 states and 34960 transitions. [2021-04-15 03:43:34,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-04-15 03:43:34,262 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 [2021-04-15 03:43:34,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:43:34,279 INFO L225 Difference]: With dead ends: 13990 [2021-04-15 03:43:34,279 INFO L226 Difference]: Without dead ends: 13948 [2021-04-15 03:43:34,280 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2949 ImplicationChecksByTransitivity, 1497.3ms TimeCoverageRelationStatistics Valid=1998, Invalid=6558, Unknown=0, NotChecked=0, Total=8556 [2021-04-15 03:43:34,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13948 states. [2021-04-15 03:43:34,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13948 to 9962. [2021-04-15 03:43:34,433 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) [2021-04-15 03:43:34,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9962 states to 9962 states and 25876 transitions. [2021-04-15 03:43:34,449 INFO L78 Accepts]: Start accepts. Automaton has 9962 states and 25876 transitions. Word has length 36 [2021-04-15 03:43:34,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:43:34,449 INFO L480 AbstractCegarLoop]: Abstraction has 9962 states and 25876 transitions. [2021-04-15 03:43:34,449 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) [2021-04-15 03:43:34,449 INFO L276 IsEmpty]: Start isEmpty. Operand 9962 states and 25876 transitions. [2021-04-15 03:43:34,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-15 03:43:34,455 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:43:34,455 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:43:34,655 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable744,86 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:43:34,656 INFO L428 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:43:34,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:43:34,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1742466442, now seen corresponding path program 86 times [2021-04-15 03:43:34,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:43:34,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056573975] [2021-04-15 03:43:34,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:43:34,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:34,771 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 24 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:43:34,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056573975] [2021-04-15 03:43:34,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250824015] [2021-04-15 03:43:34,771 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) Waiting until toolchain timeout for monitored process 87 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:43:34,792 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 03:43:34,793 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:43:34,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-04-15 03:43:34,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:43:35,077 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 20 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:35,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:43:35,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2021-04-15 03:43:35,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857010419] [2021-04-15 03:43:35,078 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-04-15 03:43:35,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:43:35,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-04-15 03:43:35,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=665, Unknown=0, NotChecked=0, Total=812 [2021-04-15 03:43:35,078 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) [2021-04-15 03:43:36,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:43:36,736 INFO L93 Difference]: Finished difference Result 12322 states and 30673 transitions. [2021-04-15 03:43:36,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-04-15 03:43:36,737 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 [2021-04-15 03:43:36,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:43:36,754 INFO L225 Difference]: With dead ends: 12322 [2021-04-15 03:43:36,754 INFO L226 Difference]: Without dead ends: 12322 [2021-04-15 03:43:36,755 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2304 ImplicationChecksByTransitivity, 1458.3ms TimeCoverageRelationStatistics Valid=1981, Invalid=6029, Unknown=0, NotChecked=0, Total=8010 [2021-04-15 03:43:36,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12322 states. [2021-04-15 03:43:36,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12322 to 8944. [2021-04-15 03:43:36,914 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) [2021-04-15 03:43:36,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8944 states to 8944 states and 23159 transitions. [2021-04-15 03:43:36,929 INFO L78 Accepts]: Start accepts. Automaton has 8944 states and 23159 transitions. Word has length 36 [2021-04-15 03:43:36,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:43:36,929 INFO L480 AbstractCegarLoop]: Abstraction has 8944 states and 23159 transitions. [2021-04-15 03:43:36,929 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) [2021-04-15 03:43:36,929 INFO L276 IsEmpty]: Start isEmpty. Operand 8944 states and 23159 transitions. [2021-04-15 03:43:36,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-15 03:43:36,935 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:43:36,935 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:43:37,135 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable745 [2021-04-15 03:43:37,136 INFO L428 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:43:37,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:43:37,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1833765810, now seen corresponding path program 87 times [2021-04-15 03:43:37,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:43:37,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897686212] [2021-04-15 03:43:37,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:43:37,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:37,249 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 27 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:43:37,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897686212] [2021-04-15 03:43:37,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138722366] [2021-04-15 03:43:37,250 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 [2021-04-15 03:43:37,279 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-04-15 03:43:37,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:43:37,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-04-15 03:43:37,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:43:37,630 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 27 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:37,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:43:37,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2021-04-15 03:43:37,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147018744] [2021-04-15 03:43:37,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 03:43:37,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:43:37,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 03:43:37,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=626, Unknown=0, NotChecked=0, Total=756 [2021-04-15 03:43:37,631 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) [2021-04-15 03:43:39,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:43:39,470 INFO L93 Difference]: Finished difference Result 10626 states and 26434 transitions. [2021-04-15 03:43:39,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-04-15 03:43:39,471 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 [2021-04-15 03:43:39,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:43:39,483 INFO L225 Difference]: With dead ends: 10626 [2021-04-15 03:43:39,483 INFO L226 Difference]: Without dead ends: 10527 [2021-04-15 03:43:39,485 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3285 ImplicationChecksByTransitivity, 1723.8ms TimeCoverageRelationStatistics Valid=2020, Invalid=7486, Unknown=0, NotChecked=0, Total=9506 [2021-04-15 03:43:39,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10527 states. [2021-04-15 03:43:39,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10527 to 8656. [2021-04-15 03:43:39,602 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) [2021-04-15 03:43:39,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8656 states to 8656 states and 22304 transitions. [2021-04-15 03:43:39,615 INFO L78 Accepts]: Start accepts. Automaton has 8656 states and 22304 transitions. Word has length 36 [2021-04-15 03:43:39,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:43:39,615 INFO L480 AbstractCegarLoop]: Abstraction has 8656 states and 22304 transitions. [2021-04-15 03:43:39,615 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) [2021-04-15 03:43:39,615 INFO L276 IsEmpty]: Start isEmpty. Operand 8656 states and 22304 transitions. [2021-04-15 03:43:39,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-15 03:43:39,620 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:43:39,620 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:43:39,820 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable746,88 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:43:39,821 INFO L428 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:43:39,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:43:39,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1703939702, now seen corresponding path program 88 times [2021-04-15 03:43:39,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:43:39,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551090731] [2021-04-15 03:43:39,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:43:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:39,951 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 23 proven. 37 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:43:39,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551090731] [2021-04-15 03:43:39,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043841007] [2021-04-15 03:43:39,951 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 [2021-04-15 03:43:39,972 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 03:43:39,973 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:43:39,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-04-15 03:43:39,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:43:40,236 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 20 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:40,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:43:40,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2021-04-15 03:43:40,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080373068] [2021-04-15 03:43:40,236 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 03:43:40,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:43:40,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 03:43:40,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=624, Unknown=0, NotChecked=0, Total=756 [2021-04-15 03:43:40,237 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) [2021-04-15 03:43:42,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:43:42,057 INFO L93 Difference]: Finished difference Result 11669 states and 28734 transitions. [2021-04-15 03:43:42,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-04-15 03:43:42,058 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 [2021-04-15 03:43:42,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:43:42,073 INFO L225 Difference]: With dead ends: 11669 [2021-04-15 03:43:42,073 INFO L226 Difference]: Without dead ends: 11669 [2021-04-15 03:43:42,075 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2824 ImplicationChecksByTransitivity, 1612.8ms TimeCoverageRelationStatistics Valid=2270, Invalid=6660, Unknown=0, NotChecked=0, Total=8930 [2021-04-15 03:43:42,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11669 states. [2021-04-15 03:43:42,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11669 to 7769. [2021-04-15 03:43:42,178 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) [2021-04-15 03:43:42,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7769 states to 7769 states and 19892 transitions. [2021-04-15 03:43:42,191 INFO L78 Accepts]: Start accepts. Automaton has 7769 states and 19892 transitions. Word has length 36 [2021-04-15 03:43:42,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:43:42,191 INFO L480 AbstractCegarLoop]: Abstraction has 7769 states and 19892 transitions. [2021-04-15 03:43:42,191 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) [2021-04-15 03:43:42,191 INFO L276 IsEmpty]: Start isEmpty. Operand 7769 states and 19892 transitions. [2021-04-15 03:43:42,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-15 03:43:42,197 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:43:42,197 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:43:42,397 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable747,89 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:43:42,397 INFO L428 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:43:42,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:43:42,398 INFO L82 PathProgramCache]: Analyzing trace with hash 366880434, now seen corresponding path program 89 times [2021-04-15 03:43:42,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:43:42,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399080816] [2021-04-15 03:43:42,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:43:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:42,488 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 23 proven. 37 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:43:42,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399080816] [2021-04-15 03:43:42,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116608736] [2021-04-15 03:43:42,489 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 [2021-04-15 03:43:42,511 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-04-15 03:43:42,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:43:42,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-04-15 03:43:42,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:43:42,776 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 22 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:42,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:43:42,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 26 [2021-04-15 03:43:42,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614923680] [2021-04-15 03:43:42,777 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-04-15 03:43:42,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:43:42,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-04-15 03:43:42,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=580, Unknown=0, NotChecked=0, Total=702 [2021-04-15 03:43:42,777 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) [2021-04-15 03:43:44,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:43:44,432 INFO L93 Difference]: Finished difference Result 9358 states and 23204 transitions. [2021-04-15 03:43:44,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-04-15 03:43:44,433 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 [2021-04-15 03:43:44,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:43:44,444 INFO L225 Difference]: With dead ends: 9358 [2021-04-15 03:43:44,444 INFO L226 Difference]: Without dead ends: 9292 [2021-04-15 03:43:44,445 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2837 ImplicationChecksByTransitivity, 1456.3ms TimeCoverageRelationStatistics Valid=1697, Invalid=6313, Unknown=0, NotChecked=0, Total=8010 [2021-04-15 03:43:44,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9292 states. [2021-04-15 03:43:44,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9292 to 7746. [2021-04-15 03:43:44,557 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) [2021-04-15 03:43:44,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7746 states to 7746 states and 19778 transitions. [2021-04-15 03:43:44,571 INFO L78 Accepts]: Start accepts. Automaton has 7746 states and 19778 transitions. Word has length 36 [2021-04-15 03:43:44,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:43:44,571 INFO L480 AbstractCegarLoop]: Abstraction has 7746 states and 19778 transitions. [2021-04-15 03:43:44,571 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) [2021-04-15 03:43:44,572 INFO L276 IsEmpty]: Start isEmpty. Operand 7746 states and 19778 transitions. [2021-04-15 03:43:44,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-15 03:43:44,578 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:43:44,578 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:43:44,784 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable748,90 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:43:44,785 INFO L428 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:43:44,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:43:44,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1439369846, now seen corresponding path program 90 times [2021-04-15 03:43:44,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:43:44,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940902461] [2021-04-15 03:43:44,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:43:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:44,879 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 22 proven. 38 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:43:44,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940902461] [2021-04-15 03:43:44,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015591213] [2021-04-15 03:43:44,880 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 [2021-04-15 03:43:44,904 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-04-15 03:43:44,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:43:44,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-04-15 03:43:44,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:43:45,170 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 20 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:45,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:43:45,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 26 [2021-04-15 03:43:45,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259573322] [2021-04-15 03:43:45,170 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-04-15 03:43:45,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:43:45,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-04-15 03:43:45,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=581, Unknown=0, NotChecked=0, Total=702 [2021-04-15 03:43:45,171 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) [2021-04-15 03:43:47,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:43:47,314 INFO L93 Difference]: Finished difference Result 11275 states and 27529 transitions. [2021-04-15 03:43:47,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-04-15 03:43:47,314 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 [2021-04-15 03:43:47,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:43:47,326 INFO L225 Difference]: With dead ends: 11275 [2021-04-15 03:43:47,326 INFO L226 Difference]: Without dead ends: 11275 [2021-04-15 03:43:47,327 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3564 ImplicationChecksByTransitivity, 1816.2ms TimeCoverageRelationStatistics Valid=2740, Invalid=7562, Unknown=0, NotChecked=0, Total=10302 [2021-04-15 03:43:47,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11275 states. [2021-04-15 03:43:47,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11275 to 7094. [2021-04-15 03:43:47,436 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) [2021-04-15 03:43:47,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7094 states to 7094 states and 17958 transitions. [2021-04-15 03:43:47,447 INFO L78 Accepts]: Start accepts. Automaton has 7094 states and 17958 transitions. Word has length 36 [2021-04-15 03:43:47,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:43:47,447 INFO L480 AbstractCegarLoop]: Abstraction has 7094 states and 17958 transitions. [2021-04-15 03:43:47,447 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) [2021-04-15 03:43:47,447 INFO L276 IsEmpty]: Start isEmpty. Operand 7094 states and 17958 transitions. [2021-04-15 03:43:47,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-15 03:43:47,451 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:43:47,451 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:43:47,652 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable749,91 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:43:47,652 INFO L428 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:43:47,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:43:47,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1442447794, now seen corresponding path program 91 times [2021-04-15 03:43:47,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:43:47,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411010048] [2021-04-15 03:43:47,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:43:47,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:47,737 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 23 proven. 37 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:43:47,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411010048] [2021-04-15 03:43:47,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951010234] [2021-04-15 03:43:47,737 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 [2021-04-15 03:43:47,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:47,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-04-15 03:43:47,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:43:48,020 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 21 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:48,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:43:48,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 25 [2021-04-15 03:43:48,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098546532] [2021-04-15 03:43:48,021 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 03:43:48,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:43:48,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 03:43:48,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=532, Unknown=0, NotChecked=0, Total=650 [2021-04-15 03:43:48,021 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) [2021-04-15 03:43:49,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:43:49,545 INFO L93 Difference]: Finished difference Result 8391 states and 20772 transitions. [2021-04-15 03:43:49,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-04-15 03:43:49,545 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 [2021-04-15 03:43:49,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:43:49,555 INFO L225 Difference]: With dead ends: 8391 [2021-04-15 03:43:49,555 INFO L226 Difference]: Without dead ends: 8352 [2021-04-15 03:43:49,556 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2476 ImplicationChecksByTransitivity, 1315.7ms TimeCoverageRelationStatistics Valid=1507, Invalid=5465, Unknown=0, NotChecked=0, Total=6972 [2021-04-15 03:43:49,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8352 states. [2021-04-15 03:43:49,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8352 to 7183. [2021-04-15 03:43:49,645 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) [2021-04-15 03:43:49,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7183 states to 7183 states and 18188 transitions. [2021-04-15 03:43:49,655 INFO L78 Accepts]: Start accepts. Automaton has 7183 states and 18188 transitions. Word has length 36 [2021-04-15 03:43:49,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:43:49,655 INFO L480 AbstractCegarLoop]: Abstraction has 7183 states and 18188 transitions. [2021-04-15 03:43:49,655 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) [2021-04-15 03:43:49,655 INFO L276 IsEmpty]: Start isEmpty. Operand 7183 states and 18188 transitions. [2021-04-15 03:43:49,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-15 03:43:49,659 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:43:49,660 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:43:49,860 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable750 [2021-04-15 03:43:49,860 INFO L428 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:43:49,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:43:49,860 INFO L82 PathProgramCache]: Analyzing trace with hash -795539850, now seen corresponding path program 92 times [2021-04-15 03:43:49,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:43:49,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510806487] [2021-04-15 03:43:49,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:43:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:49,975 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 21 proven. 39 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:43:49,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510806487] [2021-04-15 03:43:49,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047389618] [2021-04-15 03:43:49,976 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 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 [2021-04-15 03:43:49,998 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 03:43:49,999 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:43:49,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-04-15 03:43:50,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:43:50,265 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 20 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:50,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:43:50,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 25 [2021-04-15 03:43:50,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808748078] [2021-04-15 03:43:50,265 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 03:43:50,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:43:50,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 03:43:50,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=536, Unknown=0, NotChecked=0, Total=650 [2021-04-15 03:43:50,266 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) [2021-04-15 03:43:52,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:43:52,466 INFO L93 Difference]: Finished difference Result 11937 states and 29010 transitions. [2021-04-15 03:43:52,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-04-15 03:43:52,466 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 [2021-04-15 03:43:52,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:43:52,481 INFO L225 Difference]: With dead ends: 11937 [2021-04-15 03:43:52,481 INFO L226 Difference]: Without dead ends: 11937 [2021-04-15 03:43:52,483 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4334 ImplicationChecksByTransitivity, 1936.7ms TimeCoverageRelationStatistics Valid=3216, Invalid=8340, Unknown=0, NotChecked=0, Total=11556 [2021-04-15 03:43:52,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11937 states. [2021-04-15 03:43:52,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11937 to 8770. [2021-04-15 03:43:52,616 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) [2021-04-15 03:43:52,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8770 states to 8770 states and 21984 transitions. [2021-04-15 03:43:52,631 INFO L78 Accepts]: Start accepts. Automaton has 8770 states and 21984 transitions. Word has length 36 [2021-04-15 03:43:52,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:43:52,631 INFO L480 AbstractCegarLoop]: Abstraction has 8770 states and 21984 transitions. [2021-04-15 03:43:52,631 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) [2021-04-15 03:43:52,631 INFO L276 IsEmpty]: Start isEmpty. Operand 8770 states and 21984 transitions. [2021-04-15 03:43:52,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-15 03:43:52,637 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:43:52,637 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:43:52,837 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 93 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable751 [2021-04-15 03:43:52,838 INFO L428 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:43:52,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:43:52,838 INFO L82 PathProgramCache]: Analyzing trace with hash 290495666, now seen corresponding path program 93 times [2021-04-15 03:43:52,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:43:52,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667372003] [2021-04-15 03:43:52,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:43:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:52,933 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 27 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:43:52,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667372003] [2021-04-15 03:43:52,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793625416] [2021-04-15 03:43:52,933 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 [2021-04-15 03:43:52,972 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-04-15 03:43:52,973 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:43:52,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-04-15 03:43:52,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:43:53,260 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 24 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:53,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:43:53,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15] total 24 [2021-04-15 03:43:53,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125655154] [2021-04-15 03:43:53,261 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-04-15 03:43:53,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:43:53,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-04-15 03:43:53,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2021-04-15 03:43:53,261 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) [2021-04-15 03:43:54,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:43:54,775 INFO L93 Difference]: Finished difference Result 9544 states and 23558 transitions. [2021-04-15 03:43:54,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-04-15 03:43:54,776 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 [2021-04-15 03:43:54,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:43:54,787 INFO L225 Difference]: With dead ends: 9544 [2021-04-15 03:43:54,787 INFO L226 Difference]: Without dead ends: 9526 [2021-04-15 03:43:54,788 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2221 ImplicationChecksByTransitivity, 1324.6ms TimeCoverageRelationStatistics Valid=1407, Invalid=4913, Unknown=0, NotChecked=0, Total=6320 [2021-04-15 03:43:54,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9526 states. [2021-04-15 03:43:54,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9526 to 8902. [2021-04-15 03:43:54,899 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) [2021-04-15 03:43:54,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8902 states to 8902 states and 22342 transitions. [2021-04-15 03:43:54,914 INFO L78 Accepts]: Start accepts. Automaton has 8902 states and 22342 transitions. Word has length 36 [2021-04-15 03:43:54,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:43:54,914 INFO L480 AbstractCegarLoop]: Abstraction has 8902 states and 22342 transitions. [2021-04-15 03:43:54,915 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) [2021-04-15 03:43:54,915 INFO L276 IsEmpty]: Start isEmpty. Operand 8902 states and 22342 transitions. [2021-04-15 03:43:54,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-15 03:43:54,922 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:43:54,922 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:43:55,130 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable752 [2021-04-15 03:43:55,130 INFO L428 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:43:55,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:43:55,130 INFO L82 PathProgramCache]: Analyzing trace with hash 766378614, now seen corresponding path program 94 times [2021-04-15 03:43:55,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:43:55,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476835035] [2021-04-15 03:43:55,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:43:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:55,224 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 20 proven. 40 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:43:55,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476835035] [2021-04-15 03:43:55,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218158027] [2021-04-15 03:43:55,225 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 [2021-04-15 03:43:55,246 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 03:43:55,246 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:43:55,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-04-15 03:43:55,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:43:55,528 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 20 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:55,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:43:55,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15] total 24 [2021-04-15 03:43:55,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301461360] [2021-04-15 03:43:55,529 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-04-15 03:43:55,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:43:55,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-04-15 03:43:55,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=489, Unknown=0, NotChecked=0, Total=600 [2021-04-15 03:43:55,530 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) [2021-04-15 03:43:57,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:43:57,783 INFO L93 Difference]: Finished difference Result 15319 states and 37889 transitions. [2021-04-15 03:43:57,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-04-15 03:43:57,784 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 [2021-04-15 03:43:57,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:43:57,805 INFO L225 Difference]: With dead ends: 15319 [2021-04-15 03:43:57,805 INFO L226 Difference]: Without dead ends: 15319 [2021-04-15 03:43:57,806 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4780 ImplicationChecksByTransitivity, 1979.9ms TimeCoverageRelationStatistics Valid=3440, Invalid=8770, Unknown=0, NotChecked=0, Total=12210 [2021-04-15 03:43:57,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15319 states. [2021-04-15 03:43:57,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15319 to 13330. [2021-04-15 03:43:57,999 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) [2021-04-15 03:43:58,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13330 states to 13330 states and 33712 transitions. [2021-04-15 03:43:58,023 INFO L78 Accepts]: Start accepts. Automaton has 13330 states and 33712 transitions. Word has length 36 [2021-04-15 03:43:58,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:43:58,023 INFO L480 AbstractCegarLoop]: Abstraction has 13330 states and 33712 transitions. [2021-04-15 03:43:58,023 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) [2021-04-15 03:43:58,023 INFO L276 IsEmpty]: Start isEmpty. Operand 13330 states and 33712 transitions. [2021-04-15 03:43:58,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-15 03:43:58,031 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:43:58,031 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:43:58,231 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable753,95 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:43:58,232 INFO L428 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:43:58,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:43:58,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1179642020, now seen corresponding path program 95 times [2021-04-15 03:43:58,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:43:58,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663990944] [2021-04-15 03:43:58,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:43:58,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:43:58,333 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 31 proven. 29 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:43:58,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663990944] [2021-04-15 03:43:58,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947226265] [2021-04-15 03:43:58,333 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 [2021-04-15 03:43:58,364 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-04-15 03:43:58,364 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:43:58,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-04-15 03:43:58,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:43:58,635 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 27 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:43:58,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:43:58,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 15] total 23 [2021-04-15 03:43:58,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917116237] [2021-04-15 03:43:58,636 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-04-15 03:43:58,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:43:58,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-04-15 03:43:58,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2021-04-15 03:43:58,636 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) [2021-04-15 03:43:59,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:43:59,981 INFO L93 Difference]: Finished difference Result 14924 states and 36958 transitions. [2021-04-15 03:43:59,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-04-15 03:43:59,982 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 [2021-04-15 03:43:59,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:43:59,999 INFO L225 Difference]: With dead ends: 14924 [2021-04-15 03:43:59,999 INFO L226 Difference]: Without dead ends: 14920 [2021-04-15 03:44:00,000 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2102 ImplicationChecksByTransitivity, 1213.3ms TimeCoverageRelationStatistics Valid=1750, Invalid=4570, Unknown=0, NotChecked=0, Total=6320 [2021-04-15 03:44:00,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14920 states. [2021-04-15 03:44:00,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14920 to 13086. [2021-04-15 03:44:00,224 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) [2021-04-15 03:44:00,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13086 states to 13086 states and 33050 transitions. [2021-04-15 03:44:00,246 INFO L78 Accepts]: Start accepts. Automaton has 13086 states and 33050 transitions. Word has length 36 [2021-04-15 03:44:00,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:44:00,246 INFO L480 AbstractCegarLoop]: Abstraction has 13086 states and 33050 transitions. [2021-04-15 03:44:00,246 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) [2021-04-15 03:44:00,247 INFO L276 IsEmpty]: Start isEmpty. Operand 13086 states and 33050 transitions. [2021-04-15 03:44:00,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-15 03:44:00,253 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:44:00,253 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:44:00,454 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable754,96 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:44:00,454 INFO L428 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:44:00,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:44:00,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1685988286, now seen corresponding path program 96 times [2021-04-15 03:44:00,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:44:00,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055199347] [2021-04-15 03:44:00,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:44:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:44:00,540 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 26 proven. 34 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:44:00,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055199347] [2021-04-15 03:44:00,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669204299] [2021-04-15 03:44:00,540 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 [2021-04-15 03:44:00,563 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-04-15 03:44:00,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:44:00,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-04-15 03:44:00,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:44:00,822 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 23 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:44:00,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:44:00,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15] total 24 [2021-04-15 03:44:00,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129155248] [2021-04-15 03:44:00,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-04-15 03:44:00,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:44:00,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-04-15 03:44:00,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=491, Unknown=0, NotChecked=0, Total=600 [2021-04-15 03:44:00,823 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) [2021-04-15 03:44:02,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:44:02,155 INFO L93 Difference]: Finished difference Result 15282 states and 37884 transitions. [2021-04-15 03:44:02,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-04-15 03:44:02,159 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 [2021-04-15 03:44:02,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:44:02,178 INFO L225 Difference]: With dead ends: 15282 [2021-04-15 03:44:02,178 INFO L226 Difference]: Without dead ends: 15270 [2021-04-15 03:44:02,179 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2023 ImplicationChecksByTransitivity, 1179.3ms TimeCoverageRelationStatistics Valid=1595, Invalid=4567, Unknown=0, NotChecked=0, Total=6162 [2021-04-15 03:44:02,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15270 states. [2021-04-15 03:44:02,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15270 to 13017. [2021-04-15 03:44:02,375 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) [2021-04-15 03:44:02,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13017 states to 13017 states and 32908 transitions. [2021-04-15 03:44:02,396 INFO L78 Accepts]: Start accepts. Automaton has 13017 states and 32908 transitions. Word has length 36 [2021-04-15 03:44:02,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:44:02,396 INFO L480 AbstractCegarLoop]: Abstraction has 13017 states and 32908 transitions. [2021-04-15 03:44:02,396 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) [2021-04-15 03:44:02,396 INFO L276 IsEmpty]: Start isEmpty. Operand 13017 states and 32908 transitions. [2021-04-15 03:44:02,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-15 03:44:02,403 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:44:02,403 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:44:02,603 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable755 [2021-04-15 03:44:02,604 INFO L428 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:44:02,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:44:02,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1913209666, now seen corresponding path program 97 times [2021-04-15 03:44:02,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:44:02,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109130508] [2021-04-15 03:44:02,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:44:02,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:44:02,696 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 21 proven. 39 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:44:02,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109130508] [2021-04-15 03:44:02,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005960907] [2021-04-15 03:44:02,697 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 [2021-04-15 03:44:02,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:44:02,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-04-15 03:44:02,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:44:02,987 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 19 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:44:02,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:44:02,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 25 [2021-04-15 03:44:02,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664880199] [2021-04-15 03:44:02,988 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 03:44:02,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:44:02,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 03:44:02,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=536, Unknown=0, NotChecked=0, Total=650 [2021-04-15 03:44:02,988 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) [2021-04-15 03:44:04,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:44:04,402 INFO L93 Difference]: Finished difference Result 16039 states and 39737 transitions. [2021-04-15 03:44:04,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-04-15 03:44:04,403 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 [2021-04-15 03:44:04,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:44:04,421 INFO L225 Difference]: With dead ends: 16039 [2021-04-15 03:44:04,422 INFO L226 Difference]: Without dead ends: 16019 [2021-04-15 03:44:04,422 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2051 ImplicationChecksByTransitivity, 1256.6ms TimeCoverageRelationStatistics Valid=1551, Invalid=4769, Unknown=0, NotChecked=0, Total=6320 [2021-04-15 03:44:04,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16019 states. [2021-04-15 03:44:04,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16019 to 13397. [2021-04-15 03:44:04,628 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) [2021-04-15 03:44:04,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13397 states to 13397 states and 33927 transitions. [2021-04-15 03:44:04,650 INFO L78 Accepts]: Start accepts. Automaton has 13397 states and 33927 transitions. Word has length 36 [2021-04-15 03:44:04,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:44:04,650 INFO L480 AbstractCegarLoop]: Abstraction has 13397 states and 33927 transitions. [2021-04-15 03:44:04,650 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) [2021-04-15 03:44:04,650 INFO L276 IsEmpty]: Start isEmpty. Operand 13397 states and 33927 transitions. [2021-04-15 03:44:04,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-15 03:44:04,658 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:44:04,658 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:44:04,858 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable756 [2021-04-15 03:44:04,858 INFO L428 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:44:04,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:44:04,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1229623750, now seen corresponding path program 98 times [2021-04-15 03:44:04,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:44:04,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874175584] [2021-04-15 03:44:04,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:44:04,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:44:04,962 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 20 proven. 40 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:44:04,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874175584] [2021-04-15 03:44:04,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509086175] [2021-04-15 03:44:04,962 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 [2021-04-15 03:44:04,986 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 03:44:04,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:44:04,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-04-15 03:44:04,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:44:05,259 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 19 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:44:05,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:44:05,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 26 [2021-04-15 03:44:05,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233360416] [2021-04-15 03:44:05,260 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-04-15 03:44:05,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:44:05,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-04-15 03:44:05,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=579, Unknown=0, NotChecked=0, Total=702 [2021-04-15 03:44:05,260 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) [2021-04-15 03:44:06,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:44:06,785 INFO L93 Difference]: Finished difference Result 17468 states and 43250 transitions. [2021-04-15 03:44:06,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-04-15 03:44:06,786 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 [2021-04-15 03:44:06,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:44:06,807 INFO L225 Difference]: With dead ends: 17468 [2021-04-15 03:44:06,807 INFO L226 Difference]: Without dead ends: 17440 [2021-04-15 03:44:06,807 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2204 ImplicationChecksByTransitivity, 1350.9ms TimeCoverageRelationStatistics Valid=1619, Invalid=5187, Unknown=0, NotChecked=0, Total=6806 [2021-04-15 03:44:06,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17440 states. [2021-04-15 03:44:07,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17440 to 15583. [2021-04-15 03:44:07,039 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) [2021-04-15 03:44:07,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15583 states to 15583 states and 39517 transitions. [2021-04-15 03:44:07,065 INFO L78 Accepts]: Start accepts. Automaton has 15583 states and 39517 transitions. Word has length 36 [2021-04-15 03:44:07,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:44:07,065 INFO L480 AbstractCegarLoop]: Abstraction has 15583 states and 39517 transitions. [2021-04-15 03:44:07,065 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) [2021-04-15 03:44:07,065 INFO L276 IsEmpty]: Start isEmpty. Operand 15583 states and 39517 transitions. [2021-04-15 03:44:07,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-15 03:44:07,073 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:44:07,074 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:44:07,274 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable757,99 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:44:07,274 INFO L428 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:44:07,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:44:07,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1433554762, now seen corresponding path program 99 times [2021-04-15 03:44:07,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:44:07,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761165100] [2021-04-15 03:44:07,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:44:07,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:44:07,388 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 23 proven. 37 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:44:07,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761165100] [2021-04-15 03:44:07,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008350177] [2021-04-15 03:44:07,388 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 [2021-04-15 03:44:07,411 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-04-15 03:44:07,411 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:44:07,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-04-15 03:44:07,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:44:07,696 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 23 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:44:07,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:44:07,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2021-04-15 03:44:07,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249979911] [2021-04-15 03:44:07,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 03:44:07,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:44:07,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 03:44:07,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=620, Unknown=0, NotChecked=0, Total=756 [2021-04-15 03:44:07,697 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) [2021-04-15 03:44:09,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:44:09,318 INFO L93 Difference]: Finished difference Result 20026 states and 49571 transitions. [2021-04-15 03:44:09,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-04-15 03:44:09,319 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 [2021-04-15 03:44:09,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:44:09,342 INFO L225 Difference]: With dead ends: 20026 [2021-04-15 03:44:09,342 INFO L226 Difference]: Without dead ends: 19990 [2021-04-15 03:44:09,343 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2515 ImplicationChecksByTransitivity, 1492.3ms TimeCoverageRelationStatistics Valid=1799, Invalid=5857, Unknown=0, NotChecked=0, Total=7656 [2021-04-15 03:44:09,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19990 states. [2021-04-15 03:44:09,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19990 to 17983. [2021-04-15 03:44:09,627 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) [2021-04-15 03:44:09,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17983 states to 17983 states and 45560 transitions. [2021-04-15 03:44:09,657 INFO L78 Accepts]: Start accepts. Automaton has 17983 states and 45560 transitions. Word has length 36 [2021-04-15 03:44:09,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:44:09,657 INFO L480 AbstractCegarLoop]: Abstraction has 17983 states and 45560 transitions. [2021-04-15 03:44:09,657 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) [2021-04-15 03:44:09,657 INFO L276 IsEmpty]: Start isEmpty. Operand 17983 states and 45560 transitions. [2021-04-15 03:44:09,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-15 03:44:09,667 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:44:09,667 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:44:09,867 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable758 [2021-04-15 03:44:09,867 INFO L428 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:44:09,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:44:09,868 INFO L82 PathProgramCache]: Analyzing trace with hash 157238322, now seen corresponding path program 100 times [2021-04-15 03:44:09,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:44:09,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491272613] [2021-04-15 03:44:09,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:44:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:44:09,985 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 31 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:44:09,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491272613] [2021-04-15 03:44:09,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108372558] [2021-04-15 03:44:09,985 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 [2021-04-15 03:44:10,005 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 03:44:10,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:44:10,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-04-15 03:44:10,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:44:10,302 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 31 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:44:10,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:44:10,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2021-04-15 03:44:10,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733488720] [2021-04-15 03:44:10,303 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-04-15 03:44:10,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:44:10,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-04-15 03:44:10,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=659, Unknown=0, NotChecked=0, Total=812 [2021-04-15 03:44:10,303 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) [2021-04-15 03:44:12,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:44:12,022 INFO L93 Difference]: Finished difference Result 19957 states and 49654 transitions. [2021-04-15 03:44:12,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-04-15 03:44:12,023 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 [2021-04-15 03:44:12,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:44:12,047 INFO L225 Difference]: With dead ends: 19957 [2021-04-15 03:44:12,047 INFO L226 Difference]: Without dead ends: 19913 [2021-04-15 03:44:12,048 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3033 ImplicationChecksByTransitivity, 1593.4ms TimeCoverageRelationStatistics Valid=2089, Invalid=6841, Unknown=0, NotChecked=0, Total=8930 [2021-04-15 03:44:12,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19913 states. [2021-04-15 03:44:12,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19913 to 18106. [2021-04-15 03:44:12,304 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) [2021-04-15 03:44:12,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18106 states to 18106 states and 45968 transitions. [2021-04-15 03:44:12,334 INFO L78 Accepts]: Start accepts. Automaton has 18106 states and 45968 transitions. Word has length 36 [2021-04-15 03:44:12,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:44:12,334 INFO L480 AbstractCegarLoop]: Abstraction has 18106 states and 45968 transitions. [2021-04-15 03:44:12,334 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) [2021-04-15 03:44:12,334 INFO L276 IsEmpty]: Start isEmpty. Operand 18106 states and 45968 transitions. [2021-04-15 03:44:12,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-04-15 03:44:12,345 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:44:12,345 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:44:12,547 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable759,101 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:44:12,547 INFO L428 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:44:12,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:44:12,547 INFO L82 PathProgramCache]: Analyzing trace with hash -380198988, now seen corresponding path program 101 times [2021-04-15 03:44:12,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:44:12,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965503382] [2021-04-15 03:44:12,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:44:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:44:12,597 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:44:12,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965503382] [2021-04-15 03:44:12,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326131046] [2021-04-15 03:44:12,597 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 [2021-04-15 03:44:12,621 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-04-15 03:44:12,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:44:12,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 45 conjunts are in the unsatisfiable core [2021-04-15 03:44:12,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:44:12,934 INFO L354 Elim1Store]: treesize reduction 96, result has 43.2 percent of original size [2021-04-15 03:44:12,935 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 13 new quantified variables, introduced 21 case distinctions, treesize of input 163 treesize of output 143 [2021-04-15 03:44:13,859 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-04-15 03:44:13,904 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:44:14,320 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-04-15 03:44:14,320 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:163, output treesize:285 [2021-04-15 03:44:15,187 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-04-15 03:44:15,535 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 324 [2021-04-15 03:44:17,177 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-04-15 03:44:19,773 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 324 DAG size of output: 48 [2021-04-15 03:44:20,106 INFO L354 Elim1Store]: treesize reduction 118, result has 2.5 percent of original size [2021-04-15 03:44:20,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:44:20,108 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:44:20,243 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 84 [2021-04-15 03:44:20,243 INFO L628 ElimStorePlain]: treesize reduction 454, result has 41.9 percent of original size [2021-04-15 03:44:20,305 INFO L354 Elim1Store]: treesize reduction 81, result has 33.1 percent of original size [2021-04-15 03:44:20,305 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 56 treesize of output 68 [2021-04-15 03:44:20,307 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-04-15 03:44:20,351 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:44:20,433 INFO L354 Elim1Store]: treesize reduction 60, result has 50.4 percent of original size [2021-04-15 03:44:20,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:44:20,437 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-04-15 03:44:20,449 INFO L628 ElimStorePlain]: treesize reduction 198, result has 1.5 percent of original size [2021-04-15 03:44:20,449 INFO L518 ElimStorePlain]: Eliminatee v_prenex_80 vanished before elimination [2021-04-15 03:44:20,449 INFO L518 ElimStorePlain]: Eliminatee v_prenex_79 vanished before elimination [2021-04-15 03:44:20,449 INFO L518 ElimStorePlain]: Eliminatee v_prenex_78 vanished before elimination [2021-04-15 03:44:20,449 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:44:20,449 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 12 variables, input treesize:920, output treesize:3 [2021-04-15 03:44:20,456 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:44:20,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:44:20,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14] total 20 [2021-04-15 03:44:20,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592031995] [2021-04-15 03:44:20,457 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-04-15 03:44:20,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:44:20,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-04-15 03:44:20,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2021-04-15 03:44:20,457 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) [2021-04-15 03:44:20,964 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 163 [2021-04-15 03:44:21,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:44:21,162 INFO L93 Difference]: Finished difference Result 20298 states and 51395 transitions. [2021-04-15 03:44:21,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-04-15 03:44:21,163 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 [2021-04-15 03:44:21,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:44:21,187 INFO L225 Difference]: With dead ends: 20298 [2021-04-15 03:44:21,187 INFO L226 Difference]: Without dead ends: 20291 [2021-04-15 03:44:21,187 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 3750.0ms TimeCoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2021-04-15 03:44:21,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20291 states. [2021-04-15 03:44:21,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20291 to 19572. [2021-04-15 03:44:21,459 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) [2021-04-15 03:44:21,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19572 states to 19572 states and 49819 transitions. [2021-04-15 03:44:21,493 INFO L78 Accepts]: Start accepts. Automaton has 19572 states and 49819 transitions. Word has length 38 [2021-04-15 03:44:21,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:44:21,493 INFO L480 AbstractCegarLoop]: Abstraction has 19572 states and 49819 transitions. [2021-04-15 03:44:21,493 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) [2021-04-15 03:44:21,493 INFO L276 IsEmpty]: Start isEmpty. Operand 19572 states and 49819 transitions. [2021-04-15 03:44:21,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-04-15 03:44:21,505 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:44:21,505 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:44:21,707 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable760 [2021-04-15 03:44:21,707 INFO L428 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:44:21,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:44:21,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1616439732, now seen corresponding path program 102 times [2021-04-15 03:44:21,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:44:21,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927178188] [2021-04-15 03:44:21,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:44:21,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:44:21,767 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:44:21,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927178188] [2021-04-15 03:44:21,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872554213] [2021-04-15 03:44:21,767 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 [2021-04-15 03:44:21,792 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-04-15 03:44:21,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:44:21,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 47 conjunts are in the unsatisfiable core [2021-04-15 03:44:21,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:44:22,105 INFO L446 ElimStorePlain]: Different costs {15=[f], 55=[f_inv]} [2021-04-15 03:44:22,187 INFO L354 Elim1Store]: treesize reduction 48, result has 60.3 percent of original size [2021-04-15 03:44:22,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:44:24,525 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-04-15 03:44:24,567 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:44:24,628 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:44:24,628 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 307 treesize of output 214 [2021-04-15 03:44:24,688 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-04-15 03:44:24,689 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:44:24,690 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:44:24,690 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:201, output treesize:3 [2021-04-15 03:44:24,701 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:44:24,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:44:24,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14] total 20 [2021-04-15 03:44:24,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704919557] [2021-04-15 03:44:24,702 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-04-15 03:44:24,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:44:24,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-04-15 03:44:24,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-04-15 03:44:24,702 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) [2021-04-15 03:44:24,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:44:24,968 INFO L93 Difference]: Finished difference Result 20658 states and 52485 transitions. [2021-04-15 03:44:24,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-04-15 03:44:24,969 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 [2021-04-15 03:44:24,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:44:24,995 INFO L225 Difference]: With dead ends: 20658 [2021-04-15 03:44:24,995 INFO L226 Difference]: Without dead ends: 20649 [2021-04-15 03:44:24,995 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 287.2ms TimeCoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-04-15 03:44:25,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20649 states. [2021-04-15 03:44:25,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20649 to 20358. [2021-04-15 03:44:25,261 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) [2021-04-15 03:44:25,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20358 states to 20358 states and 51975 transitions. [2021-04-15 03:44:25,295 INFO L78 Accepts]: Start accepts. Automaton has 20358 states and 51975 transitions. Word has length 38 [2021-04-15 03:44:25,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:44:25,295 INFO L480 AbstractCegarLoop]: Abstraction has 20358 states and 51975 transitions. [2021-04-15 03:44:25,295 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) [2021-04-15 03:44:25,295 INFO L276 IsEmpty]: Start isEmpty. Operand 20358 states and 51975 transitions. [2021-04-15 03:44:25,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-04-15 03:44:25,307 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:44:25,307 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:44:25,509 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1621,103 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:44:25,509 INFO L428 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:44:25,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:44:25,509 INFO L82 PathProgramCache]: Analyzing trace with hash 945582004, now seen corresponding path program 103 times [2021-04-15 03:44:25,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:44:25,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776868949] [2021-04-15 03:44:25,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:44:25,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:44:25,554 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:44:25,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776868949] [2021-04-15 03:44:25,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181707135] [2021-04-15 03:44:25,554 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 [2021-04-15 03:44:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:44:25,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 39 conjunts are in the unsatisfiable core [2021-04-15 03:44:25,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:44:25,967 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 59 [2021-04-15 03:44:25,968 INFO L354 Elim1Store]: treesize reduction 301, result has 33.0 percent of original size [2021-04-15 03:44:25,968 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 [2021-04-15 03:44:25,972 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:44:26,015 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:44:26,017 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:44:26,017 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:158, output treesize:216 [2021-04-15 03:44:26,107 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-04-15 03:44:26,504 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 39 [2021-04-15 03:44:26,525 INFO L446 ElimStorePlain]: Different costs {3=[v_prenex_83], 6=[v_prenex_84], 10=[f], 15=[v_prenex_85]} [2021-04-15 03:44:26,540 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:44:26,540 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 [2021-04-15 03:44:26,542 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:44:26,550 INFO L628 ElimStorePlain]: treesize reduction 162, result has 1.8 percent of original size [2021-04-15 03:44:26,550 INFO L518 ElimStorePlain]: Eliminatee v_prenex_84 vanished before elimination [2021-04-15 03:44:26,550 INFO L518 ElimStorePlain]: Eliminatee f vanished before elimination [2021-04-15 03:44:26,551 INFO L518 ElimStorePlain]: Eliminatee v_prenex_85 vanished before elimination [2021-04-15 03:44:26,551 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:44:26,551 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:181, output treesize:3 [2021-04-15 03:44:26,562 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:44:26,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:44:26,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14] total 20 [2021-04-15 03:44:26,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927518570] [2021-04-15 03:44:26,563 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-04-15 03:44:26,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:44:26,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-04-15 03:44:26,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2021-04-15 03:44:26,563 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) [2021-04-15 03:44:26,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:44:26,858 INFO L93 Difference]: Finished difference Result 21714 states and 55240 transitions. [2021-04-15 03:44:26,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-04-15 03:44:26,859 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 [2021-04-15 03:44:26,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:44:26,884 INFO L225 Difference]: With dead ends: 21714 [2021-04-15 03:44:26,885 INFO L226 Difference]: Without dead ends: 21689 [2021-04-15 03:44:26,885 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 608.3ms TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2021-04-15 03:44:26,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21689 states. [2021-04-15 03:44:27,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21689 to 20898. [2021-04-15 03:44:27,168 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) [2021-04-15 03:44:27,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20898 states to 20898 states and 53495 transitions. [2021-04-15 03:44:27,202 INFO L78 Accepts]: Start accepts. Automaton has 20898 states and 53495 transitions. Word has length 38 [2021-04-15 03:44:27,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:44:27,202 INFO L480 AbstractCegarLoop]: Abstraction has 20898 states and 53495 transitions. [2021-04-15 03:44:27,202 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) [2021-04-15 03:44:27,202 INFO L276 IsEmpty]: Start isEmpty. Operand 20898 states and 53495 transitions. [2021-04-15 03:44:27,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-04-15 03:44:27,214 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:44:27,214 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:44:27,415 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2415 [2021-04-15 03:44:27,415 INFO L428 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:44:27,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:44:27,415 INFO L82 PathProgramCache]: Analyzing trace with hash 496399796, now seen corresponding path program 104 times [2021-04-15 03:44:27,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:44:27,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957438984] [2021-04-15 03:44:27,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:44:27,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:44:27,477 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:44:27,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957438984] [2021-04-15 03:44:27,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284101023] [2021-04-15 03:44:27,478 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 [2021-04-15 03:44:27,500 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 03:44:27,500 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:44:27,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 39 conjunts are in the unsatisfiable core [2021-04-15 03:44:27,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:44:27,789 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 57 [2021-04-15 03:44:27,790 INFO L354 Elim1Store]: treesize reduction 190, result has 38.5 percent of original size [2021-04-15 03:44:27,790 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 [2021-04-15 03:44:27,793 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:44:27,835 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:44:27,836 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:44:27,836 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:160, output treesize:186 [2021-04-15 03:44:27,921 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-04-15 03:44:28,145 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 42 [2021-04-15 03:44:28,236 INFO L446 ElimStorePlain]: Different costs {3=[v_prenex_86], 6=[v_prenex_88], 10=[f], 15=[v_prenex_87]} [2021-04-15 03:44:28,250 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:44:28,251 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 [2021-04-15 03:44:28,253 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:44:28,261 INFO L628 ElimStorePlain]: treesize reduction 162, result has 1.8 percent of original size [2021-04-15 03:44:28,261 INFO L518 ElimStorePlain]: Eliminatee v_prenex_88 vanished before elimination [2021-04-15 03:44:28,261 INFO L518 ElimStorePlain]: Eliminatee f vanished before elimination [2021-04-15 03:44:28,261 INFO L518 ElimStorePlain]: Eliminatee v_prenex_87 vanished before elimination [2021-04-15 03:44:28,261 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:44:28,261 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:181, output treesize:3 [2021-04-15 03:44:28,275 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:44:28,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:44:28,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14] total 20 [2021-04-15 03:44:28,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709679858] [2021-04-15 03:44:28,276 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-04-15 03:44:28,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:44:28,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-04-15 03:44:28,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2021-04-15 03:44:28,277 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) [2021-04-15 03:44:28,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:44:28,611 INFO L93 Difference]: Finished difference Result 22481 states and 57375 transitions. [2021-04-15 03:44:28,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-04-15 03:44:28,612 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 [2021-04-15 03:44:28,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:44:28,638 INFO L225 Difference]: With dead ends: 22481 [2021-04-15 03:44:28,638 INFO L226 Difference]: Without dead ends: 22452 [2021-04-15 03:44:28,638 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 470.4ms TimeCoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2021-04-15 03:44:28,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22452 states. [2021-04-15 03:44:28,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22452 to 21528. [2021-04-15 03:44:28,997 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) [2021-04-15 03:44:29,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21528 states to 21528 states and 55246 transitions. [2021-04-15 03:44:29,032 INFO L78 Accepts]: Start accepts. Automaton has 21528 states and 55246 transitions. Word has length 38 [2021-04-15 03:44:29,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:44:29,032 INFO L480 AbstractCegarLoop]: Abstraction has 21528 states and 55246 transitions. [2021-04-15 03:44:29,032 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) [2021-04-15 03:44:29,032 INFO L276 IsEmpty]: Start isEmpty. Operand 21528 states and 55246 transitions. [2021-04-15 03:44:29,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-04-15 03:44:29,045 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:44:29,046 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:44:29,246 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2421 [2021-04-15 03:44:29,246 INFO L428 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:44:29,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:44:29,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1670972492, now seen corresponding path program 105 times [2021-04-15 03:44:29,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:44:29,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904274121] [2021-04-15 03:44:29,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:44:29,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:44:29,292 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:44:29,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904274121] [2021-04-15 03:44:29,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172386934] [2021-04-15 03:44:29,293 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 [2021-04-15 03:44:29,318 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-04-15 03:44:29,318 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:44:29,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 43 conjunts are in the unsatisfiable core [2021-04-15 03:44:29,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:44:29,616 INFO L446 ElimStorePlain]: Different costs {28=[f_inv], 36=[f]} [2021-04-15 03:44:29,724 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 54 [2021-04-15 03:44:29,724 INFO L354 Elim1Store]: treesize reduction 171, result has 36.0 percent of original size [2021-04-15 03:44:29,725 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 [2021-04-15 03:44:30,160 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-04-15 03:44:30,204 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:44:30,268 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:44:30,268 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 10 new quantified variables, introduced 15 case distinctions, treesize of input 231 treesize of output 211 [2021-04-15 03:44:30,540 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-04-15 03:44:30,545 INFO L628 ElimStorePlain]: treesize reduction 9, result has 25.0 percent of original size [2021-04-15 03:44:30,545 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:44:30,545 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:213, output treesize:3 [2021-04-15 03:44:30,559 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:44:30,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:44:30,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14] total 20 [2021-04-15 03:44:30,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527708255] [2021-04-15 03:44:30,559 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-04-15 03:44:30,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:44:30,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-04-15 03:44:30,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-04-15 03:44:30,560 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) [2021-04-15 03:44:30,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:44:30,849 INFO L93 Difference]: Finished difference Result 23080 states and 59124 transitions. [2021-04-15 03:44:30,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 03:44:30,850 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 [2021-04-15 03:44:30,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:44:30,880 INFO L225 Difference]: With dead ends: 23080 [2021-04-15 03:44:30,880 INFO L226 Difference]: Without dead ends: 23054 [2021-04-15 03:44:30,880 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 266.9ms TimeCoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-04-15 03:44:30,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23054 states. [2021-04-15 03:44:31,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23054 to 22204. [2021-04-15 03:44:31,277 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) [2021-04-15 03:44:31,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22204 states to 22204 states and 57118 transitions. [2021-04-15 03:44:31,316 INFO L78 Accepts]: Start accepts. Automaton has 22204 states and 57118 transitions. Word has length 38 [2021-04-15 03:44:31,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:44:31,316 INFO L480 AbstractCegarLoop]: Abstraction has 22204 states and 57118 transitions. [2021-04-15 03:44:31,316 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) [2021-04-15 03:44:31,316 INFO L276 IsEmpty]: Start isEmpty. Operand 22204 states and 57118 transitions. [2021-04-15 03:44:31,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-04-15 03:44:31,329 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:44:31,329 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:44:31,530 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2433 [2021-04-15 03:44:31,530 INFO L428 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:44:31,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:44:31,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1456602700, now seen corresponding path program 106 times [2021-04-15 03:44:31,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:44:31,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468011736] [2021-04-15 03:44:31,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:44:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:44:31,579 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:44:31,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468011736] [2021-04-15 03:44:31,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164087316] [2021-04-15 03:44:31,579 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 [2021-04-15 03:44:31,603 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 03:44:31,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:44:31,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 39 conjunts are in the unsatisfiable core [2021-04-15 03:44:31,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:44:31,826 INFO L354 Elim1Store]: treesize reduction 48, result has 63.4 percent of original size [2021-04-15 03:44:31,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:44:31,830 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:44:31,875 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:44:31,877 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:44:31,877 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:140, output treesize:284 [2021-04-15 03:44:32,352 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-04-15 03:44:32,912 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 324 [2021-04-15 03:44:34,737 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 324 DAG size of output: 48 [2021-04-15 03:44:35,336 INFO L446 ElimStorePlain]: Different costs {10=[v_prenex_100], 15=[f, v_prenex_101, v_prenex_99, v_prenex_102, v_prenex_103]} [2021-04-15 03:44:35,346 INFO L354 Elim1Store]: treesize reduction 80, result has 1.2 percent of original size [2021-04-15 03:44:35,346 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 [2021-04-15 03:44:35,348 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:44:35,486 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 81 [2021-04-15 03:44:35,487 INFO L628 ElimStorePlain]: treesize reduction 447, result has 42.9 percent of original size [2021-04-15 03:44:35,574 INFO L354 Elim1Store]: treesize reduction 60, result has 50.4 percent of original size [2021-04-15 03:44:35,574 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 10 new quantified variables, introduced 15 case distinctions, treesize of input 87 treesize of output 99 [2021-04-15 03:44:35,576 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-04-15 03:44:35,616 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:44:35,638 INFO L354 Elim1Store]: treesize reduction 74, result has 8.6 percent of original size [2021-04-15 03:44:35,638 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 [2021-04-15 03:44:35,639 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-04-15 03:44:35,674 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:44:35,723 INFO L354 Elim1Store]: treesize reduction 44, result has 45.7 percent of original size [2021-04-15 03:44:35,723 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 [2021-04-15 03:44:35,725 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-04-15 03:44:35,755 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:44:35,784 INFO L354 Elim1Store]: treesize reduction 66, result has 18.5 percent of original size [2021-04-15 03:44:35,784 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 [2021-04-15 03:44:35,786 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-04-15 03:44:35,812 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:44:35,846 INFO L354 Elim1Store]: treesize reduction 57, result has 29.6 percent of original size [2021-04-15 03:44:35,846 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 [2021-04-15 03:44:35,848 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-04-15 03:44:35,870 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:44:35,873 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:44:35,873 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 12 variables, input treesize:936, output treesize:3 [2021-04-15 03:44:35,885 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:44:35,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:44:35,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14] total 20 [2021-04-15 03:44:35,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218793032] [2021-04-15 03:44:35,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-04-15 03:44:35,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:44:35,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-04-15 03:44:35,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2021-04-15 03:44:35,886 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) [2021-04-15 03:44:36,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:44:36,449 INFO L93 Difference]: Finished difference Result 23947 states and 61327 transitions. [2021-04-15 03:44:36,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-04-15 03:44:36,450 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 [2021-04-15 03:44:36,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:44:36,479 INFO L225 Difference]: With dead ends: 23947 [2021-04-15 03:44:36,480 INFO L226 Difference]: Without dead ends: 23910 [2021-04-15 03:44:36,480 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2310.7ms TimeCoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2021-04-15 03:44:36,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23910 states. [2021-04-15 03:44:36,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23910 to 22942. [2021-04-15 03:44:36,880 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) [2021-04-15 03:44:36,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22942 states to 22942 states and 59199 transitions. [2021-04-15 03:44:36,919 INFO L78 Accepts]: Start accepts. Automaton has 22942 states and 59199 transitions. Word has length 38 [2021-04-15 03:44:36,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:44:36,919 INFO L480 AbstractCegarLoop]: Abstraction has 22942 states and 59199 transitions. [2021-04-15 03:44:36,919 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) [2021-04-15 03:44:36,919 INFO L276 IsEmpty]: Start isEmpty. Operand 22942 states and 59199 transitions. [2021-04-15 03:44:36,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-04-15 03:44:36,933 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:44:36,933 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:44:37,134 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2682,107 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:44:37,134 INFO L428 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:44:37,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:44:37,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1605662796, now seen corresponding path program 107 times [2021-04-15 03:44:37,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:44:37,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092184239] [2021-04-15 03:44:37,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:44:37,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:44:37,182 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:44:37,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092184239] [2021-04-15 03:44:37,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970341068] [2021-04-15 03:44:37,182 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 [2021-04-15 03:44:37,206 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-04-15 03:44:37,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:44:37,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 45 conjunts are in the unsatisfiable core [2021-04-15 03:44:37,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:44:37,524 INFO L354 Elim1Store]: treesize reduction 96, result has 43.2 percent of original size [2021-04-15 03:44:37,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2021-04-15 03:44:38,330 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-04-15 03:44:38,377 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:44:38,876 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-04-15 03:44:38,876 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:163, output treesize:285 [2021-04-15 03:44:39,716 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-04-15 03:44:41,655 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-04-15 03:44:44,262 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 324 DAG size of output: 48 [2021-04-15 03:44:44,611 INFO L354 Elim1Store]: treesize reduction 101, result has 16.5 percent of original size [2021-04-15 03:44:44,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:44:44,614 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:44:44,751 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 85 [2021-04-15 03:44:44,751 INFO L628 ElimStorePlain]: treesize reduction 442, result has 42.7 percent of original size [2021-04-15 03:44:44,788 INFO L354 Elim1Store]: treesize reduction 108, result has 10.7 percent of original size [2021-04-15 03:44:44,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:44:44,790 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-04-15 03:44:44,835 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:44:44,877 INFO L354 Elim1Store]: treesize reduction 103, result has 14.9 percent of original size [2021-04-15 03:44:44,877 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 56 treesize of output 46 [2021-04-15 03:44:44,878 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-04-15 03:44:44,920 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:44:44,953 INFO L354 Elim1Store]: treesize reduction 111, result has 8.3 percent of original size [2021-04-15 03:44:44,953 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 75 treesize of output 41 [2021-04-15 03:44:44,955 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-04-15 03:44:44,990 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:44:45,075 INFO L354 Elim1Store]: treesize reduction 60, result has 50.4 percent of original size [2021-04-15 03:44:45,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:44:45,078 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-04-15 03:44:45,089 INFO L628 ElimStorePlain]: treesize reduction 84, result has 3.4 percent of original size [2021-04-15 03:44:45,090 INFO L518 ElimStorePlain]: Eliminatee v_prenex_117 vanished before elimination [2021-04-15 03:44:45,090 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:44:45,090 INFO L247 ElimStorePlain]: Needed 6 recursive calls to eliminate 12 variables, input treesize:920, output treesize:3 [2021-04-15 03:44:45,102 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:44:45,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:44:45,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14] total 20 [2021-04-15 03:44:45,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548196457] [2021-04-15 03:44:45,102 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-04-15 03:44:45,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:44:45,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-04-15 03:44:45,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2021-04-15 03:44:45,102 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) [2021-04-15 03:44:45,475 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2021-04-15 03:44:45,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:44:45,830 INFO L93 Difference]: Finished difference Result 24000 states and 61703 transitions. [2021-04-15 03:44:45,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-04-15 03:44:45,831 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 [2021-04-15 03:44:45,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:44:45,862 INFO L225 Difference]: With dead ends: 24000 [2021-04-15 03:44:45,862 INFO L226 Difference]: Without dead ends: 23993 [2021-04-15 03:44:45,862 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 3823.9ms TimeCoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2021-04-15 03:44:45,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23993 states. [2021-04-15 03:44:46,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23993 to 23411. [2021-04-15 03:44:46,162 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) [2021-04-15 03:44:46,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23411 states to 23411 states and 60517 transitions. [2021-04-15 03:44:46,204 INFO L78 Accepts]: Start accepts. Automaton has 23411 states and 60517 transitions. Word has length 38 [2021-04-15 03:44:46,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:44:46,204 INFO L480 AbstractCegarLoop]: Abstraction has 23411 states and 60517 transitions. [2021-04-15 03:44:46,204 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) [2021-04-15 03:44:46,204 INFO L276 IsEmpty]: Start isEmpty. Operand 23411 states and 60517 transitions. [2021-04-15 03:44:46,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:44:46,223 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:44:46,223 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:44:46,429 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2830 [2021-04-15 03:44:46,429 INFO L428 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:44:46,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:44:46,430 INFO L82 PathProgramCache]: Analyzing trace with hash -36252106, now seen corresponding path program 108 times [2021-04-15 03:44:46,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:44:46,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897656199] [2021-04-15 03:44:46,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:44:46,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:44:46,612 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 36 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:44:46,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897656199] [2021-04-15 03:44:46,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359117173] [2021-04-15 03:44:46,613 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 [2021-04-15 03:44:46,638 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-04-15 03:44:46,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:44:46,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:44:46,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:44:47,007 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 36 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:44:47,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:44:47,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 33 [2021-04-15 03:44:47,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204739754] [2021-04-15 03:44:47,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-04-15 03:44:47,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:44:47,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-04-15 03:44:47,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=908, Unknown=0, NotChecked=0, Total=1122 [2021-04-15 03:44:47,008 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) [2021-04-15 03:44:49,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:44:49,505 INFO L93 Difference]: Finished difference Result 25898 states and 65777 transitions. [2021-04-15 03:44:49,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-04-15 03:44:49,506 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 [2021-04-15 03:44:49,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:44:49,543 INFO L225 Difference]: With dead ends: 25898 [2021-04-15 03:44:49,544 INFO L226 Difference]: Without dead ends: 25898 [2021-04-15 03:44:49,545 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3673 ImplicationChecksByTransitivity, 2172.8ms TimeCoverageRelationStatistics Valid=3180, Invalid=9030, Unknown=0, NotChecked=0, Total=12210 [2021-04-15 03:44:49,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25898 states. [2021-04-15 03:44:49,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25898 to 21896. [2021-04-15 03:44:49,926 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) [2021-04-15 03:44:49,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21896 states to 21896 states and 56447 transitions. [2021-04-15 03:44:49,964 INFO L78 Accepts]: Start accepts. Automaton has 21896 states and 56447 transitions. Word has length 40 [2021-04-15 03:44:49,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:44:49,964 INFO L480 AbstractCegarLoop]: Abstraction has 21896 states and 56447 transitions. [2021-04-15 03:44:49,964 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) [2021-04-15 03:44:49,964 INFO L276 IsEmpty]: Start isEmpty. Operand 21896 states and 56447 transitions. [2021-04-15 03:44:49,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:44:49,980 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:44:49,980 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:44:50,180 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3691,109 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:44:50,180 INFO L428 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:44:50,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:44:50,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1222061710, now seen corresponding path program 109 times [2021-04-15 03:44:50,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:44:50,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017209522] [2021-04-15 03:44:50,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:44:50,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:44:50,358 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 49 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:44:50,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017209522] [2021-04-15 03:44:50,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402724036] [2021-04-15 03:44:50,358 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 [2021-04-15 03:44:50,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:44:50,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:44:50,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:44:50,771 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 49 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:44:50,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:44:50,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-04-15 03:44:50,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642638971] [2021-04-15 03:44:50,772 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-04-15 03:44:50,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:44:50,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-04-15 03:44:50,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=875, Unknown=0, NotChecked=0, Total=1056 [2021-04-15 03:44:50,772 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) [2021-04-15 03:44:54,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:44:54,744 INFO L93 Difference]: Finished difference Result 30410 states and 76384 transitions. [2021-04-15 03:44:54,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2021-04-15 03:44:54,745 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 [2021-04-15 03:44:54,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:44:54,790 INFO L225 Difference]: With dead ends: 30410 [2021-04-15 03:44:54,790 INFO L226 Difference]: Without dead ends: 30222 [2021-04-15 03:44:54,792 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7844 ImplicationChecksByTransitivity, 3711.3ms TimeCoverageRelationStatistics Valid=4727, Invalid=17923, Unknown=0, NotChecked=0, Total=22650 [2021-04-15 03:44:54,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30222 states. [2021-04-15 03:44:55,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30222 to 22632. [2021-04-15 03:44:55,237 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) [2021-04-15 03:44:55,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22632 states to 22632 states and 58343 transitions. [2021-04-15 03:44:55,278 INFO L78 Accepts]: Start accepts. Automaton has 22632 states and 58343 transitions. Word has length 40 [2021-04-15 03:44:55,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:44:55,278 INFO L480 AbstractCegarLoop]: Abstraction has 22632 states and 58343 transitions. [2021-04-15 03:44:55,278 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) [2021-04-15 03:44:55,278 INFO L276 IsEmpty]: Start isEmpty. Operand 22632 states and 58343 transitions. [2021-04-15 03:44:55,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:44:55,295 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:44:55,295 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:44:55,495 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 110 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3692 [2021-04-15 03:44:55,495 INFO L428 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:44:55,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:44:55,496 INFO L82 PathProgramCache]: Analyzing trace with hash -714294378, now seen corresponding path program 110 times [2021-04-15 03:44:55,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:44:55,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809954918] [2021-04-15 03:44:55,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:44:55,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:44:55,614 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 49 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:44:55,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809954918] [2021-04-15 03:44:55,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660729599] [2021-04-15 03:44:55,614 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 [2021-04-15 03:44:55,762 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 03:44:55,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:44:55,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:44:55,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:44:56,096 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 49 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:44:56,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:44:56,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 17] total 26 [2021-04-15 03:44:56,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881087782] [2021-04-15 03:44:56,097 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-04-15 03:44:56,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:44:56,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-04-15 03:44:56,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=581, Unknown=0, NotChecked=0, Total=702 [2021-04-15 03:44:56,097 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) [2021-04-15 03:44:59,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:44:59,344 INFO L93 Difference]: Finished difference Result 39864 states and 101563 transitions. [2021-04-15 03:44:59,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2021-04-15 03:44:59,345 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 [2021-04-15 03:44:59,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:44:59,399 INFO L225 Difference]: With dead ends: 39864 [2021-04-15 03:44:59,399 INFO L226 Difference]: Without dead ends: 39844 [2021-04-15 03:44:59,401 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6651 ImplicationChecksByTransitivity, 2759.5ms TimeCoverageRelationStatistics Valid=4595, Invalid=12961, Unknown=0, NotChecked=0, Total=17556 [2021-04-15 03:44:59,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39844 states. [2021-04-15 03:44:59,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39844 to 29497. [2021-04-15 03:44:59,885 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) [2021-04-15 03:44:59,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29497 states to 29497 states and 76018 transitions. [2021-04-15 03:44:59,938 INFO L78 Accepts]: Start accepts. Automaton has 29497 states and 76018 transitions. Word has length 40 [2021-04-15 03:44:59,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:44:59,938 INFO L480 AbstractCegarLoop]: Abstraction has 29497 states and 76018 transitions. [2021-04-15 03:44:59,938 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) [2021-04-15 03:44:59,938 INFO L276 IsEmpty]: Start isEmpty. Operand 29497 states and 76018 transitions. [2021-04-15 03:44:59,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:44:59,955 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:44:59,955 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:45:00,155 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 111 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3693 [2021-04-15 03:45:00,156 INFO L428 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:45:00,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:45:00,156 INFO L82 PathProgramCache]: Analyzing trace with hash -2098192460, now seen corresponding path program 111 times [2021-04-15 03:45:00,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:45:00,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860713319] [2021-04-15 03:45:00,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:45:00,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:45:00,249 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 43 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:45:00,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860713319] [2021-04-15 03:45:00,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812546478] [2021-04-15 03:45:00,249 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 [2021-04-15 03:45:00,275 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-04-15 03:45:00,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:45:00,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:45:00,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:45:00,722 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 43 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:45:00,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:45:00,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 17] total 26 [2021-04-15 03:45:00,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053963423] [2021-04-15 03:45:00,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-04-15 03:45:00,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:45:00,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-04-15 03:45:00,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=544, Unknown=0, NotChecked=0, Total=702 [2021-04-15 03:45:00,724 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) [2021-04-15 03:45:03,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:45:03,201 INFO L93 Difference]: Finished difference Result 30394 states and 77833 transitions. [2021-04-15 03:45:03,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-04-15 03:45:03,202 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 [2021-04-15 03:45:03,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:45:03,256 INFO L225 Difference]: With dead ends: 30394 [2021-04-15 03:45:03,257 INFO L226 Difference]: Without dead ends: 30390 [2021-04-15 03:45:03,258 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3712 ImplicationChecksByTransitivity, 2302.0ms TimeCoverageRelationStatistics Valid=2606, Invalid=8314, Unknown=0, NotChecked=0, Total=10920 [2021-04-15 03:45:03,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30390 states. [2021-04-15 03:45:03,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30390 to 29497. [2021-04-15 03:45:03,662 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) [2021-04-15 03:45:03,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29497 states to 29497 states and 76002 transitions. [2021-04-15 03:45:03,718 INFO L78 Accepts]: Start accepts. Automaton has 29497 states and 76002 transitions. Word has length 40 [2021-04-15 03:45:03,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:45:03,719 INFO L480 AbstractCegarLoop]: Abstraction has 29497 states and 76002 transitions. [2021-04-15 03:45:03,719 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) [2021-04-15 03:45:03,719 INFO L276 IsEmpty]: Start isEmpty. Operand 29497 states and 76002 transitions. [2021-04-15 03:45:03,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:45:03,736 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:45:03,736 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:45:03,937 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 112 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3694 [2021-04-15 03:45:03,937 INFO L428 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:45:03,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:45:03,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1992334194, now seen corresponding path program 112 times [2021-04-15 03:45:03,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:45:03,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497441967] [2021-04-15 03:45:03,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:45:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:45:04,028 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 53 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:45:04,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497441967] [2021-04-15 03:45:04,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482006391] [2021-04-15 03:45:04,029 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 [2021-04-15 03:45:04,051 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 03:45:04,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:45:04,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:45:04,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:45:04,399 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 43 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:45:04,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:45:04,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 17] total 26 [2021-04-15 03:45:04,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252169969] [2021-04-15 03:45:04,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-04-15 03:45:04,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:45:04,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-04-15 03:45:04,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=582, Unknown=0, NotChecked=0, Total=702 [2021-04-15 03:45:04,400 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) [2021-04-15 03:45:06,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:45:06,224 INFO L93 Difference]: Finished difference Result 37584 states and 96225 transitions. [2021-04-15 03:45:06,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-04-15 03:45:06,225 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 [2021-04-15 03:45:06,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:45:06,291 INFO L225 Difference]: With dead ends: 37584 [2021-04-15 03:45:06,292 INFO L226 Difference]: Without dead ends: 37560 [2021-04-15 03:45:06,293 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2330 ImplicationChecksByTransitivity, 1542.5ms TimeCoverageRelationStatistics Valid=1833, Invalid=5649, Unknown=0, NotChecked=0, Total=7482 [2021-04-15 03:45:06,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37560 states. [2021-04-15 03:45:06,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37560 to 29719. [2021-04-15 03:45:06,895 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) [2021-04-15 03:45:06,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29719 states to 29719 states and 76828 transitions. [2021-04-15 03:45:06,954 INFO L78 Accepts]: Start accepts. Automaton has 29719 states and 76828 transitions. Word has length 40 [2021-04-15 03:45:06,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:45:06,954 INFO L480 AbstractCegarLoop]: Abstraction has 29719 states and 76828 transitions. [2021-04-15 03:45:06,955 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) [2021-04-15 03:45:06,955 INFO L276 IsEmpty]: Start isEmpty. Operand 29719 states and 76828 transitions. [2021-04-15 03:45:06,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:45:06,972 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:45:06,972 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:45:07,172 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3695,113 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:45:07,172 INFO L428 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:45:07,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:45:07,173 INFO L82 PathProgramCache]: Analyzing trace with hash -1162838014, now seen corresponding path program 113 times [2021-04-15 03:45:07,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:45:07,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332800948] [2021-04-15 03:45:07,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:45:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:45:07,275 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 38 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:45:07,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332800948] [2021-04-15 03:45:07,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058625140] [2021-04-15 03:45:07,275 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 [2021-04-15 03:45:07,301 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2021-04-15 03:45:07,301 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:45:07,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:45:07,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:45:07,670 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 38 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:45:07,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:45:07,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 17] total 27 [2021-04-15 03:45:07,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580127036] [2021-04-15 03:45:07,670 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 03:45:07,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:45:07,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 03:45:07,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=602, Unknown=0, NotChecked=0, Total=756 [2021-04-15 03:45:07,671 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) [2021-04-15 03:45:10,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:45:10,239 INFO L93 Difference]: Finished difference Result 32131 states and 82168 transitions. [2021-04-15 03:45:10,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-04-15 03:45:10,240 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 [2021-04-15 03:45:10,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:45:10,290 INFO L225 Difference]: With dead ends: 32131 [2021-04-15 03:45:10,290 INFO L226 Difference]: Without dead ends: 32111 [2021-04-15 03:45:10,292 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3894 ImplicationChecksByTransitivity, 2154.7ms TimeCoverageRelationStatistics Valid=2672, Invalid=8670, Unknown=0, NotChecked=0, Total=11342 [2021-04-15 03:45:10,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32111 states. [2021-04-15 03:45:10,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32111 to 30307. [2021-04-15 03:45:10,781 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) [2021-04-15 03:45:10,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30307 states to 30307 states and 78403 transitions. [2021-04-15 03:45:10,844 INFO L78 Accepts]: Start accepts. Automaton has 30307 states and 78403 transitions. Word has length 40 [2021-04-15 03:45:10,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:45:10,844 INFO L480 AbstractCegarLoop]: Abstraction has 30307 states and 78403 transitions. [2021-04-15 03:45:10,844 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) [2021-04-15 03:45:10,844 INFO L276 IsEmpty]: Start isEmpty. Operand 30307 states and 78403 transitions. [2021-04-15 03:45:10,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:45:10,863 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:45:10,863 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:45:11,063 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3696,114 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:45:11,063 INFO L428 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:45:11,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:45:11,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1839241602, now seen corresponding path program 114 times [2021-04-15 03:45:11,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:45:11,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54066566] [2021-04-15 03:45:11,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:45:11,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:45:11,175 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 31 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:45:11,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54066566] [2021-04-15 03:45:11,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560113246] [2021-04-15 03:45:11,175 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 [2021-04-15 03:45:11,208 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-04-15 03:45:11,208 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:45:11,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:45:11,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:45:11,591 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 31 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:45:11,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:45:11,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17] total 28 [2021-04-15 03:45:11,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838132488] [2021-04-15 03:45:11,591 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-04-15 03:45:11,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:45:11,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-04-15 03:45:11,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=658, Unknown=0, NotChecked=0, Total=812 [2021-04-15 03:45:11,592 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) [2021-04-15 03:45:14,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:45:14,289 INFO L93 Difference]: Finished difference Result 33401 states and 85130 transitions. [2021-04-15 03:45:14,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-04-15 03:45:14,289 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 [2021-04-15 03:45:14,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:45:14,345 INFO L225 Difference]: With dead ends: 33401 [2021-04-15 03:45:14,345 INFO L226 Difference]: Without dead ends: 33361 [2021-04-15 03:45:14,347 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4153 ImplicationChecksByTransitivity, 2296.2ms TimeCoverageRelationStatistics Valid=2749, Invalid=9023, Unknown=0, NotChecked=0, Total=11772 [2021-04-15 03:45:14,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33361 states. [2021-04-15 03:45:14,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33361 to 30181. [2021-04-15 03:45:14,843 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) [2021-04-15 03:45:14,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30181 states to 30181 states and 78202 transitions. [2021-04-15 03:45:14,899 INFO L78 Accepts]: Start accepts. Automaton has 30181 states and 78202 transitions. Word has length 40 [2021-04-15 03:45:14,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:45:14,899 INFO L480 AbstractCegarLoop]: Abstraction has 30181 states and 78202 transitions. [2021-04-15 03:45:14,899 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) [2021-04-15 03:45:14,899 INFO L276 IsEmpty]: Start isEmpty. Operand 30181 states and 78202 transitions. [2021-04-15 03:45:14,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:45:14,916 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:45:14,916 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:45:15,117 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3697,115 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:45:15,118 INFO L428 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:45:15,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:45:15,118 INFO L82 PathProgramCache]: Analyzing trace with hash 971939322, now seen corresponding path program 115 times [2021-04-15 03:45:15,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:45:15,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174851916] [2021-04-15 03:45:15,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:45:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:45:15,266 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 28 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:45:15,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174851916] [2021-04-15 03:45:15,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392866946] [2021-04-15 03:45:15,267 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 [2021-04-15 03:45:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:45:15,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:45:15,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:45:15,660 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 28 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:45:15,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:45:15,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17] total 29 [2021-04-15 03:45:15,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634816946] [2021-04-15 03:45:15,661 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-04-15 03:45:15,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:45:15,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-04-15 03:45:15,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=712, Unknown=0, NotChecked=0, Total=870 [2021-04-15 03:45:15,661 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) [2021-04-15 03:45:18,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:45:18,139 INFO L93 Difference]: Finished difference Result 33916 states and 86143 transitions. [2021-04-15 03:45:18,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-04-15 03:45:18,140 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 [2021-04-15 03:45:18,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:45:18,190 INFO L225 Difference]: With dead ends: 33916 [2021-04-15 03:45:18,190 INFO L226 Difference]: Without dead ends: 33862 [2021-04-15 03:45:18,191 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4387 ImplicationChecksByTransitivity, 2153.2ms TimeCoverageRelationStatistics Valid=2836, Invalid=9374, Unknown=0, NotChecked=0, Total=12210 [2021-04-15 03:45:18,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33862 states. [2021-04-15 03:45:18,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33862 to 28876. [2021-04-15 03:45:18,627 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) [2021-04-15 03:45:18,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28876 states to 28876 states and 74988 transitions. [2021-04-15 03:45:18,681 INFO L78 Accepts]: Start accepts. Automaton has 28876 states and 74988 transitions. Word has length 40 [2021-04-15 03:45:18,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:45:18,681 INFO L480 AbstractCegarLoop]: Abstraction has 28876 states and 74988 transitions. [2021-04-15 03:45:18,681 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) [2021-04-15 03:45:18,681 INFO L276 IsEmpty]: Start isEmpty. Operand 28876 states and 74988 transitions. [2021-04-15 03:45:18,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:45:18,698 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:45:18,698 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:45:18,898 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3698,116 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:45:18,899 INFO L428 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:45:18,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:45:18,899 INFO L82 PathProgramCache]: Analyzing trace with hash 982378102, now seen corresponding path program 116 times [2021-04-15 03:45:18,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:45:18,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515776387] [2021-04-15 03:45:18,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:45:18,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:45:19,064 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 29 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:45:19,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515776387] [2021-04-15 03:45:19,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422593633] [2021-04-15 03:45:19,065 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) Waiting until toolchain timeout for monitored process 117 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:45:19,093 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 03:45:19,094 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:45:19,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:45:19,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:45:19,353 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 15 [2021-04-15 03:45:19,699 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 29 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:45:19,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:45:19,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17] total 30 [2021-04-15 03:45:19,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981811944] [2021-04-15 03:45:19,699 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-04-15 03:45:19,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:45:19,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-04-15 03:45:19,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=764, Unknown=0, NotChecked=0, Total=930 [2021-04-15 03:45:19,700 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) [2021-04-15 03:45:22,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:45:22,223 INFO L93 Difference]: Finished difference Result 33473 states and 84685 transitions. [2021-04-15 03:45:22,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-04-15 03:45:22,224 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 [2021-04-15 03:45:22,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:45:22,272 INFO L225 Difference]: With dead ends: 33473 [2021-04-15 03:45:22,272 INFO L226 Difference]: Without dead ends: 33417 [2021-04-15 03:45:22,273 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4604 ImplicationChecksByTransitivity, 2339.9ms TimeCoverageRelationStatistics Valid=2932, Invalid=9724, Unknown=0, NotChecked=0, Total=12656 [2021-04-15 03:45:22,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33417 states. [2021-04-15 03:45:22,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33417 to 26468. [2021-04-15 03:45:22,723 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) [2021-04-15 03:45:22,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26468 states to 26468 states and 68855 transitions. [2021-04-15 03:45:22,772 INFO L78 Accepts]: Start accepts. Automaton has 26468 states and 68855 transitions. Word has length 40 [2021-04-15 03:45:22,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:45:22,772 INFO L480 AbstractCegarLoop]: Abstraction has 26468 states and 68855 transitions. [2021-04-15 03:45:22,772 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) [2021-04-15 03:45:22,772 INFO L276 IsEmpty]: Start isEmpty. Operand 26468 states and 68855 transitions. [2021-04-15 03:45:22,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:45:22,787 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:45:22,787 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:45:22,987 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3699,117 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:45:22,987 INFO L428 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:45:22,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:45:22,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1870856206, now seen corresponding path program 117 times [2021-04-15 03:45:22,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:45:22,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084118729] [2021-04-15 03:45:22,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:45:22,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:45:23,176 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 34 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:45:23,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084118729] [2021-04-15 03:45:23,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095973435] [2021-04-15 03:45:23,177 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 [2021-04-15 03:45:23,203 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-04-15 03:45:23,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:45:23,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:45:23,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:45:23,605 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 34 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:45:23,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:45:23,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 31 [2021-04-15 03:45:23,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100432648] [2021-04-15 03:45:23,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-04-15 03:45:23,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:45:23,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-04-15 03:45:23,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=814, Unknown=0, NotChecked=0, Total=992 [2021-04-15 03:45:23,606 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) [2021-04-15 03:45:26,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:45:26,123 INFO L93 Difference]: Finished difference Result 32096 states and 80790 transitions. [2021-04-15 03:45:26,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-04-15 03:45:26,124 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 [2021-04-15 03:45:26,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:45:26,178 INFO L225 Difference]: With dead ends: 32096 [2021-04-15 03:45:26,178 INFO L226 Difference]: Without dead ends: 32046 [2021-04-15 03:45:26,180 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4740 ImplicationChecksByTransitivity, 2332.0ms TimeCoverageRelationStatistics Valid=3036, Invalid=10074, Unknown=0, NotChecked=0, Total=13110 [2021-04-15 03:45:26,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32046 states. [2021-04-15 03:45:26,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32046 to 24004. [2021-04-15 03:45:26,636 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) [2021-04-15 03:45:26,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24004 states to 24004 states and 62399 transitions. [2021-04-15 03:45:26,683 INFO L78 Accepts]: Start accepts. Automaton has 24004 states and 62399 transitions. Word has length 40 [2021-04-15 03:45:26,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:45:26,683 INFO L480 AbstractCegarLoop]: Abstraction has 24004 states and 62399 transitions. [2021-04-15 03:45:26,683 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) [2021-04-15 03:45:26,683 INFO L276 IsEmpty]: Start isEmpty. Operand 24004 states and 62399 transitions. [2021-04-15 03:45:26,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:45:26,698 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:45:26,698 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:45:26,898 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3700,118 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:45:26,898 INFO L428 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:45:26,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:45:26,899 INFO L82 PathProgramCache]: Analyzing trace with hash -69717194, now seen corresponding path program 118 times [2021-04-15 03:45:26,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:45:26,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604797528] [2021-04-15 03:45:26,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:45:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:45:27,103 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 35 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:45:27,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604797528] [2021-04-15 03:45:27,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764433144] [2021-04-15 03:45:27,103 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 [2021-04-15 03:45:27,132 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 03:45:27,132 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:45:27,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:45:27,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:45:27,592 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:45:27,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:45:27,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-04-15 03:45:27,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911289860] [2021-04-15 03:45:27,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-04-15 03:45:27,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:45:27,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-04-15 03:45:27,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=869, Unknown=0, NotChecked=0, Total=1056 [2021-04-15 03:45:27,593 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) [2021-04-15 03:45:30,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:45:30,243 INFO L93 Difference]: Finished difference Result 28131 states and 70967 transitions. [2021-04-15 03:45:30,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-04-15 03:45:30,244 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 [2021-04-15 03:45:30,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:45:30,285 INFO L225 Difference]: With dead ends: 28131 [2021-04-15 03:45:30,285 INFO L226 Difference]: Without dead ends: 28131 [2021-04-15 03:45:30,286 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3698 ImplicationChecksByTransitivity, 2399.7ms TimeCoverageRelationStatistics Valid=2970, Invalid=9240, Unknown=0, NotChecked=0, Total=12210 [2021-04-15 03:45:30,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28131 states. [2021-04-15 03:45:30,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28131 to 21876. [2021-04-15 03:45:30,588 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) [2021-04-15 03:45:30,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21876 states to 21876 states and 56775 transitions. [2021-04-15 03:45:30,627 INFO L78 Accepts]: Start accepts. Automaton has 21876 states and 56775 transitions. Word has length 40 [2021-04-15 03:45:30,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:45:30,627 INFO L480 AbstractCegarLoop]: Abstraction has 21876 states and 56775 transitions. [2021-04-15 03:45:30,627 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) [2021-04-15 03:45:30,627 INFO L276 IsEmpty]: Start isEmpty. Operand 21876 states and 56775 transitions. [2021-04-15 03:45:30,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:45:30,639 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:45:30,639 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:45:30,839 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 119 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3701 [2021-04-15 03:45:30,839 INFO L428 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:45:30,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:45:30,839 INFO L82 PathProgramCache]: Analyzing trace with hash 715640178, now seen corresponding path program 119 times [2021-04-15 03:45:30,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:45:30,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319847224] [2021-04-15 03:45:30,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:45:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:45:31,014 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 38 proven. 46 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:45:31,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319847224] [2021-04-15 03:45:31,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894827877] [2021-04-15 03:45:31,014 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 [2021-04-15 03:45:31,038 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-04-15 03:45:31,039 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:45:31,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:45:31,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:45:31,456 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 38 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:45:31,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:45:31,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 31 [2021-04-15 03:45:31,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478676459] [2021-04-15 03:45:31,457 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-04-15 03:45:31,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:45:31,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-04-15 03:45:31,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=826, Unknown=0, NotChecked=0, Total=992 [2021-04-15 03:45:31,457 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) [2021-04-15 03:45:34,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:45:34,664 INFO L93 Difference]: Finished difference Result 25120 states and 63294 transitions. [2021-04-15 03:45:34,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2021-04-15 03:45:34,665 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 [2021-04-15 03:45:34,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:45:34,697 INFO L225 Difference]: With dead ends: 25120 [2021-04-15 03:45:34,698 INFO L226 Difference]: Without dead ends: 24982 [2021-04-15 03:45:34,698 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5780 ImplicationChecksByTransitivity, 2895.8ms TimeCoverageRelationStatistics Valid=3320, Invalid=12682, Unknown=0, NotChecked=0, Total=16002 [2021-04-15 03:45:34,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24982 states. [2021-04-15 03:45:34,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24982 to 21296. [2021-04-15 03:45:35,015 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) [2021-04-15 03:45:35,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21296 states to 21296 states and 55035 transitions. [2021-04-15 03:45:35,050 INFO L78 Accepts]: Start accepts. Automaton has 21296 states and 55035 transitions. Word has length 40 [2021-04-15 03:45:35,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:45:35,051 INFO L480 AbstractCegarLoop]: Abstraction has 21296 states and 55035 transitions. [2021-04-15 03:45:35,051 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) [2021-04-15 03:45:35,051 INFO L276 IsEmpty]: Start isEmpty. Operand 21296 states and 55035 transitions. [2021-04-15 03:45:35,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:45:35,062 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:45:35,062 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:45:35,262 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3702,120 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:45:35,262 INFO L428 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:45:35,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:45:35,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1418514486, now seen corresponding path program 120 times [2021-04-15 03:45:35,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:45:35,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480901029] [2021-04-15 03:45:35,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:45:35,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:45:35,413 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 34 proven. 50 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:45:35,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480901029] [2021-04-15 03:45:35,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466470958] [2021-04-15 03:45:35,413 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 [2021-04-15 03:45:35,438 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-04-15 03:45:35,438 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:45:35,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:45:35,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:45:35,832 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:45:35,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:45:35,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 31 [2021-04-15 03:45:35,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930348666] [2021-04-15 03:45:35,833 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-04-15 03:45:35,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:45:35,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-04-15 03:45:35,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=823, Unknown=0, NotChecked=0, Total=992 [2021-04-15 03:45:35,833 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) [2021-04-15 03:45:38,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:45:38,951 INFO L93 Difference]: Finished difference Result 26874 states and 67135 transitions. [2021-04-15 03:45:38,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-04-15 03:45:38,952 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 [2021-04-15 03:45:38,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:45:38,990 INFO L225 Difference]: With dead ends: 26874 [2021-04-15 03:45:38,990 INFO L226 Difference]: Without dead ends: 26874 [2021-04-15 03:45:38,991 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4431 ImplicationChecksByTransitivity, 2587.0ms TimeCoverageRelationStatistics Valid=3338, Invalid=10234, Unknown=0, NotChecked=0, Total=13572 [2021-04-15 03:45:39,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26874 states. [2021-04-15 03:45:39,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26874 to 19476. [2021-04-15 03:45:39,277 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) [2021-04-15 03:45:39,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19476 states to 19476 states and 50170 transitions. [2021-04-15 03:45:39,310 INFO L78 Accepts]: Start accepts. Automaton has 19476 states and 50170 transitions. Word has length 40 [2021-04-15 03:45:39,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:45:39,310 INFO L480 AbstractCegarLoop]: Abstraction has 19476 states and 50170 transitions. [2021-04-15 03:45:39,310 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) [2021-04-15 03:45:39,310 INFO L276 IsEmpty]: Start isEmpty. Operand 19476 states and 50170 transitions. [2021-04-15 03:45:39,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:45:39,321 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:45:39,321 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:45:39,521 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3703,121 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:45:39,521 INFO L428 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:45:39,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:45:39,521 INFO L82 PathProgramCache]: Analyzing trace with hash 699779442, now seen corresponding path program 121 times [2021-04-15 03:45:39,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:45:39,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391078273] [2021-04-15 03:45:39,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:45:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:45:39,665 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 32 proven. 52 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:45:39,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391078273] [2021-04-15 03:45:39,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707276044] [2021-04-15 03:45:39,666 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 [2021-04-15 03:45:39,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:45:39,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:45:39,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:45:40,122 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 31 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:45:40,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:45:40,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17] total 30 [2021-04-15 03:45:40,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126165519] [2021-04-15 03:45:40,122 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-04-15 03:45:40,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:45:40,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-04-15 03:45:40,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=775, Unknown=0, NotChecked=0, Total=930 [2021-04-15 03:45:40,123 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) [2021-04-15 03:45:42,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:45:42,972 INFO L93 Difference]: Finished difference Result 22442 states and 56490 transitions. [2021-04-15 03:45:42,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-04-15 03:45:42,973 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 [2021-04-15 03:45:42,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:45:43,002 INFO L225 Difference]: With dead ends: 22442 [2021-04-15 03:45:43,002 INFO L226 Difference]: Without dead ends: 22343 [2021-04-15 03:45:43,003 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5030 ImplicationChecksByTransitivity, 2601.2ms TimeCoverageRelationStatistics Valid=2802, Invalid=10770, Unknown=0, NotChecked=0, Total=13572 [2021-04-15 03:45:43,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22343 states. [2021-04-15 03:45:43,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22343 to 19294. [2021-04-15 03:45:43,322 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) [2021-04-15 03:45:43,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19294 states to 19294 states and 49525 transitions. [2021-04-15 03:45:43,354 INFO L78 Accepts]: Start accepts. Automaton has 19294 states and 49525 transitions. Word has length 40 [2021-04-15 03:45:43,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:45:43,354 INFO L480 AbstractCegarLoop]: Abstraction has 19294 states and 49525 transitions. [2021-04-15 03:45:43,354 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) [2021-04-15 03:45:43,354 INFO L276 IsEmpty]: Start isEmpty. Operand 19294 states and 49525 transitions. [2021-04-15 03:45:43,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:45:43,365 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:45:43,366 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:45:43,566 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 122 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3704 [2021-04-15 03:45:43,566 INFO L428 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:45:43,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:45:43,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1681609418, now seen corresponding path program 122 times [2021-04-15 03:45:43,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:45:43,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028997731] [2021-04-15 03:45:43,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:45:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:45:43,716 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 33 proven. 51 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:45:43,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028997731] [2021-04-15 03:45:43,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118761413] [2021-04-15 03:45:43,716 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 [2021-04-15 03:45:43,739 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 03:45:43,739 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:45:43,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:45:43,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:45:44,138 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:45:44,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:45:44,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17] total 30 [2021-04-15 03:45:44,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482058123] [2021-04-15 03:45:44,138 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-04-15 03:45:44,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:45:44,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-04-15 03:45:44,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=775, Unknown=0, NotChecked=0, Total=930 [2021-04-15 03:45:44,139 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) [2021-04-15 03:45:47,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:45:47,498 INFO L93 Difference]: Finished difference Result 25902 states and 64230 transitions. [2021-04-15 03:45:47,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-04-15 03:45:47,499 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 [2021-04-15 03:45:47,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:45:47,531 INFO L225 Difference]: With dead ends: 25902 [2021-04-15 03:45:47,531 INFO L226 Difference]: Without dead ends: 25902 [2021-04-15 03:45:47,533 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5410 ImplicationChecksByTransitivity, 2853.4ms TimeCoverageRelationStatistics Valid=3958, Invalid=11542, Unknown=0, NotChecked=0, Total=15500 [2021-04-15 03:45:47,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25902 states. [2021-04-15 03:45:47,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25902 to 17898. [2021-04-15 03:45:47,808 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) [2021-04-15 03:45:47,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17898 states to 17898 states and 45734 transitions. [2021-04-15 03:45:47,838 INFO L78 Accepts]: Start accepts. Automaton has 17898 states and 45734 transitions. Word has length 40 [2021-04-15 03:45:47,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:45:47,838 INFO L480 AbstractCegarLoop]: Abstraction has 17898 states and 45734 transitions. [2021-04-15 03:45:47,839 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) [2021-04-15 03:45:47,839 INFO L276 IsEmpty]: Start isEmpty. Operand 17898 states and 45734 transitions. [2021-04-15 03:45:47,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:45:47,850 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:45:47,850 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:45:48,050 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3705,123 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:45:48,051 INFO L428 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:45:48,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:45:48,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1276298610, now seen corresponding path program 123 times [2021-04-15 03:45:48,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:45:48,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328226206] [2021-04-15 03:45:48,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:45:48,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:45:48,205 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 54 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:45:48,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328226206] [2021-04-15 03:45:48,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299749364] [2021-04-15 03:45:48,205 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 [2021-04-15 03:45:48,231 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-04-15 03:45:48,231 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:45:48,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:45:48,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:45:48,626 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 28 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:45:48,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:45:48,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17] total 29 [2021-04-15 03:45:48,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616645896] [2021-04-15 03:45:48,627 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-04-15 03:45:48,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:45:48,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-04-15 03:45:48,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=722, Unknown=0, NotChecked=0, Total=870 [2021-04-15 03:45:48,628 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) [2021-04-15 03:45:51,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:45:51,207 INFO L93 Difference]: Finished difference Result 20487 states and 51579 transitions. [2021-04-15 03:45:51,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-04-15 03:45:51,208 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 [2021-04-15 03:45:51,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:45:51,236 INFO L225 Difference]: With dead ends: 20487 [2021-04-15 03:45:51,236 INFO L226 Difference]: Without dead ends: 20421 [2021-04-15 03:45:51,237 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4431 ImplicationChecksByTransitivity, 2322.2ms TimeCoverageRelationStatistics Valid=2466, Invalid=9306, Unknown=0, NotChecked=0, Total=11772 [2021-04-15 03:45:51,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20421 states. [2021-04-15 03:45:51,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20421 to 18251. [2021-04-15 03:45:51,533 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) [2021-04-15 03:45:51,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18251 states to 18251 states and 46655 transitions. [2021-04-15 03:45:51,566 INFO L78 Accepts]: Start accepts. Automaton has 18251 states and 46655 transitions. Word has length 40 [2021-04-15 03:45:51,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:45:51,567 INFO L480 AbstractCegarLoop]: Abstraction has 18251 states and 46655 transitions. [2021-04-15 03:45:51,567 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) [2021-04-15 03:45:51,567 INFO L276 IsEmpty]: Start isEmpty. Operand 18251 states and 46655 transitions. [2021-04-15 03:45:51,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:45:51,581 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:45:51,581 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:45:51,796 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 124 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3706 [2021-04-15 03:45:51,797 INFO L428 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:45:51,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:45:51,797 INFO L82 PathProgramCache]: Analyzing trace with hash 424659510, now seen corresponding path program 124 times [2021-04-15 03:45:51,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:45:51,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901142119] [2021-04-15 03:45:51,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:45:51,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:45:51,928 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 32 proven. 52 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:45:51,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901142119] [2021-04-15 03:45:51,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356751815] [2021-04-15 03:45:51,928 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 [2021-04-15 03:45:51,951 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 03:45:51,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:45:51,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:45:51,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:45:52,366 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:45:52,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:45:52,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17] total 29 [2021-04-15 03:45:52,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515538989] [2021-04-15 03:45:52,367 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-04-15 03:45:52,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:45:52,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-04-15 03:45:52,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=725, Unknown=0, NotChecked=0, Total=870 [2021-04-15 03:45:52,367 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) [2021-04-15 03:45:56,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:45:56,036 INFO L93 Difference]: Finished difference Result 25865 states and 63837 transitions. [2021-04-15 03:45:56,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-04-15 03:45:56,037 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 [2021-04-15 03:45:56,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:45:56,072 INFO L225 Difference]: With dead ends: 25865 [2021-04-15 03:45:56,073 INFO L226 Difference]: Without dead ends: 25865 [2021-04-15 03:45:56,075 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6848 ImplicationChecksByTransitivity, 3147.9ms TimeCoverageRelationStatistics Valid=4818, Invalid=13272, Unknown=0, NotChecked=0, Total=18090 [2021-04-15 03:45:56,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25865 states. [2021-04-15 03:45:56,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25865 to 17253. [2021-04-15 03:45:56,380 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) [2021-04-15 03:45:56,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17253 states to 17253 states and 43844 transitions. [2021-04-15 03:45:56,410 INFO L78 Accepts]: Start accepts. Automaton has 17253 states and 43844 transitions. Word has length 40 [2021-04-15 03:45:56,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:45:56,411 INFO L480 AbstractCegarLoop]: Abstraction has 17253 states and 43844 transitions. [2021-04-15 03:45:56,411 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) [2021-04-15 03:45:56,411 INFO L276 IsEmpty]: Start isEmpty. Operand 17253 states and 43844 transitions. [2021-04-15 03:45:56,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:45:56,421 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:45:56,421 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:45:56,622 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 125 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3707 [2021-04-15 03:45:56,622 INFO L428 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:45:56,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:45:56,622 INFO L82 PathProgramCache]: Analyzing trace with hash 427737458, now seen corresponding path program 125 times [2021-04-15 03:45:56,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:45:56,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974721784] [2021-04-15 03:45:56,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:45:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:45:56,734 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 32 proven. 52 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:45:56,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974721784] [2021-04-15 03:45:56,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972934126] [2021-04-15 03:45:56,735 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 [2021-04-15 03:45:56,760 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-04-15 03:45:56,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:45:56,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:45:56,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:45:57,167 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 29 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:45:57,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:45:57,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17] total 28 [2021-04-15 03:45:57,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946627798] [2021-04-15 03:45:57,167 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-04-15 03:45:57,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:45:57,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-04-15 03:45:57,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2021-04-15 03:45:57,168 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) [2021-04-15 03:45:59,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:45:59,514 INFO L93 Difference]: Finished difference Result 19251 states and 48390 transitions. [2021-04-15 03:45:59,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-04-15 03:45:59,515 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 [2021-04-15 03:45:59,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:45:59,539 INFO L225 Difference]: With dead ends: 19251 [2021-04-15 03:45:59,539 INFO L226 Difference]: Without dead ends: 19212 [2021-04-15 03:45:59,540 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3960 ImplicationChecksByTransitivity, 2125.4ms TimeCoverageRelationStatistics Valid=2263, Invalid=8243, Unknown=0, NotChecked=0, Total=10506 [2021-04-15 03:45:59,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19212 states. [2021-04-15 03:45:59,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19212 to 17619. [2021-04-15 03:45:59,791 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) [2021-04-15 03:45:59,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17619 states to 17619 states and 44856 transitions. [2021-04-15 03:45:59,820 INFO L78 Accepts]: Start accepts. Automaton has 17619 states and 44856 transitions. Word has length 40 [2021-04-15 03:45:59,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:45:59,820 INFO L480 AbstractCegarLoop]: Abstraction has 17619 states and 44856 transitions. [2021-04-15 03:45:59,820 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) [2021-04-15 03:45:59,820 INFO L276 IsEmpty]: Start isEmpty. Operand 17619 states and 44856 transitions. [2021-04-15 03:45:59,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:45:59,830 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:45:59,830 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:46:00,030 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 126 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3708 [2021-04-15 03:46:00,030 INFO L428 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:46:00,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:46:00,031 INFO L82 PathProgramCache]: Analyzing trace with hash -922867914, now seen corresponding path program 126 times [2021-04-15 03:46:00,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:46:00,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812253205] [2021-04-15 03:46:00,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:46:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:46:00,151 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 31 proven. 53 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:46:00,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812253205] [2021-04-15 03:46:00,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434540083] [2021-04-15 03:46:00,152 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 [2021-04-15 03:46:00,177 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-04-15 03:46:00,177 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:46:00,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:46:00,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:46:00,582 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:46:00,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:46:00,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17] total 28 [2021-04-15 03:46:00,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674949725] [2021-04-15 03:46:00,583 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-04-15 03:46:00,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:46:00,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-04-15 03:46:00,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=673, Unknown=0, NotChecked=0, Total=812 [2021-04-15 03:46:00,583 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) [2021-04-15 03:46:04,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:46:04,304 INFO L93 Difference]: Finished difference Result 28254 states and 69498 transitions. [2021-04-15 03:46:04,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2021-04-15 03:46:04,305 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 [2021-04-15 03:46:04,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:46:04,345 INFO L225 Difference]: With dead ends: 28254 [2021-04-15 03:46:04,345 INFO L226 Difference]: Without dead ends: 28254 [2021-04-15 03:46:04,348 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7942 ImplicationChecksByTransitivity, 3262.1ms TimeCoverageRelationStatistics Valid=5440, Invalid=14300, Unknown=0, NotChecked=0, Total=19740 [2021-04-15 03:46:04,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28254 states. [2021-04-15 03:46:04,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28254 to 22012. [2021-04-15 03:46:04,693 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) [2021-04-15 03:46:04,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22012 states to 22012 states and 55487 transitions. [2021-04-15 03:46:04,732 INFO L78 Accepts]: Start accepts. Automaton has 22012 states and 55487 transitions. Word has length 40 [2021-04-15 03:46:04,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:46:04,732 INFO L480 AbstractCegarLoop]: Abstraction has 22012 states and 55487 transitions. [2021-04-15 03:46:04,732 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) [2021-04-15 03:46:04,732 INFO L276 IsEmpty]: Start isEmpty. Operand 22012 states and 55487 transitions. [2021-04-15 03:46:04,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:46:04,744 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:46:04,744 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:46:04,945 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 127 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3709 [2021-04-15 03:46:04,945 INFO L428 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:46:04,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:46:04,945 INFO L82 PathProgramCache]: Analyzing trace with hash 163167602, now seen corresponding path program 127 times [2021-04-15 03:46:04,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:46:04,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371465242] [2021-04-15 03:46:04,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:46:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:46:05,054 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 38 proven. 46 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:46:05,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371465242] [2021-04-15 03:46:05,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107671161] [2021-04-15 03:46:05,054 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 [2021-04-15 03:46:05,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:46:05,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:46:05,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:46:05,481 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 34 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:46:05,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:46:05,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 17] total 27 [2021-04-15 03:46:05,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438633033] [2021-04-15 03:46:05,482 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 03:46:05,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:46:05,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 03:46:05,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=610, Unknown=0, NotChecked=0, Total=756 [2021-04-15 03:46:05,482 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) [2021-04-15 03:46:07,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:46:07,917 INFO L93 Difference]: Finished difference Result 23071 states and 57669 transitions. [2021-04-15 03:46:07,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-04-15 03:46:07,918 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 [2021-04-15 03:46:07,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:46:07,948 INFO L225 Difference]: With dead ends: 23071 [2021-04-15 03:46:07,948 INFO L226 Difference]: Without dead ends: 23053 [2021-04-15 03:46:07,949 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3632 ImplicationChecksByTransitivity, 2123.5ms TimeCoverageRelationStatistics Valid=2150, Invalid=7552, Unknown=0, NotChecked=0, Total=9702 [2021-04-15 03:46:07,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23053 states. [2021-04-15 03:46:08,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23053 to 22214. [2021-04-15 03:46:08,253 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) [2021-04-15 03:46:08,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22214 states to 22214 states and 56037 transitions. [2021-04-15 03:46:08,293 INFO L78 Accepts]: Start accepts. Automaton has 22214 states and 56037 transitions. Word has length 40 [2021-04-15 03:46:08,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:46:08,294 INFO L480 AbstractCegarLoop]: Abstraction has 22214 states and 56037 transitions. [2021-04-15 03:46:08,294 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) [2021-04-15 03:46:08,294 INFO L276 IsEmpty]: Start isEmpty. Operand 22214 states and 56037 transitions. [2021-04-15 03:46:08,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:46:08,306 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:46:08,306 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:46:08,506 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 128 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3710 [2021-04-15 03:46:08,506 INFO L428 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:46:08,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:46:08,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1520419894, now seen corresponding path program 128 times [2021-04-15 03:46:08,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:46:08,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69494050] [2021-04-15 03:46:08,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:46:08,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:46:08,651 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 54 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:46:08,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69494050] [2021-04-15 03:46:08,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026150036] [2021-04-15 03:46:08,652 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 [2021-04-15 03:46:08,679 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 03:46:08,680 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:46:08,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:46:08,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:46:09,104 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:46:09,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:46:09,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 17] total 27 [2021-04-15 03:46:09,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997827560] [2021-04-15 03:46:09,105 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 03:46:09,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:46:09,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 03:46:09,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=619, Unknown=0, NotChecked=0, Total=756 [2021-04-15 03:46:09,106 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) [2021-04-15 03:46:13,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:46:13,026 INFO L93 Difference]: Finished difference Result 36775 states and 91582 transitions. [2021-04-15 03:46:13,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2021-04-15 03:46:13,028 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 [2021-04-15 03:46:13,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:46:13,081 INFO L225 Difference]: With dead ends: 36775 [2021-04-15 03:46:13,081 INFO L226 Difference]: Without dead ends: 36775 [2021-04-15 03:46:13,083 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8274 ImplicationChecksByTransitivity, 3377.1ms TimeCoverageRelationStatistics Valid=5518, Invalid=14504, Unknown=0, NotChecked=0, Total=20022 [2021-04-15 03:46:13,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36775 states. [2021-04-15 03:46:13,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36775 to 32904. [2021-04-15 03:46:13,585 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) [2021-04-15 03:46:13,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32904 states to 32904 states and 83244 transitions. [2021-04-15 03:46:13,832 INFO L78 Accepts]: Start accepts. Automaton has 32904 states and 83244 transitions. Word has length 40 [2021-04-15 03:46:13,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:46:13,833 INFO L480 AbstractCegarLoop]: Abstraction has 32904 states and 83244 transitions. [2021-04-15 03:46:13,833 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) [2021-04-15 03:46:13,833 INFO L276 IsEmpty]: Start isEmpty. Operand 32904 states and 83244 transitions. [2021-04-15 03:46:13,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:46:13,847 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:46:13,847 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:46:14,047 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 129 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3711 [2021-04-15 03:46:14,047 INFO L428 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:46:14,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:46:14,048 INFO L82 PathProgramCache]: Analyzing trace with hash -425600740, now seen corresponding path program 129 times [2021-04-15 03:46:14,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:46:14,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545460193] [2021-04-15 03:46:14,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:46:14,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:46:14,147 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 43 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:46:14,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545460193] [2021-04-15 03:46:14,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883407979] [2021-04-15 03:46:14,147 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 [2021-04-15 03:46:14,172 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-04-15 03:46:14,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:46:14,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:46:14,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:46:14,549 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 38 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:46:14,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:46:14,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 17] total 26 [2021-04-15 03:46:14,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067997832] [2021-04-15 03:46:14,549 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-04-15 03:46:14,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:46:14,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-04-15 03:46:14,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=567, Unknown=0, NotChecked=0, Total=702 [2021-04-15 03:46:14,550 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) [2021-04-15 03:46:16,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:46:16,798 INFO L93 Difference]: Finished difference Result 35887 states and 89458 transitions. [2021-04-15 03:46:16,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-04-15 03:46:16,799 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 [2021-04-15 03:46:16,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:46:16,849 INFO L225 Difference]: With dead ends: 35887 [2021-04-15 03:46:16,850 INFO L226 Difference]: Without dead ends: 35883 [2021-04-15 03:46:16,851 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3426 ImplicationChecksByTransitivity, 1936.2ms TimeCoverageRelationStatistics Valid=2678, Invalid=7024, Unknown=0, NotChecked=0, Total=9702 [2021-04-15 03:46:16,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35883 states. [2021-04-15 03:46:17,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35883 to 32269. [2021-04-15 03:46:17,346 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) [2021-04-15 03:46:17,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32269 states to 32269 states and 81524 transitions. [2021-04-15 03:46:17,405 INFO L78 Accepts]: Start accepts. Automaton has 32269 states and 81524 transitions. Word has length 40 [2021-04-15 03:46:17,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:46:17,405 INFO L480 AbstractCegarLoop]: Abstraction has 32269 states and 81524 transitions. [2021-04-15 03:46:17,405 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) [2021-04-15 03:46:17,405 INFO L276 IsEmpty]: Start isEmpty. Operand 32269 states and 81524 transitions. [2021-04-15 03:46:17,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:46:17,420 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:46:17,420 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:46:17,621 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3712,130 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:46:17,621 INFO L428 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:46:17,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:46:17,621 INFO L82 PathProgramCache]: Analyzing trace with hash -931947006, now seen corresponding path program 130 times [2021-04-15 03:46:17,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:46:17,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487035230] [2021-04-15 03:46:17,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:46:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:46:17,732 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 37 proven. 47 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:46:17,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487035230] [2021-04-15 03:46:17,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859354921] [2021-04-15 03:46:17,732 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 [2021-04-15 03:46:17,754 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 03:46:17,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:46:17,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:46:17,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:46:18,147 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 33 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:46:18,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:46:18,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 17] total 27 [2021-04-15 03:46:18,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6280412] [2021-04-15 03:46:18,148 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 03:46:18,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:46:18,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 03:46:18,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2021-04-15 03:46:18,148 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) [2021-04-15 03:46:20,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:46:20,440 INFO L93 Difference]: Finished difference Result 36401 states and 90806 transitions. [2021-04-15 03:46:20,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-04-15 03:46:20,441 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 [2021-04-15 03:46:20,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:46:20,500 INFO L225 Difference]: With dead ends: 36401 [2021-04-15 03:46:20,500 INFO L226 Difference]: Without dead ends: 36389 [2021-04-15 03:46:20,501 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3240 ImplicationChecksByTransitivity, 1948.0ms TimeCoverageRelationStatistics Valid=2417, Invalid=6895, Unknown=0, NotChecked=0, Total=9312 [2021-04-15 03:46:20,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36389 states. [2021-04-15 03:46:21,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36389 to 31831. [2021-04-15 03:46:21,089 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) [2021-04-15 03:46:21,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31831 states to 31831 states and 80454 transitions. [2021-04-15 03:46:21,146 INFO L78 Accepts]: Start accepts. Automaton has 31831 states and 80454 transitions. Word has length 40 [2021-04-15 03:46:21,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:46:21,146 INFO L480 AbstractCegarLoop]: Abstraction has 31831 states and 80454 transitions. [2021-04-15 03:46:21,146 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) [2021-04-15 03:46:21,146 INFO L276 IsEmpty]: Start isEmpty. Operand 31831 states and 80454 transitions. [2021-04-15 03:46:21,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:46:21,161 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:46:21,161 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:46:21,362 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3713,131 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:46:21,362 INFO L428 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:46:21,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:46:21,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1159168386, now seen corresponding path program 131 times [2021-04-15 03:46:21,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:46:21,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445311528] [2021-04-15 03:46:21,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:46:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:46:21,485 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 54 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:46:21,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445311528] [2021-04-15 03:46:21,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498508838] [2021-04-15 03:46:21,486 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 [2021-04-15 03:46:21,512 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-04-15 03:46:21,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:46:21,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:46:21,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:46:21,916 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 27 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:46:21,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:46:21,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17] total 28 [2021-04-15 03:46:21,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252689590] [2021-04-15 03:46:21,917 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-04-15 03:46:21,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:46:21,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-04-15 03:46:21,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=674, Unknown=0, NotChecked=0, Total=812 [2021-04-15 03:46:21,917 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) [2021-04-15 03:46:24,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:46:24,224 INFO L93 Difference]: Finished difference Result 37561 states and 93690 transitions. [2021-04-15 03:46:24,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-04-15 03:46:24,225 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 [2021-04-15 03:46:24,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:46:24,281 INFO L225 Difference]: With dead ends: 37561 [2021-04-15 03:46:24,281 INFO L226 Difference]: Without dead ends: 37541 [2021-04-15 03:46:24,282 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3190 ImplicationChecksByTransitivity, 1970.5ms TimeCoverageRelationStatistics Valid=2289, Invalid=7023, Unknown=0, NotChecked=0, Total=9312 [2021-04-15 03:46:24,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37541 states. [2021-04-15 03:46:24,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37541 to 32042. [2021-04-15 03:46:24,789 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) [2021-04-15 03:46:24,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32042 states to 32042 states and 81056 transitions. [2021-04-15 03:46:24,853 INFO L78 Accepts]: Start accepts. Automaton has 32042 states and 81056 transitions. Word has length 40 [2021-04-15 03:46:24,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:46:24,854 INFO L480 AbstractCegarLoop]: Abstraction has 32042 states and 81056 transitions. [2021-04-15 03:46:24,854 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) [2021-04-15 03:46:24,854 INFO L276 IsEmpty]: Start isEmpty. Operand 32042 states and 81056 transitions. [2021-04-15 03:46:24,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:46:24,871 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:46:24,871 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:46:25,072 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3714,132 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:46:25,072 INFO L428 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:46:25,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:46:25,072 INFO L82 PathProgramCache]: Analyzing trace with hash -475582470, now seen corresponding path program 132 times [2021-04-15 03:46:25,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:46:25,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856926052] [2021-04-15 03:46:25,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:46:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:46:25,215 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 27 proven. 57 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:46:25,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856926052] [2021-04-15 03:46:25,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087618746] [2021-04-15 03:46:25,216 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 [2021-04-15 03:46:25,242 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-04-15 03:46:25,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:46:25,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:46:25,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:46:25,674 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 25 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:46:25,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:46:25,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17] total 29 [2021-04-15 03:46:25,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900520884] [2021-04-15 03:46:25,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-04-15 03:46:25,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:46:25,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-04-15 03:46:25,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=724, Unknown=0, NotChecked=0, Total=870 [2021-04-15 03:46:25,675 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) [2021-04-15 03:46:28,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:46:28,183 INFO L93 Difference]: Finished difference Result 39838 states and 99403 transitions. [2021-04-15 03:46:28,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-04-15 03:46:28,184 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 [2021-04-15 03:46:28,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:46:28,238 INFO L225 Difference]: With dead ends: 39838 [2021-04-15 03:46:28,238 INFO L226 Difference]: Without dead ends: 39810 [2021-04-15 03:46:28,239 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3289 ImplicationChecksByTransitivity, 2186.9ms TimeCoverageRelationStatistics Valid=2297, Invalid=7405, Unknown=0, NotChecked=0, Total=9702 [2021-04-15 03:46:28,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39810 states. [2021-04-15 03:46:28,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39810 to 33837. [2021-04-15 03:46:28,769 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) [2021-04-15 03:46:28,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33837 states to 33837 states and 85808 transitions. [2021-04-15 03:46:28,829 INFO L78 Accepts]: Start accepts. Automaton has 33837 states and 85808 transitions. Word has length 40 [2021-04-15 03:46:28,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:46:28,829 INFO L480 AbstractCegarLoop]: Abstraction has 33837 states and 85808 transitions. [2021-04-15 03:46:28,829 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) [2021-04-15 03:46:28,829 INFO L276 IsEmpty]: Start isEmpty. Operand 33837 states and 85808 transitions. [2021-04-15 03:46:28,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:46:28,845 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:46:28,845 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:46:29,045 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 133 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3715 [2021-04-15 03:46:29,045 INFO L428 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:46:29,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:46:29,046 INFO L82 PathProgramCache]: Analyzing trace with hash -679513482, now seen corresponding path program 133 times [2021-04-15 03:46:29,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:46:29,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482868910] [2021-04-15 03:46:29,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:46:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:46:29,194 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 28 proven. 56 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:46:29,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482868910] [2021-04-15 03:46:29,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193571524] [2021-04-15 03:46:29,194 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 [2021-04-15 03:46:29,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:46:29,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:46:29,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:46:29,651 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 27 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:46:29,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:46:29,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17] total 30 [2021-04-15 03:46:29,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393900507] [2021-04-15 03:46:29,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-04-15 03:46:29,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:46:29,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-04-15 03:46:29,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=772, Unknown=0, NotChecked=0, Total=930 [2021-04-15 03:46:29,652 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) [2021-04-15 03:46:32,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:46:32,231 INFO L93 Difference]: Finished difference Result 43908 states and 109576 transitions. [2021-04-15 03:46:32,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-04-15 03:46:32,232 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 [2021-04-15 03:46:32,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:46:32,298 INFO L225 Difference]: With dead ends: 43908 [2021-04-15 03:46:32,298 INFO L226 Difference]: Without dead ends: 43872 [2021-04-15 03:46:32,299 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3564 ImplicationChecksByTransitivity, 2233.4ms TimeCoverageRelationStatistics Valid=2443, Invalid=8063, Unknown=0, NotChecked=0, Total=10506 [2021-04-15 03:46:32,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43872 states. [2021-04-15 03:46:32,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43872 to 40323. [2021-04-15 03:46:32,981 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) [2021-04-15 03:46:33,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40323 states to 40323 states and 102333 transitions. [2021-04-15 03:46:33,072 INFO L78 Accepts]: Start accepts. Automaton has 40323 states and 102333 transitions. Word has length 40 [2021-04-15 03:46:33,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:46:33,072 INFO L480 AbstractCegarLoop]: Abstraction has 40323 states and 102333 transitions. [2021-04-15 03:46:33,072 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) [2021-04-15 03:46:33,073 INFO L276 IsEmpty]: Start isEmpty. Operand 40323 states and 102333 transitions. [2021-04-15 03:46:33,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:46:33,096 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:46:33,096 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:46:33,296 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 134 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3716 [2021-04-15 03:46:33,296 INFO L428 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:46:33,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:46:33,297 INFO L82 PathProgramCache]: Analyzing trace with hash 911279602, now seen corresponding path program 134 times [2021-04-15 03:46:33,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:46:33,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584574592] [2021-04-15 03:46:33,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:46:33,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:46:33,664 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 33 proven. 51 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:46:33,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584574592] [2021-04-15 03:46:33,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413162537] [2021-04-15 03:46:33,664 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 [2021-04-15 03:46:33,687 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 03:46:33,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:46:33,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:46:33,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:46:34,155 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 33 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:46:34,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:46:34,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 31 [2021-04-15 03:46:34,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232462845] [2021-04-15 03:46:34,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-04-15 03:46:34,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:46:34,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-04-15 03:46:34,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=818, Unknown=0, NotChecked=0, Total=992 [2021-04-15 03:46:34,156 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) [2021-04-15 03:46:37,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:46:37,169 INFO L93 Difference]: Finished difference Result 50681 states and 126374 transitions. [2021-04-15 03:46:37,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-04-15 03:46:37,170 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 [2021-04-15 03:46:37,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:46:37,259 INFO L225 Difference]: With dead ends: 50681 [2021-04-15 03:46:37,259 INFO L226 Difference]: Without dead ends: 50637 [2021-04-15 03:46:37,260 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4059 ImplicationChecksByTransitivity, 2813.1ms TimeCoverageRelationStatistics Valid=2727, Invalid=9045, Unknown=0, NotChecked=0, Total=11772 [2021-04-15 03:46:37,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50637 states. [2021-04-15 03:46:38,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50637 to 46817. [2021-04-15 03:46:38,053 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) [2021-04-15 03:46:38,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46817 states to 46817 states and 118617 transitions. [2021-04-15 03:46:38,416 INFO L78 Accepts]: Start accepts. Automaton has 46817 states and 118617 transitions. Word has length 40 [2021-04-15 03:46:38,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:46:38,416 INFO L480 AbstractCegarLoop]: Abstraction has 46817 states and 118617 transitions. [2021-04-15 03:46:38,416 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) [2021-04-15 03:46:38,416 INFO L276 IsEmpty]: Start isEmpty. Operand 46817 states and 118617 transitions. [2021-04-15 03:46:38,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 03:46:38,437 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:46:38,437 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:46:38,637 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3717,135 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:46:38,638 INFO L428 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:46:38,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:46:38,638 INFO L82 PathProgramCache]: Analyzing trace with hash 655075950, now seen corresponding path program 135 times [2021-04-15 03:46:38,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:46:38,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268631126] [2021-04-15 03:46:38,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:46:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:46:38,821 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 43 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:46:38,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268631126] [2021-04-15 03:46:38,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916957885] [2021-04-15 03:46:38,821 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 [2021-04-15 03:46:38,847 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-04-15 03:46:38,847 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:46:38,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-04-15 03:46:38,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:46:39,318 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 43 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:46:39,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:46:39,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-04-15 03:46:39,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821009230] [2021-04-15 03:46:39,319 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-04-15 03:46:39,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:46:39,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-04-15 03:46:39,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=862, Unknown=0, NotChecked=0, Total=1056 [2021-04-15 03:46:39,319 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) [2021-04-15 03:46:42,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:46:42,586 INFO L93 Difference]: Finished difference Result 50538 states and 126417 transitions. [2021-04-15 03:46:42,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-04-15 03:46:42,587 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 [2021-04-15 03:46:42,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:46:42,674 INFO L225 Difference]: With dead ends: 50538 [2021-04-15 03:46:42,675 INFO L226 Difference]: Without dead ends: 50486 [2021-04-15 03:46:42,675 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4831 ImplicationChecksByTransitivity, 2906.0ms TimeCoverageRelationStatistics Valid=3147, Invalid=10425, Unknown=0, NotChecked=0, Total=13572 [2021-04-15 03:46:42,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50486 states. [2021-04-15 03:46:43,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50486 to 46981. [2021-04-15 03:46:43,558 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) [2021-04-15 03:46:43,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46981 states to 46981 states and 119175 transitions. [2021-04-15 03:46:43,813 INFO L78 Accepts]: Start accepts. Automaton has 46981 states and 119175 transitions. Word has length 40 [2021-04-15 03:46:43,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:46:43,813 INFO L480 AbstractCegarLoop]: Abstraction has 46981 states and 119175 transitions. [2021-04-15 03:46:43,813 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) [2021-04-15 03:46:43,813 INFO L276 IsEmpty]: Start isEmpty. Operand 46981 states and 119175 transitions. [2021-04-15 03:46:43,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-04-15 03:46:43,845 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:46:43,845 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:46:44,045 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 136 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3718 [2021-04-15 03:46:44,045 INFO L428 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:46:44,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:46:44,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1401589900, now seen corresponding path program 136 times [2021-04-15 03:46:44,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:46:44,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540127452] [2021-04-15 03:46:44,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:46:44,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:46:44,124 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:46:44,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540127452] [2021-04-15 03:46:44,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601544274] [2021-04-15 03:46:44,125 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 [2021-04-15 03:46:44,151 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 03:46:44,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:46:44,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 45 conjunts are in the unsatisfiable core [2021-04-15 03:46:44,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:46:44,576 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-04-15 03:46:44,577 INFO L354 Elim1Store]: treesize reduction 72, result has 57.4 percent of original size [2021-04-15 03:46:44,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2021-04-15 03:46:44,581 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:46:44,657 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:46:44,659 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:46:44,659 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:151, output treesize:422 [2021-04-15 03:46:46,996 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2021-04-15 03:46:48,127 WARN L205 SmtUtils]: Spent 996.00 ms on a formula simplification. DAG size of input: 621 DAG size of output: 621 [2021-04-15 03:46:49,777 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1196 [2021-04-15 03:46:50,886 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1196 [2021-04-15 03:46:52,558 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1196 [2021-04-15 03:47:11,674 WARN L205 SmtUtils]: Spent 12.59 s on a formula simplification. DAG size of input: 1196 DAG size of output: 58 [2021-04-15 03:47:13,451 INFO L354 Elim1Store]: treesize reduction 153, result has 9.5 percent of original size [2021-04-15 03:47:13,451 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 13 new quantified variables, introduced 21 case distinctions, treesize of input 223 treesize of output 86 [2021-04-15 03:47:13,454 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:13,759 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 111 [2021-04-15 03:47:13,759 INFO L628 ElimStorePlain]: treesize reduction 863, result has 37.2 percent of original size [2021-04-15 03:47:13,830 INFO L354 Elim1Store]: treesize reduction 151, result has 10.7 percent of original size [2021-04-15 03:47:13,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2021-04-15 03:47:13,833 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:13,916 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:47:14,091 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 50 [2021-04-15 03:47:14,092 INFO L354 Elim1Store]: treesize reduction 84, result has 50.3 percent of original size [2021-04-15 03:47:14,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2021-04-15 03:47:14,096 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:14,116 INFO L628 ElimStorePlain]: treesize reduction 334, result has 0.9 percent of original size [2021-04-15 03:47:14,116 INFO L518 ElimStorePlain]: Eliminatee v_prenex_133 vanished before elimination [2021-04-15 03:47:14,116 INFO L518 ElimStorePlain]: Eliminatee v_prenex_134 vanished before elimination [2021-04-15 03:47:14,116 INFO L518 ElimStorePlain]: Eliminatee v_prenex_135 vanished before elimination [2021-04-15 03:47:14,116 INFO L518 ElimStorePlain]: Eliminatee v_prenex_136 vanished before elimination [2021-04-15 03:47:14,117 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 7 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:47:14,117 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 14 variables, input treesize:1590, output treesize:3 [2021-04-15 03:47:14,127 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:47:14,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:47:14,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16] total 23 [2021-04-15 03:47:14,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518466127] [2021-04-15 03:47:14,128 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-04-15 03:47:14,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:47:14,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-04-15 03:47:14,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=450, Unknown=1, NotChecked=0, Total=506 [2021-04-15 03:47:14,128 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) [2021-04-15 03:47:16,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:47:16,017 INFO L93 Difference]: Finished difference Result 50920 states and 128844 transitions. [2021-04-15 03:47:16,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-04-15 03:47:16,018 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 [2021-04-15 03:47:16,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:47:16,102 INFO L225 Difference]: With dead ends: 50920 [2021-04-15 03:47:16,102 INFO L226 Difference]: Without dead ends: 50913 [2021-04-15 03:47:16,102 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 20446.3ms TimeCoverageRelationStatistics Valid=55, Invalid=450, Unknown=1, NotChecked=0, Total=506 [2021-04-15 03:47:16,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50913 states. [2021-04-15 03:47:16,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50913 to 49976. [2021-04-15 03:47:16,891 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) [2021-04-15 03:47:16,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49976 states to 49976 states and 127041 transitions. [2021-04-15 03:47:16,993 INFO L78 Accepts]: Start accepts. Automaton has 49976 states and 127041 transitions. Word has length 42 [2021-04-15 03:47:16,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:47:16,993 INFO L480 AbstractCegarLoop]: Abstraction has 49976 states and 127041 transitions. [2021-04-15 03:47:16,993 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) [2021-04-15 03:47:16,993 INFO L276 IsEmpty]: Start isEmpty. Operand 49976 states and 127041 transitions. [2021-04-15 03:47:17,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-04-15 03:47:17,024 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:47:17,024 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:47:17,224 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 137 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3719 [2021-04-15 03:47:17,225 INFO L428 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:47:17,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:47:17,225 INFO L82 PathProgramCache]: Analyzing trace with hash 631984244, now seen corresponding path program 137 times [2021-04-15 03:47:17,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:47:17,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101891969] [2021-04-15 03:47:17,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:47:17,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:47:17,308 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:47:17,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101891969] [2021-04-15 03:47:17,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027490501] [2021-04-15 03:47:17,309 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 [2021-04-15 03:47:17,335 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-04-15 03:47:17,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:47:17,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 51 conjunts are in the unsatisfiable core [2021-04-15 03:47:17,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:47:18,254 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 79 [2021-04-15 03:47:18,255 INFO L354 Elim1Store]: treesize reduction 751, result has 24.2 percent of original size [2021-04-15 03:47:18,255 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 [2021-04-15 03:47:18,260 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:18,350 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:47:18,351 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:47:18,351 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:187, output treesize:404 [2021-04-15 03:47:18,496 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-15 03:47:19,019 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-15 03:47:20,180 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2021-04-15 03:47:20,400 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:20,401 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 206 treesize of output 57 [2021-04-15 03:47:20,403 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:20,500 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:20,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:20,503 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:20,595 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:20,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:20,597 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:20,686 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:20,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 55 [2021-04-15 03:47:20,688 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:20,782 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:20,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:20,784 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:20,876 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:20,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:20,878 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:20,970 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:20,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:20,972 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:21,063 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:21,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:21,066 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:21,161 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:21,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:21,164 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:21,257 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:21,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:21,259 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:21,353 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:21,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:21,355 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:21,455 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:21,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:21,456 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:21,571 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:47:21,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:47:21,574 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:21,671 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:21,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:21,673 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:21,772 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:21,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:21,774 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:21,874 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:21,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 51 [2021-04-15 03:47:21,876 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:21,971 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:21,971 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 218 treesize of output 63 [2021-04-15 03:47:21,973 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:22,067 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:22,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:22,069 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:22,162 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:22,162 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 190 treesize of output 57 [2021-04-15 03:47:22,164 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:22,257 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:22,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:22,260 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:22,372 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:22,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 53 [2021-04-15 03:47:22,374 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:22,477 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:22,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:22,479 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:22,618 INFO L354 Elim1Store]: treesize reduction 113, result has 6.6 percent of original size [2021-04-15 03:47:22,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:22,621 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:22,717 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:22,718 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 203 treesize of output 58 [2021-04-15 03:47:22,720 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:22,829 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:22,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:22,832 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:22,939 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:22,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:22,942 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:23,040 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:23,040 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 172 treesize of output 51 [2021-04-15 03:47:23,042 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:23,150 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:23,150 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 206 treesize of output 57 [2021-04-15 03:47:23,153 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:23,282 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:23,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:23,285 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:23,383 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:23,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:23,386 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:23,486 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:23,486 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 184 treesize of output 55 [2021-04-15 03:47:23,488 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:23,592 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:23,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:23,594 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:23,700 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:23,700 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 208 treesize of output 59 [2021-04-15 03:47:23,702 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:23,809 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:23,809 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 214 treesize of output 61 [2021-04-15 03:47:23,811 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:23,916 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:23,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:23,919 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:24,026 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:24,027 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 210 treesize of output 61 [2021-04-15 03:47:24,029 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:24,137 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:24,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:24,139 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:24,244 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:24,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:24,247 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:24,349 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:24,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:24,352 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:24,456 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:24,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:24,459 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:24,565 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:24,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:24,567 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:24,679 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:24,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:24,681 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:24,791 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:24,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:24,794 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:24,900 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:24,901 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 11 new quantified variables, introduced 15 case distinctions, treesize of input 214 treesize of output 61 [2021-04-15 03:47:24,903 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:25,012 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:25,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 57 [2021-04-15 03:47:25,014 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:25,127 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:25,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:25,129 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:25,239 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:25,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:25,242 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:25,352 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:25,352 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 193 treesize of output 56 [2021-04-15 03:47:25,354 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:25,463 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:25,463 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 228 treesize of output 65 [2021-04-15 03:47:25,466 INFO L550 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:25,575 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:25,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:25,577 INFO L550 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:25,691 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:25,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:25,693 INFO L550 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:25,805 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:25,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:25,807 INFO L550 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:25,918 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:25,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:25,921 INFO L550 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:26,034 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:26,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:26,037 INFO L550 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:26,150 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:26,151 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 200 treesize of output 59 [2021-04-15 03:47:26,153 INFO L550 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:26,266 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:26,266 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 185 treesize of output 56 [2021-04-15 03:47:26,268 INFO L550 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:26,495 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:26,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:26,497 INFO L550 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:26,575 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:26,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 52 [2021-04-15 03:47:26,577 INFO L550 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:26,653 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:26,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:26,656 INFO L550 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:26,732 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:26,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:26,734 INFO L550 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:26,814 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:26,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:26,816 INFO L550 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:26,893 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:26,894 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 193 treesize of output 56 [2021-04-15 03:47:26,896 INFO L550 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:26,974 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:26,974 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 177 treesize of output 52 [2021-04-15 03:47:26,976 INFO L550 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:27,055 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:27,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:27,057 INFO L550 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:27,135 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:27,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:27,137 INFO L550 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:27,216 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:27,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 52 [2021-04-15 03:47:27,218 INFO L550 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:27,298 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:27,298 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 [2021-04-15 03:47:27,300 INFO L550 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:27,382 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:27,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:27,384 INFO L550 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:27,465 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:27,465 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 217 treesize of output 60 [2021-04-15 03:47:27,467 INFO L550 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:27,562 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:27,563 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 205 treesize of output 60 [2021-04-15 03:47:27,565 INFO L550 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:27,653 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:27,653 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 205 treesize of output 60 [2021-04-15 03:47:27,655 INFO L550 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:27,743 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:27,743 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 193 treesize of output 56 [2021-04-15 03:47:27,745 INFO L550 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:27,837 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:27,838 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 198 treesize of output 57 [2021-04-15 03:47:27,839 INFO L550 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:27,929 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:27,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 52 [2021-04-15 03:47:27,931 INFO L550 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:28,024 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:28,024 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 198 treesize of output 57 [2021-04-15 03:47:28,026 INFO L550 ElimStorePlain]: Start of recursive call 76: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:28,123 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:28,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:28,125 INFO L550 ElimStorePlain]: Start of recursive call 77: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:28,217 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:28,218 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 204 treesize of output 59 [2021-04-15 03:47:28,220 INFO L550 ElimStorePlain]: Start of recursive call 78: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:28,313 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:28,313 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 205 treesize of output 60 [2021-04-15 03:47:28,315 INFO L550 ElimStorePlain]: Start of recursive call 79: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:28,405 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:28,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:28,408 INFO L550 ElimStorePlain]: Start of recursive call 80: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:28,498 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:28,499 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 210 treesize of output 61 [2021-04-15 03:47:28,501 INFO L550 ElimStorePlain]: Start of recursive call 81: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:28,594 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:28,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:28,596 INFO L550 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:28,689 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:28,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 55 [2021-04-15 03:47:28,691 INFO L550 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:28,804 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:47:28,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:47:28,807 INFO L550 ElimStorePlain]: Start of recursive call 84: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:28,899 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:28,900 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 188 treesize of output 55 [2021-04-15 03:47:28,901 INFO L550 ElimStorePlain]: Start of recursive call 85: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:29,006 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:29,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:29,008 INFO L550 ElimStorePlain]: Start of recursive call 86: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:29,104 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:29,105 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 200 treesize of output 59 [2021-04-15 03:47:29,107 INFO L550 ElimStorePlain]: Start of recursive call 87: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:29,202 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:29,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:29,205 INFO L550 ElimStorePlain]: Start of recursive call 88: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:29,300 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:29,300 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 219 treesize of output 62 [2021-04-15 03:47:29,303 INFO L550 ElimStorePlain]: Start of recursive call 89: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:29,398 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:29,399 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 230 treesize of output 65 [2021-04-15 03:47:29,401 INFO L550 ElimStorePlain]: Start of recursive call 90: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:29,498 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:29,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:29,500 INFO L550 ElimStorePlain]: Start of recursive call 91: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:29,598 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:29,598 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 219 treesize of output 62 [2021-04-15 03:47:29,600 INFO L550 ElimStorePlain]: Start of recursive call 92: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:29,717 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:47:29,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:47:29,719 INFO L550 ElimStorePlain]: Start of recursive call 93: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:29,815 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:29,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:29,824 INFO L550 ElimStorePlain]: Start of recursive call 94: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:29,922 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:29,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:29,925 INFO L550 ElimStorePlain]: Start of recursive call 95: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:30,022 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:30,022 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 203 treesize of output 58 [2021-04-15 03:47:30,024 INFO L550 ElimStorePlain]: Start of recursive call 96: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:30,124 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:30,124 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 211 treesize of output 62 [2021-04-15 03:47:30,127 INFO L550 ElimStorePlain]: Start of recursive call 97: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:30,239 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:30,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:30,242 INFO L550 ElimStorePlain]: Start of recursive call 98: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:30,345 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:30,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:30,347 INFO L550 ElimStorePlain]: Start of recursive call 99: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:30,451 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:30,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:30,454 INFO L550 ElimStorePlain]: Start of recursive call 100: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:30,556 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:30,556 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 172 treesize of output 51 [2021-04-15 03:47:30,558 INFO L550 ElimStorePlain]: Start of recursive call 101: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:30,662 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:30,663 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 212 treesize of output 59 [2021-04-15 03:47:30,665 INFO L550 ElimStorePlain]: Start of recursive call 102: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:30,773 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:30,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:30,776 INFO L550 ElimStorePlain]: Start of recursive call 103: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:30,880 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:30,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:30,883 INFO L550 ElimStorePlain]: Start of recursive call 104: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:30,988 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:30,989 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 211 treesize of output 60 [2021-04-15 03:47:30,991 INFO L550 ElimStorePlain]: Start of recursive call 105: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:31,097 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:31,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:31,100 INFO L550 ElimStorePlain]: Start of recursive call 106: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:31,229 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:47:31,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:47:31,233 INFO L550 ElimStorePlain]: Start of recursive call 107: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:31,341 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:31,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:31,344 INFO L550 ElimStorePlain]: Start of recursive call 108: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:31,453 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:31,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:31,455 INFO L550 ElimStorePlain]: Start of recursive call 109: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:31,564 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:31,564 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 169 treesize of output 52 [2021-04-15 03:47:31,566 INFO L550 ElimStorePlain]: Start of recursive call 110: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:31,675 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:31,675 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 206 treesize of output 57 [2021-04-15 03:47:31,683 INFO L550 ElimStorePlain]: Start of recursive call 111: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:31,793 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:31,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:31,796 INFO L550 ElimStorePlain]: Start of recursive call 112: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:31,907 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:31,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:31,909 INFO L550 ElimStorePlain]: Start of recursive call 113: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:32,022 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:32,023 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 205 treesize of output 60 [2021-04-15 03:47:32,025 INFO L550 ElimStorePlain]: Start of recursive call 114: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:32,128 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:32,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:32,131 INFO L550 ElimStorePlain]: Start of recursive call 115: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:32,235 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:32,235 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 210 treesize of output 61 [2021-04-15 03:47:32,237 INFO L550 ElimStorePlain]: Start of recursive call 116: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:32,344 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:32,344 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 212 treesize of output 59 [2021-04-15 03:47:32,346 INFO L550 ElimStorePlain]: Start of recursive call 117: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:32,470 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:47:32,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:47:32,473 INFO L550 ElimStorePlain]: Start of recursive call 118: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:32,590 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:32,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:32,593 INFO L550 ElimStorePlain]: Start of recursive call 119: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:32,698 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:32,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:32,700 INFO L550 ElimStorePlain]: Start of recursive call 120: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:32,811 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:32,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:32,813 INFO L550 ElimStorePlain]: Start of recursive call 121: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:32,924 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:32,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:32,926 INFO L550 ElimStorePlain]: Start of recursive call 122: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:33,036 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:33,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 53 [2021-04-15 03:47:33,038 INFO L550 ElimStorePlain]: Start of recursive call 123: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:33,146 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:33,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:33,148 INFO L550 ElimStorePlain]: Start of recursive call 124: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:33,257 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:33,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:33,259 INFO L550 ElimStorePlain]: Start of recursive call 125: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:33,371 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:33,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:33,373 INFO L550 ElimStorePlain]: Start of recursive call 126: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:33,489 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:33,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 167 treesize of output 50 [2021-04-15 03:47:33,491 INFO L550 ElimStorePlain]: Start of recursive call 127: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:33,604 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:33,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 56 [2021-04-15 03:47:33,606 INFO L550 ElimStorePlain]: Start of recursive call 128: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:33,716 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:33,717 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 219 treesize of output 62 [2021-04-15 03:47:33,718 INFO L550 ElimStorePlain]: Start of recursive call 129: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:33,830 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:33,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 56 [2021-04-15 03:47:33,832 INFO L550 ElimStorePlain]: Start of recursive call 130: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:33,945 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:33,945 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 186 treesize of output 53 [2021-04-15 03:47:33,947 INFO L550 ElimStorePlain]: Start of recursive call 131: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:34,061 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:34,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 57 [2021-04-15 03:47:34,063 INFO L550 ElimStorePlain]: Start of recursive call 132: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:34,196 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:47:34,196 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 211 treesize of output 66 [2021-04-15 03:47:34,198 INFO L550 ElimStorePlain]: Start of recursive call 133: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:34,314 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:34,314 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 195 treesize of output 58 [2021-04-15 03:47:34,316 INFO L550 ElimStorePlain]: Start of recursive call 134: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:34,431 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:34,431 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 185 treesize of output 56 [2021-04-15 03:47:34,433 INFO L550 ElimStorePlain]: Start of recursive call 135: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:34,549 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:34,549 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 215 treesize of output 62 [2021-04-15 03:47:34,551 INFO L550 ElimStorePlain]: Start of recursive call 136: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:34,666 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:34,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:34,668 INFO L550 ElimStorePlain]: Start of recursive call 137: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:34,781 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:34,782 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 221 treesize of output 64 [2021-04-15 03:47:34,784 INFO L550 ElimStorePlain]: Start of recursive call 138: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:34,898 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:34,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:34,900 INFO L550 ElimStorePlain]: Start of recursive call 139: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:35,017 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:35,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:35,020 INFO L550 ElimStorePlain]: Start of recursive call 140: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:35,182 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:35,182 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 206 treesize of output 57 [2021-04-15 03:47:35,184 INFO L550 ElimStorePlain]: Start of recursive call 141: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:35,300 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:35,300 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 179 treesize of output 54 [2021-04-15 03:47:35,302 INFO L550 ElimStorePlain]: Start of recursive call 142: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:35,420 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:35,420 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 199 treesize of output 58 [2021-04-15 03:47:35,422 INFO L550 ElimStorePlain]: Start of recursive call 143: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:35,550 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:35,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:35,552 INFO L550 ElimStorePlain]: Start of recursive call 144: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:35,669 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:35,669 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 188 treesize of output 55 [2021-04-15 03:47:35,671 INFO L550 ElimStorePlain]: Start of recursive call 145: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:35,790 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:35,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:35,792 INFO L550 ElimStorePlain]: Start of recursive call 146: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:35,908 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:35,909 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 224 treesize of output 63 [2021-04-15 03:47:35,911 INFO L550 ElimStorePlain]: Start of recursive call 147: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:36,029 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:36,030 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 196 treesize of output 55 [2021-04-15 03:47:36,031 INFO L550 ElimStorePlain]: Start of recursive call 148: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:36,152 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:36,152 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 203 treesize of output 58 [2021-04-15 03:47:36,154 INFO L550 ElimStorePlain]: Start of recursive call 149: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:36,279 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:36,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:36,282 INFO L550 ElimStorePlain]: Start of recursive call 150: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:36,400 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:36,400 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 242 treesize of output 65 [2021-04-15 03:47:36,403 INFO L550 ElimStorePlain]: Start of recursive call 151: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:36,520 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:36,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:36,522 INFO L550 ElimStorePlain]: Start of recursive call 152: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:36,641 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:36,641 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 229 treesize of output 64 [2021-04-15 03:47:36,643 INFO L550 ElimStorePlain]: Start of recursive call 153: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:36,763 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:36,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:36,766 INFO L550 ElimStorePlain]: Start of recursive call 154: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:36,885 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:36,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:36,887 INFO L550 ElimStorePlain]: Start of recursive call 155: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:37,006 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:37,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:37,008 INFO L550 ElimStorePlain]: Start of recursive call 156: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:37,128 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:37,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:37,130 INFO L550 ElimStorePlain]: Start of recursive call 157: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:37,250 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:37,251 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 233 treesize of output 66 [2021-04-15 03:47:37,253 INFO L550 ElimStorePlain]: Start of recursive call 158: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:37,376 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:37,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:37,379 INFO L550 ElimStorePlain]: Start of recursive call 159: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:37,522 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:37,522 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 209 treesize of output 60 [2021-04-15 03:47:37,524 INFO L550 ElimStorePlain]: Start of recursive call 160: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:37,644 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:37,644 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 183 treesize of output 54 [2021-04-15 03:47:37,646 INFO L550 ElimStorePlain]: Start of recursive call 161: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:37,764 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:37,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:37,766 INFO L550 ElimStorePlain]: Start of recursive call 162: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:37,887 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:37,887 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 204 treesize of output 59 [2021-04-15 03:47:37,889 INFO L550 ElimStorePlain]: Start of recursive call 163: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:38,010 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:38,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:38,012 INFO L550 ElimStorePlain]: Start of recursive call 164: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:38,133 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:38,133 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 212 treesize of output 59 [2021-04-15 03:47:38,135 INFO L550 ElimStorePlain]: Start of recursive call 165: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:38,257 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:38,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:38,259 INFO L550 ElimStorePlain]: Start of recursive call 166: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:38,381 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:38,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:38,383 INFO L550 ElimStorePlain]: Start of recursive call 167: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:38,507 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:38,507 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 214 treesize of output 61 [2021-04-15 03:47:38,509 INFO L550 ElimStorePlain]: Start of recursive call 168: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:38,632 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:38,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:38,634 INFO L550 ElimStorePlain]: Start of recursive call 169: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:38,757 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:38,758 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 198 treesize of output 57 [2021-04-15 03:47:38,759 INFO L550 ElimStorePlain]: Start of recursive call 170: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:38,884 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:38,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:38,887 INFO L550 ElimStorePlain]: Start of recursive call 171: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:39,011 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:39,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 52 [2021-04-15 03:47:39,013 INFO L550 ElimStorePlain]: Start of recursive call 172: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:39,137 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:39,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 53 [2021-04-15 03:47:39,140 INFO L550 ElimStorePlain]: Start of recursive call 173: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:39,264 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:39,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:39,266 INFO L550 ElimStorePlain]: Start of recursive call 174: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:39,390 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:39,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:39,392 INFO L550 ElimStorePlain]: Start of recursive call 175: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:39,529 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:39,529 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 208 treesize of output 59 [2021-04-15 03:47:39,531 INFO L550 ElimStorePlain]: Start of recursive call 176: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:39,778 INFO L244 Elim1Store]: Index analysis took 186 ms [2021-04-15 03:47:39,788 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:39,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:39,790 INFO L550 ElimStorePlain]: Start of recursive call 177: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:39,854 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:39,854 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 177 treesize of output 52 [2021-04-15 03:47:39,856 INFO L550 ElimStorePlain]: Start of recursive call 178: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:39,921 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:39,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:39,923 INFO L550 ElimStorePlain]: Start of recursive call 179: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:40,007 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:47:40,007 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 216 treesize of output 67 [2021-04-15 03:47:40,010 INFO L550 ElimStorePlain]: Start of recursive call 180: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:40,074 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:40,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:40,076 INFO L550 ElimStorePlain]: Start of recursive call 181: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:40,142 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:40,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 58 [2021-04-15 03:47:40,145 INFO L550 ElimStorePlain]: Start of recursive call 182: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:40,212 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:40,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:40,215 INFO L550 ElimStorePlain]: Start of recursive call 183: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:40,288 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:40,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:40,290 INFO L550 ElimStorePlain]: Start of recursive call 184: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:40,372 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:40,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:40,375 INFO L550 ElimStorePlain]: Start of recursive call 185: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:40,458 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:40,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:40,460 INFO L550 ElimStorePlain]: Start of recursive call 186: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:40,542 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:40,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:40,545 INFO L550 ElimStorePlain]: Start of recursive call 187: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:40,625 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:40,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:40,628 INFO L550 ElimStorePlain]: Start of recursive call 188: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:40,701 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:40,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:40,703 INFO L550 ElimStorePlain]: Start of recursive call 189: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:40,774 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:40,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:40,776 INFO L550 ElimStorePlain]: Start of recursive call 190: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:40,849 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:40,849 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 210 treesize of output 61 [2021-04-15 03:47:40,851 INFO L550 ElimStorePlain]: Start of recursive call 191: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:40,924 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:40,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:40,926 INFO L550 ElimStorePlain]: Start of recursive call 192: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:40,998 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:40,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:41,001 INFO L550 ElimStorePlain]: Start of recursive call 193: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:41,075 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:41,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:41,077 INFO L550 ElimStorePlain]: Start of recursive call 194: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:41,151 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:41,151 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 195 treesize of output 58 [2021-04-15 03:47:41,153 INFO L550 ElimStorePlain]: Start of recursive call 195: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:41,226 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:41,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:41,229 INFO L550 ElimStorePlain]: Start of recursive call 196: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:41,307 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:41,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:41,309 INFO L550 ElimStorePlain]: Start of recursive call 197: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:41,412 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:47:41,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:47:41,415 INFO L550 ElimStorePlain]: Start of recursive call 198: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:41,491 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:41,491 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 205 treesize of output 60 [2021-04-15 03:47:41,493 INFO L550 ElimStorePlain]: Start of recursive call 199: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:41,569 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:41,569 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 219 treesize of output 62 [2021-04-15 03:47:41,571 INFO L550 ElimStorePlain]: Start of recursive call 200: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:41,647 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:41,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:41,650 INFO L550 ElimStorePlain]: Start of recursive call 201: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:41,726 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:41,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:41,728 INFO L550 ElimStorePlain]: Start of recursive call 202: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:41,805 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:41,805 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 193 treesize of output 56 [2021-04-15 03:47:41,807 INFO L550 ElimStorePlain]: Start of recursive call 203: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:41,885 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:41,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:41,887 INFO L550 ElimStorePlain]: Start of recursive call 204: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:41,965 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:41,965 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 225 treesize of output 64 [2021-04-15 03:47:41,967 INFO L550 ElimStorePlain]: Start of recursive call 205: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:42,045 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:42,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:42,047 INFO L550 ElimStorePlain]: Start of recursive call 206: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:42,125 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:42,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:42,127 INFO L550 ElimStorePlain]: Start of recursive call 207: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:42,225 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:47:42,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:47:42,228 INFO L550 ElimStorePlain]: Start of recursive call 208: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:42,306 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:42,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:42,308 INFO L550 ElimStorePlain]: Start of recursive call 209: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:42,390 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:42,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:42,392 INFO L550 ElimStorePlain]: Start of recursive call 210: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:42,472 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:42,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:42,475 INFO L550 ElimStorePlain]: Start of recursive call 211: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:42,556 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:42,556 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 185 treesize of output 56 [2021-04-15 03:47:42,559 INFO L550 ElimStorePlain]: Start of recursive call 212: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:42,639 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:42,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:42,641 INFO L550 ElimStorePlain]: Start of recursive call 213: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:42,721 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:42,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:42,724 INFO L550 ElimStorePlain]: Start of recursive call 214: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:42,805 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:42,805 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 188 treesize of output 55 [2021-04-15 03:47:42,807 INFO L550 ElimStorePlain]: Start of recursive call 215: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:42,888 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:42,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:42,890 INFO L550 ElimStorePlain]: Start of recursive call 216: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:42,971 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:42,971 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 201 treesize of output 58 [2021-04-15 03:47:42,973 INFO L550 ElimStorePlain]: Start of recursive call 217: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:43,055 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:43,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:43,057 INFO L550 ElimStorePlain]: Start of recursive call 218: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:43,141 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:43,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:43,143 INFO L550 ElimStorePlain]: Start of recursive call 219: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:43,227 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:43,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 53 [2021-04-15 03:47:43,229 INFO L550 ElimStorePlain]: Start of recursive call 220: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:43,313 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:43,313 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 219 treesize of output 62 [2021-04-15 03:47:43,315 INFO L550 ElimStorePlain]: Start of recursive call 221: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:43,404 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:43,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 167 treesize of output 50 [2021-04-15 03:47:43,406 INFO L550 ElimStorePlain]: Start of recursive call 222: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:43,491 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:43,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:43,494 INFO L550 ElimStorePlain]: Start of recursive call 223: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:43,578 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:43,578 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 237 treesize of output 64 [2021-04-15 03:47:43,580 INFO L550 ElimStorePlain]: Start of recursive call 224: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:43,666 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:43,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:43,668 INFO L550 ElimStorePlain]: Start of recursive call 225: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:43,753 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:43,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:43,756 INFO L550 ElimStorePlain]: Start of recursive call 226: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:43,841 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:43,842 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 198 treesize of output 57 [2021-04-15 03:47:43,844 INFO L550 ElimStorePlain]: Start of recursive call 227: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:43,929 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:43,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:43,931 INFO L550 ElimStorePlain]: Start of recursive call 228: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:44,017 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:44,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:44,020 INFO L550 ElimStorePlain]: Start of recursive call 229: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:44,106 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:44,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:44,108 INFO L550 ElimStorePlain]: Start of recursive call 230: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:44,196 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:44,196 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 193 treesize of output 56 [2021-04-15 03:47:44,198 INFO L550 ElimStorePlain]: Start of recursive call 231: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:44,285 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:44,285 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 232 treesize of output 63 [2021-04-15 03:47:44,287 INFO L550 ElimStorePlain]: Start of recursive call 232: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:44,375 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:44,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:44,377 INFO L550 ElimStorePlain]: Start of recursive call 233: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:44,484 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:47:44,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:47:44,487 INFO L550 ElimStorePlain]: Start of recursive call 234: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:44,577 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:44,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 59 [2021-04-15 03:47:44,579 INFO L550 ElimStorePlain]: Start of recursive call 235: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:44,667 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:44,667 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 222 treesize of output 61 [2021-04-15 03:47:44,669 INFO L550 ElimStorePlain]: Start of recursive call 236: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:44,758 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:44,759 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 223 treesize of output 64 [2021-04-15 03:47:44,761 INFO L550 ElimStorePlain]: Start of recursive call 237: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:44,851 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:44,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 53 [2021-04-15 03:47:44,853 INFO L550 ElimStorePlain]: Start of recursive call 238: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:44,942 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:44,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:44,944 INFO L550 ElimStorePlain]: Start of recursive call 239: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:45,034 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:45,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:45,037 INFO L550 ElimStorePlain]: Start of recursive call 240: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:45,126 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:45,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:45,128 INFO L550 ElimStorePlain]: Start of recursive call 241: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:45,217 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:45,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:45,219 INFO L550 ElimStorePlain]: Start of recursive call 242: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:45,309 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:45,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:45,311 INFO L550 ElimStorePlain]: Start of recursive call 243: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:45,402 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:45,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 51 [2021-04-15 03:47:45,404 INFO L550 ElimStorePlain]: Start of recursive call 244: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:45,496 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:45,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:45,498 INFO L550 ElimStorePlain]: Start of recursive call 245: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:45,589 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:45,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:45,591 INFO L550 ElimStorePlain]: Start of recursive call 246: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:45,682 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:45,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:45,684 INFO L550 ElimStorePlain]: Start of recursive call 247: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:45,774 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:45,775 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 218 treesize of output 63 [2021-04-15 03:47:45,777 INFO L550 ElimStorePlain]: Start of recursive call 248: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:45,869 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:45,869 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 209 treesize of output 60 [2021-04-15 03:47:45,871 INFO L550 ElimStorePlain]: Start of recursive call 249: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:45,966 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:45,967 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 [2021-04-15 03:47:45,968 INFO L550 ElimStorePlain]: Start of recursive call 250: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:46,059 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:46,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:46,062 INFO L550 ElimStorePlain]: Start of recursive call 251: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:46,153 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:46,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:46,156 INFO L550 ElimStorePlain]: Start of recursive call 252: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:46,247 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:46,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:46,249 INFO L550 ElimStorePlain]: Start of recursive call 253: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:46,361 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:47:46,361 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 221 treesize of output 68 [2021-04-15 03:47:46,364 INFO L550 ElimStorePlain]: Start of recursive call 254: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:46,485 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:47:46,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:47:46,488 INFO L550 ElimStorePlain]: Start of recursive call 255: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:46,580 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:46,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:46,582 INFO L550 ElimStorePlain]: Start of recursive call 256: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:46,674 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:46,674 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 177 treesize of output 52 [2021-04-15 03:47:46,676 INFO L550 ElimStorePlain]: Start of recursive call 257: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:46,769 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:46,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:46,772 INFO L550 ElimStorePlain]: Start of recursive call 258: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:46,865 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:46,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 54 [2021-04-15 03:47:46,868 INFO L550 ElimStorePlain]: Start of recursive call 259: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:46,963 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:46,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:46,965 INFO L550 ElimStorePlain]: Start of recursive call 260: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:47,059 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:47,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:47,061 INFO L550 ElimStorePlain]: Start of recursive call 261: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:47,145 INFO L354 Elim1Store]: treesize reduction 80, result has 1.2 percent of original size [2021-04-15 03:47:47,145 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 162 treesize of output 46 [2021-04-15 03:47:47,147 INFO L550 ElimStorePlain]: Start of recursive call 262: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:47,241 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:47,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:47,244 INFO L550 ElimStorePlain]: Start of recursive call 263: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:47,345 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:47,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:47,348 INFO L550 ElimStorePlain]: Start of recursive call 264: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:47,439 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:47,440 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 198 treesize of output 57 [2021-04-15 03:47:47,442 INFO L550 ElimStorePlain]: Start of recursive call 265: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:47,535 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:47,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:47,537 INFO L550 ElimStorePlain]: Start of recursive call 266: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:47,630 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:47,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:47,632 INFO L550 ElimStorePlain]: Start of recursive call 267: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:47,725 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:47,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:47,727 INFO L550 ElimStorePlain]: Start of recursive call 268: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:47,821 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:47,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:47,823 INFO L550 ElimStorePlain]: Start of recursive call 269: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:47,917 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:47,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:47,919 INFO L550 ElimStorePlain]: Start of recursive call 270: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:48,013 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:48,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:48,015 INFO L550 ElimStorePlain]: Start of recursive call 271: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:48,110 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:48,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:48,112 INFO L550 ElimStorePlain]: Start of recursive call 272: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:48,207 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:48,207 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 195 treesize of output 58 [2021-04-15 03:47:48,209 INFO L550 ElimStorePlain]: Start of recursive call 273: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:48,304 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:48,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:48,306 INFO L550 ElimStorePlain]: Start of recursive call 274: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:48,402 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:48,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:48,405 INFO L550 ElimStorePlain]: Start of recursive call 275: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:48,506 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:48,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 52 [2021-04-15 03:47:48,509 INFO L550 ElimStorePlain]: Start of recursive call 276: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:48,605 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:48,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:48,608 INFO L550 ElimStorePlain]: Start of recursive call 277: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:48,703 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:48,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:48,705 INFO L550 ElimStorePlain]: Start of recursive call 278: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:48,800 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:48,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:48,803 INFO L550 ElimStorePlain]: Start of recursive call 279: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:48,899 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:48,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:48,901 INFO L550 ElimStorePlain]: Start of recursive call 280: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:48,997 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:48,997 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 195 treesize of output 58 [2021-04-15 03:47:49,000 INFO L550 ElimStorePlain]: Start of recursive call 281: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:49,114 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:49,115 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 190 treesize of output 57 [2021-04-15 03:47:49,118 INFO L550 ElimStorePlain]: Start of recursive call 282: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:49,217 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:49,218 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 193 treesize of output 56 [2021-04-15 03:47:49,220 INFO L550 ElimStorePlain]: Start of recursive call 283: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:49,316 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:49,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 54 [2021-04-15 03:47:49,318 INFO L550 ElimStorePlain]: Start of recursive call 284: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:49,414 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:49,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:49,416 INFO L550 ElimStorePlain]: Start of recursive call 285: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:49,512 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:49,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:49,514 INFO L550 ElimStorePlain]: Start of recursive call 286: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:49,611 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:49,611 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 198 treesize of output 57 [2021-04-15 03:47:49,613 INFO L550 ElimStorePlain]: Start of recursive call 287: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:49,709 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:49,709 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 177 treesize of output 52 [2021-04-15 03:47:49,711 INFO L550 ElimStorePlain]: Start of recursive call 288: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:49,808 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:49,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:49,810 INFO L550 ElimStorePlain]: Start of recursive call 289: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:49,908 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:49,909 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 191 treesize of output 54 [2021-04-15 03:47:49,910 INFO L550 ElimStorePlain]: Start of recursive call 290: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:50,008 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:50,008 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 198 treesize of output 57 [2021-04-15 03:47:50,010 INFO L550 ElimStorePlain]: Start of recursive call 291: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:50,108 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:50,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:50,110 INFO L550 ElimStorePlain]: Start of recursive call 292: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:50,207 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:50,207 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 208 treesize of output 61 [2021-04-15 03:47:50,209 INFO L550 ElimStorePlain]: Start of recursive call 293: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:50,307 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:50,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:50,309 INFO L550 ElimStorePlain]: Start of recursive call 294: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:50,411 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:50,411 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 201 treesize of output 56 [2021-04-15 03:47:50,413 INFO L550 ElimStorePlain]: Start of recursive call 295: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:50,512 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:50,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:50,514 INFO L550 ElimStorePlain]: Start of recursive call 296: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:50,615 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:50,615 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 216 treesize of output 63 [2021-04-15 03:47:50,617 INFO L550 ElimStorePlain]: Start of recursive call 297: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:50,716 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:50,716 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 218 treesize of output 63 [2021-04-15 03:47:50,718 INFO L550 ElimStorePlain]: Start of recursive call 298: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:50,818 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:50,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 54 [2021-04-15 03:47:50,821 INFO L550 ElimStorePlain]: Start of recursive call 299: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:50,923 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:50,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:50,925 INFO L550 ElimStorePlain]: Start of recursive call 300: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:51,025 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:51,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 53 [2021-04-15 03:47:51,028 INFO L550 ElimStorePlain]: Start of recursive call 301: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:51,128 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:51,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:51,130 INFO L550 ElimStorePlain]: Start of recursive call 302: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:51,229 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:51,230 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 196 treesize of output 57 [2021-04-15 03:47:51,231 INFO L550 ElimStorePlain]: Start of recursive call 303: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:51,333 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:51,334 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 190 treesize of output 57 [2021-04-15 03:47:51,336 INFO L550 ElimStorePlain]: Start of recursive call 304: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:51,437 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:51,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:51,439 INFO L550 ElimStorePlain]: Start of recursive call 305: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:51,538 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:51,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:51,541 INFO L550 ElimStorePlain]: Start of recursive call 306: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:51,647 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:51,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 51 [2021-04-15 03:47:51,649 INFO L550 ElimStorePlain]: Start of recursive call 307: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:51,750 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:51,750 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 215 treesize of output 62 [2021-04-15 03:47:51,752 INFO L550 ElimStorePlain]: Start of recursive call 308: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:51,855 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:51,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:51,857 INFO L550 ElimStorePlain]: Start of recursive call 309: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:51,957 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:51,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:51,959 INFO L550 ElimStorePlain]: Start of recursive call 310: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:52,060 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:52,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:52,062 INFO L550 ElimStorePlain]: Start of recursive call 311: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:52,164 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:52,164 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 219 treesize of output 62 [2021-04-15 03:47:52,166 INFO L550 ElimStorePlain]: Start of recursive call 312: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:52,267 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:52,268 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 179 treesize of output 54 [2021-04-15 03:47:52,270 INFO L550 ElimStorePlain]: Start of recursive call 313: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:52,371 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:52,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:52,373 INFO L550 ElimStorePlain]: Start of recursive call 314: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:52,475 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:52,476 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 198 treesize of output 57 [2021-04-15 03:47:52,479 INFO L550 ElimStorePlain]: Start of recursive call 315: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:52,579 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:52,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:52,582 INFO L550 ElimStorePlain]: Start of recursive call 316: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:52,681 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:52,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:52,684 INFO L550 ElimStorePlain]: Start of recursive call 317: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:52,783 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:52,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:52,785 INFO L550 ElimStorePlain]: Start of recursive call 318: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:52,885 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:52,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:52,887 INFO L550 ElimStorePlain]: Start of recursive call 319: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:52,987 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:52,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:52,990 INFO L550 ElimStorePlain]: Start of recursive call 320: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:53,089 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:53,089 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 198 treesize of output 57 [2021-04-15 03:47:53,092 INFO L550 ElimStorePlain]: Start of recursive call 321: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:53,196 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:53,196 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 193 treesize of output 56 [2021-04-15 03:47:53,198 INFO L550 ElimStorePlain]: Start of recursive call 322: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:53,301 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:53,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:53,303 INFO L550 ElimStorePlain]: Start of recursive call 323: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:53,405 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:53,406 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 211 treesize of output 62 [2021-04-15 03:47:53,407 INFO L550 ElimStorePlain]: Start of recursive call 324: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:53,610 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:53,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:53,612 INFO L550 ElimStorePlain]: Start of recursive call 325: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:53,665 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:53,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:53,667 INFO L550 ElimStorePlain]: Start of recursive call 326: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:53,721 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:53,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:53,724 INFO L550 ElimStorePlain]: Start of recursive call 327: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:53,777 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:53,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:53,780 INFO L550 ElimStorePlain]: Start of recursive call 328: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:53,833 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:53,834 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 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-04-15 03:47:53,836 INFO L550 ElimStorePlain]: Start of recursive call 329: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:53,890 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:53,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:53,892 INFO L550 ElimStorePlain]: Start of recursive call 330: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:53,946 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:53,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:53,948 INFO L550 ElimStorePlain]: Start of recursive call 331: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:54,020 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:47:54,021 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 231 treesize of output 70 [2021-04-15 03:47:54,024 INFO L550 ElimStorePlain]: Start of recursive call 332: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:54,079 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:54,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:54,081 INFO L550 ElimStorePlain]: Start of recursive call 333: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:54,135 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:54,136 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 220 treesize of output 63 [2021-04-15 03:47:54,137 INFO L550 ElimStorePlain]: Start of recursive call 334: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:54,192 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:54,192 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 219 treesize of output 62 [2021-04-15 03:47:54,194 INFO L550 ElimStorePlain]: Start of recursive call 335: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:54,247 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:54,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:54,250 INFO L550 ElimStorePlain]: Start of recursive call 336: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:54,305 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:54,305 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 188 treesize of output 55 [2021-04-15 03:47:54,307 INFO L550 ElimStorePlain]: Start of recursive call 337: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:54,361 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:54,362 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 211 treesize of output 58 [2021-04-15 03:47:54,364 INFO L550 ElimStorePlain]: Start of recursive call 338: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:54,419 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:54,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:54,421 INFO L550 ElimStorePlain]: Start of recursive call 339: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:54,476 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:54,476 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 201 treesize of output 58 [2021-04-15 03:47:54,478 INFO L550 ElimStorePlain]: Start of recursive call 340: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:54,533 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:54,533 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 226 treesize of output 65 [2021-04-15 03:47:54,535 INFO L550 ElimStorePlain]: Start of recursive call 341: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:54,590 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:54,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:54,592 INFO L550 ElimStorePlain]: Start of recursive call 342: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:54,649 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:54,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:54,651 INFO L550 ElimStorePlain]: Start of recursive call 343: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:54,711 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:54,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:54,713 INFO L550 ElimStorePlain]: Start of recursive call 344: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:54,771 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:54,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 55 [2021-04-15 03:47:54,774 INFO L550 ElimStorePlain]: Start of recursive call 345: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:54,832 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:54,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:54,834 INFO L550 ElimStorePlain]: Start of recursive call 346: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:54,892 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:54,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:54,894 INFO L550 ElimStorePlain]: Start of recursive call 347: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:54,952 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:54,953 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 188 treesize of output 55 [2021-04-15 03:47:54,954 INFO L550 ElimStorePlain]: Start of recursive call 348: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:55,019 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:55,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:55,021 INFO L550 ElimStorePlain]: Start of recursive call 349: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:55,079 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:55,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:55,081 INFO L550 ElimStorePlain]: Start of recursive call 350: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:55,139 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:55,139 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 200 treesize of output 59 [2021-04-15 03:47:55,141 INFO L550 ElimStorePlain]: Start of recursive call 351: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:55,217 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:47:55,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:47:55,220 INFO L550 ElimStorePlain]: Start of recursive call 352: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:55,280 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:55,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:55,283 INFO L550 ElimStorePlain]: Start of recursive call 353: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:55,343 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:55,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 51 [2021-04-15 03:47:55,345 INFO L550 ElimStorePlain]: Start of recursive call 354: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:55,403 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:55,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 53 [2021-04-15 03:47:55,405 INFO L550 ElimStorePlain]: Start of recursive call 355: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:55,464 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:55,465 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 211 treesize of output 62 [2021-04-15 03:47:55,467 INFO L550 ElimStorePlain]: Start of recursive call 356: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:55,545 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:47:55,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:47:55,548 INFO L550 ElimStorePlain]: Start of recursive call 357: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:55,607 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:55,608 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 182 treesize of output 53 [2021-04-15 03:47:55,610 INFO L550 ElimStorePlain]: Start of recursive call 358: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:55,671 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:55,672 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 198 treesize of output 57 [2021-04-15 03:47:55,673 INFO L550 ElimStorePlain]: Start of recursive call 359: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:55,745 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:55,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:55,749 INFO L550 ElimStorePlain]: Start of recursive call 360: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:55,820 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:55,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:55,823 INFO L550 ElimStorePlain]: Start of recursive call 361: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:55,889 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:55,889 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 195 treesize of output 58 [2021-04-15 03:47:55,892 INFO L550 ElimStorePlain]: Start of recursive call 362: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:55,955 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:55,956 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 187 treesize of output 54 [2021-04-15 03:47:55,958 INFO L550 ElimStorePlain]: Start of recursive call 363: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:56,022 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:56,023 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 209 treesize of output 60 [2021-04-15 03:47:56,025 INFO L550 ElimStorePlain]: Start of recursive call 364: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:56,091 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:56,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:56,093 INFO L550 ElimStorePlain]: Start of recursive call 365: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:56,158 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:56,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 56 [2021-04-15 03:47:56,160 INFO L550 ElimStorePlain]: Start of recursive call 366: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:56,224 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:56,224 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 224 treesize of output 63 [2021-04-15 03:47:56,226 INFO L550 ElimStorePlain]: Start of recursive call 367: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:56,291 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:56,292 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 183 treesize of output 54 [2021-04-15 03:47:56,293 INFO L550 ElimStorePlain]: Start of recursive call 368: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:56,360 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:56,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:56,362 INFO L550 ElimStorePlain]: Start of recursive call 369: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:56,428 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:56,429 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 223 treesize of output 64 [2021-04-15 03:47:56,431 INFO L550 ElimStorePlain]: Start of recursive call 370: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:56,496 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:56,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:56,498 INFO L550 ElimStorePlain]: Start of recursive call 371: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:56,564 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:56,564 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 191 treesize of output 56 [2021-04-15 03:47:56,567 INFO L550 ElimStorePlain]: Start of recursive call 372: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:56,633 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:56,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:56,635 INFO L550 ElimStorePlain]: Start of recursive call 373: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:56,699 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:56,700 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 187 treesize of output 54 [2021-04-15 03:47:56,702 INFO L550 ElimStorePlain]: Start of recursive call 374: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:56,798 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:56,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:56,801 INFO L550 ElimStorePlain]: Start of recursive call 375: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:56,867 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:56,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:56,870 INFO L550 ElimStorePlain]: Start of recursive call 376: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:56,933 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:56,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:56,937 INFO L550 ElimStorePlain]: Start of recursive call 377: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:57,002 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:57,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:57,005 INFO L550 ElimStorePlain]: Start of recursive call 378: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:57,070 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:57,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 53 [2021-04-15 03:47:57,073 INFO L550 ElimStorePlain]: Start of recursive call 379: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:57,136 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:57,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:57,138 INFO L550 ElimStorePlain]: Start of recursive call 380: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:57,202 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:57,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:57,205 INFO L550 ElimStorePlain]: Start of recursive call 381: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:57,269 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:57,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:57,271 INFO L550 ElimStorePlain]: Start of recursive call 382: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:57,337 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:57,337 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 208 treesize of output 61 [2021-04-15 03:47:57,339 INFO L550 ElimStorePlain]: Start of recursive call 383: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:57,404 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:57,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:57,407 INFO L550 ElimStorePlain]: Start of recursive call 384: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:57,473 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:57,473 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 214 treesize of output 61 [2021-04-15 03:47:57,475 INFO L550 ElimStorePlain]: Start of recursive call 385: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:57,541 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:57,541 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 215 treesize of output 62 [2021-04-15 03:47:57,543 INFO L550 ElimStorePlain]: Start of recursive call 386: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:57,608 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:57,608 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 167 treesize of output 50 [2021-04-15 03:47:57,610 INFO L550 ElimStorePlain]: Start of recursive call 387: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:57,674 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:57,675 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 191 treesize of output 54 [2021-04-15 03:47:57,676 INFO L550 ElimStorePlain]: Start of recursive call 388: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:57,742 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:57,742 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 174 treesize of output 53 [2021-04-15 03:47:57,744 INFO L550 ElimStorePlain]: Start of recursive call 389: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:57,810 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:57,810 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 228 treesize of output 65 [2021-04-15 03:47:57,812 INFO L550 ElimStorePlain]: Start of recursive call 390: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:57,877 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:57,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:57,880 INFO L550 ElimStorePlain]: Start of recursive call 391: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:57,944 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:57,945 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 203 treesize of output 58 [2021-04-15 03:47:57,947 INFO L550 ElimStorePlain]: Start of recursive call 392: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:58,011 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:58,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:58,013 INFO L550 ElimStorePlain]: Start of recursive call 393: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:58,078 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:58,078 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 198 treesize of output 57 [2021-04-15 03:47:58,080 INFO L550 ElimStorePlain]: Start of recursive call 394: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:58,144 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:58,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:58,147 INFO L550 ElimStorePlain]: Start of recursive call 395: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:58,212 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:58,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 56 [2021-04-15 03:47:58,214 INFO L550 ElimStorePlain]: Start of recursive call 396: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:58,279 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:58,279 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 203 treesize of output 58 [2021-04-15 03:47:58,281 INFO L550 ElimStorePlain]: Start of recursive call 397: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:58,346 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:58,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 56 [2021-04-15 03:47:58,349 INFO L550 ElimStorePlain]: Start of recursive call 398: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:58,415 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:58,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:58,417 INFO L550 ElimStorePlain]: Start of recursive call 399: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:58,504 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:58,505 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 203 treesize of output 58 [2021-04-15 03:47:58,507 INFO L550 ElimStorePlain]: Start of recursive call 400: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:58,615 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:47:58,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:47:58,617 INFO L550 ElimStorePlain]: Start of recursive call 401: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:58,703 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:47:58,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:47:58,705 INFO L550 ElimStorePlain]: Start of recursive call 402: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:58,772 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:58,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:58,774 INFO L550 ElimStorePlain]: Start of recursive call 403: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:58,841 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:58,841 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 213 treesize of output 60 [2021-04-15 03:47:58,844 INFO L550 ElimStorePlain]: Start of recursive call 404: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:58,910 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:58,910 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 [2021-04-15 03:47:58,912 INFO L550 ElimStorePlain]: Start of recursive call 405: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:58,980 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:58,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:58,982 INFO L550 ElimStorePlain]: Start of recursive call 406: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:59,050 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:59,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:59,052 INFO L550 ElimStorePlain]: Start of recursive call 407: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:59,120 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:59,120 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 232 treesize of output 63 [2021-04-15 03:47:59,122 INFO L550 ElimStorePlain]: Start of recursive call 408: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:59,190 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:59,190 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 196 treesize of output 57 [2021-04-15 03:47:59,192 INFO L550 ElimStorePlain]: Start of recursive call 409: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:59,260 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:59,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:59,262 INFO L550 ElimStorePlain]: Start of recursive call 410: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:59,350 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:47:59,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:47:59,352 INFO L550 ElimStorePlain]: Start of recursive call 411: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:59,420 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:59,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:59,423 INFO L550 ElimStorePlain]: Start of recursive call 412: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:59,490 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:59,491 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 172 treesize of output 51 [2021-04-15 03:47:59,492 INFO L550 ElimStorePlain]: Start of recursive call 413: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:59,561 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:59,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 51 [2021-04-15 03:47:59,563 INFO L550 ElimStorePlain]: Start of recursive call 414: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:59,632 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:59,632 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 190 treesize of output 57 [2021-04-15 03:47:59,634 INFO L550 ElimStorePlain]: Start of recursive call 415: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:59,702 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:59,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:59,704 INFO L550 ElimStorePlain]: Start of recursive call 416: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:59,771 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:59,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:59,774 INFO L550 ElimStorePlain]: Start of recursive call 417: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:59,841 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:59,841 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 201 treesize of output 58 [2021-04-15 03:47:59,843 INFO L550 ElimStorePlain]: Start of recursive call 418: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:59,912 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:59,912 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 227 treesize of output 62 [2021-04-15 03:47:59,914 INFO L550 ElimStorePlain]: Start of recursive call 419: End of recursive call: and 1 xjuncts. [2021-04-15 03:47:59,981 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:47:59,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:47:59,983 INFO L550 ElimStorePlain]: Start of recursive call 420: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:00,051 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:00,051 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 227 treesize of output 62 [2021-04-15 03:48:00,053 INFO L550 ElimStorePlain]: Start of recursive call 421: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:00,128 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:00,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:00,130 INFO L550 ElimStorePlain]: Start of recursive call 422: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:00,199 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:00,199 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 201 treesize of output 58 [2021-04-15 03:48:00,202 INFO L550 ElimStorePlain]: Start of recursive call 423: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:00,292 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:00,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:00,295 INFO L550 ElimStorePlain]: Start of recursive call 424: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:00,363 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:00,364 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 200 treesize of output 59 [2021-04-15 03:48:00,366 INFO L550 ElimStorePlain]: Start of recursive call 425: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:00,432 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:00,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:00,435 INFO L550 ElimStorePlain]: Start of recursive call 426: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:00,499 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:00,499 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 198 treesize of output 57 [2021-04-15 03:48:00,501 INFO L550 ElimStorePlain]: Start of recursive call 427: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:00,564 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:00,564 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 185 treesize of output 56 [2021-04-15 03:48:00,566 INFO L550 ElimStorePlain]: Start of recursive call 428: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:00,630 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:00,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:00,632 INFO L550 ElimStorePlain]: Start of recursive call 429: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:00,696 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:00,697 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 198 treesize of output 57 [2021-04-15 03:48:00,699 INFO L550 ElimStorePlain]: Start of recursive call 430: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:00,763 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:00,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:00,765 INFO L550 ElimStorePlain]: Start of recursive call 431: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:00,829 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:00,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 53 [2021-04-15 03:48:00,832 INFO L550 ElimStorePlain]: Start of recursive call 432: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:00,897 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:00,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:00,900 INFO L550 ElimStorePlain]: Start of recursive call 433: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:00,964 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:00,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:00,967 INFO L550 ElimStorePlain]: Start of recursive call 434: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:01,031 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:01,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:01,034 INFO L550 ElimStorePlain]: Start of recursive call 435: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:01,098 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:01,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:01,100 INFO L550 ElimStorePlain]: Start of recursive call 436: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:01,189 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:01,189 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 211 treesize of output 66 [2021-04-15 03:48:01,192 INFO L550 ElimStorePlain]: Start of recursive call 437: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:01,274 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:01,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:01,277 INFO L550 ElimStorePlain]: Start of recursive call 438: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:01,341 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:01,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:01,343 INFO L550 ElimStorePlain]: Start of recursive call 439: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:01,406 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:01,406 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 208 treesize of output 59 [2021-04-15 03:48:01,408 INFO L550 ElimStorePlain]: Start of recursive call 440: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:01,471 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:01,471 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 191 treesize of output 56 [2021-04-15 03:48:01,473 INFO L550 ElimStorePlain]: Start of recursive call 441: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:01,537 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:01,537 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 193 treesize of output 56 [2021-04-15 03:48:01,539 INFO L550 ElimStorePlain]: Start of recursive call 442: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:01,603 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:01,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:01,605 INFO L550 ElimStorePlain]: Start of recursive call 443: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:01,671 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:01,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:01,674 INFO L550 ElimStorePlain]: Start of recursive call 444: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:01,738 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:01,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:01,741 INFO L550 ElimStorePlain]: Start of recursive call 445: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:01,804 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:01,805 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 203 treesize of output 58 [2021-04-15 03:48:01,807 INFO L550 ElimStorePlain]: Start of recursive call 446: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:01,870 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:01,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:01,872 INFO L550 ElimStorePlain]: Start of recursive call 447: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:01,936 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:01,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:01,938 INFO L550 ElimStorePlain]: Start of recursive call 448: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:02,019 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:02,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:02,021 INFO L550 ElimStorePlain]: Start of recursive call 449: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:02,084 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:02,084 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 204 treesize of output 59 [2021-04-15 03:48:02,086 INFO L550 ElimStorePlain]: Start of recursive call 450: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:02,148 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:02,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 167 treesize of output 50 [2021-04-15 03:48:02,150 INFO L550 ElimStorePlain]: Start of recursive call 451: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:02,211 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:02,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:02,213 INFO L550 ElimStorePlain]: Start of recursive call 452: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:02,275 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:02,276 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 198 treesize of output 57 [2021-04-15 03:48:02,278 INFO L550 ElimStorePlain]: Start of recursive call 453: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:02,340 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:02,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 58 [2021-04-15 03:48:02,342 INFO L550 ElimStorePlain]: Start of recursive call 454: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:02,407 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:02,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:02,409 INFO L550 ElimStorePlain]: Start of recursive call 455: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:02,471 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:02,471 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 195 treesize of output 58 [2021-04-15 03:48:02,473 INFO L550 ElimStorePlain]: Start of recursive call 456: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:02,534 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:02,534 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 206 treesize of output 57 [2021-04-15 03:48:02,536 INFO L550 ElimStorePlain]: Start of recursive call 457: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:02,600 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:02,600 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 209 treesize of output 60 [2021-04-15 03:48:02,602 INFO L550 ElimStorePlain]: Start of recursive call 458: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:02,658 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:02,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:02,660 INFO L550 ElimStorePlain]: Start of recursive call 459: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:02,714 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:02,714 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 206 treesize of output 59 [2021-04-15 03:48:02,716 INFO L550 ElimStorePlain]: Start of recursive call 460: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:02,770 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:02,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:02,772 INFO L550 ElimStorePlain]: Start of recursive call 461: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:02,827 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:02,827 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 205 treesize of output 60 [2021-04-15 03:48:02,829 INFO L550 ElimStorePlain]: Start of recursive call 462: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:02,882 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:02,882 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 210 treesize of output 61 [2021-04-15 03:48:02,884 INFO L550 ElimStorePlain]: Start of recursive call 463: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:02,937 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:02,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 54 [2021-04-15 03:48:02,939 INFO L550 ElimStorePlain]: Start of recursive call 464: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:02,992 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:02,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:02,994 INFO L550 ElimStorePlain]: Start of recursive call 465: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:03,055 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:03,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:03,057 INFO L550 ElimStorePlain]: Start of recursive call 466: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:03,115 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:03,115 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 185 treesize of output 56 [2021-04-15 03:48:03,117 INFO L550 ElimStorePlain]: Start of recursive call 467: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:03,171 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:03,171 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 200 treesize of output 59 [2021-04-15 03:48:03,173 INFO L550 ElimStorePlain]: Start of recursive call 468: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:03,225 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:03,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:03,227 INFO L550 ElimStorePlain]: Start of recursive call 469: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:03,284 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:03,284 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 214 treesize of output 61 [2021-04-15 03:48:03,286 INFO L550 ElimStorePlain]: Start of recursive call 470: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:03,352 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:03,352 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 200 treesize of output 59 [2021-04-15 03:48:03,355 INFO L550 ElimStorePlain]: Start of recursive call 471: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:03,420 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:03,420 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 190 treesize of output 57 [2021-04-15 03:48:03,422 INFO L550 ElimStorePlain]: Start of recursive call 472: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:03,514 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:03,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 56 [2021-04-15 03:48:03,515 INFO L550 ElimStorePlain]: Start of recursive call 473: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:03,588 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:03,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:03,590 INFO L550 ElimStorePlain]: Start of recursive call 474: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:03,660 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:03,661 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 221 treesize of output 64 [2021-04-15 03:48:03,663 INFO L550 ElimStorePlain]: Start of recursive call 475: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:03,732 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:03,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:03,735 INFO L550 ElimStorePlain]: Start of recursive call 476: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:03,798 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:03,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:03,801 INFO L550 ElimStorePlain]: Start of recursive call 477: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:03,873 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:03,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:03,876 INFO L550 ElimStorePlain]: Start of recursive call 478: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:03,945 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:03,945 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 227 treesize of output 62 [2021-04-15 03:48:03,947 INFO L550 ElimStorePlain]: Start of recursive call 479: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:04,023 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:04,024 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 213 treesize of output 60 [2021-04-15 03:48:04,026 INFO L550 ElimStorePlain]: Start of recursive call 480: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:04,094 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:04,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:04,097 INFO L550 ElimStorePlain]: Start of recursive call 481: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:04,167 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:04,167 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 185 treesize of output 56 [2021-04-15 03:48:04,169 INFO L550 ElimStorePlain]: Start of recursive call 482: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:04,231 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:04,231 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 205 treesize of output 60 [2021-04-15 03:48:04,233 INFO L550 ElimStorePlain]: Start of recursive call 483: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:04,291 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:04,292 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 198 treesize of output 57 [2021-04-15 03:48:04,294 INFO L550 ElimStorePlain]: Start of recursive call 484: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:04,354 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:04,354 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 188 treesize of output 55 [2021-04-15 03:48:04,357 INFO L550 ElimStorePlain]: Start of recursive call 485: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:04,426 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:04,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:04,428 INFO L550 ElimStorePlain]: Start of recursive call 486: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:04,495 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:04,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:04,498 INFO L550 ElimStorePlain]: Start of recursive call 487: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:04,570 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:04,570 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 190 treesize of output 57 [2021-04-15 03:48:04,572 INFO L550 ElimStorePlain]: Start of recursive call 488: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:04,637 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:04,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:04,639 INFO L550 ElimStorePlain]: Start of recursive call 489: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:04,707 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:04,707 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 182 treesize of output 53 [2021-04-15 03:48:04,709 INFO L550 ElimStorePlain]: Start of recursive call 490: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:04,776 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:04,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:04,778 INFO L550 ElimStorePlain]: Start of recursive call 491: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:04,868 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:04,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:04,871 INFO L550 ElimStorePlain]: Start of recursive call 492: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:04,938 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:04,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:04,940 INFO L550 ElimStorePlain]: Start of recursive call 493: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:05,003 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:05,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:05,006 INFO L550 ElimStorePlain]: Start of recursive call 494: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:05,069 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:05,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:05,072 INFO L550 ElimStorePlain]: Start of recursive call 495: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:05,133 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:05,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 58 [2021-04-15 03:48:05,136 INFO L550 ElimStorePlain]: Start of recursive call 496: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:05,184 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:05,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:05,187 INFO L550 ElimStorePlain]: Start of recursive call 497: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:05,234 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:05,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:05,237 INFO L550 ElimStorePlain]: Start of recursive call 498: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:05,283 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:05,284 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 190 treesize of output 57 [2021-04-15 03:48:05,285 INFO L550 ElimStorePlain]: Start of recursive call 499: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:05,327 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:05,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:05,329 INFO L550 ElimStorePlain]: Start of recursive call 500: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:05,373 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:05,374 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 222 treesize of output 61 [2021-04-15 03:48:05,376 INFO L550 ElimStorePlain]: Start of recursive call 501: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:05,430 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:05,431 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 201 treesize of output 56 [2021-04-15 03:48:05,433 INFO L550 ElimStorePlain]: Start of recursive call 502: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:05,495 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:05,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:05,498 INFO L550 ElimStorePlain]: Start of recursive call 503: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:05,555 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:05,555 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 177 treesize of output 52 [2021-04-15 03:48:05,557 INFO L550 ElimStorePlain]: Start of recursive call 504: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:05,565 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:05,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:05,568 INFO L550 ElimStorePlain]: Start of recursive call 505: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:05,571 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:48:05,572 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:48:05,572 INFO L247 ElimStorePlain]: Needed 505 recursive calls to eliminate 2 variables, input treesize:102913, output treesize:3 [2021-04-15 03:48:05,589 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:48:05,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:48:05,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16] total 23 [2021-04-15 03:48:05,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146272383] [2021-04-15 03:48:05,589 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-04-15 03:48:05,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:48:05,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-04-15 03:48:05,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-04-15 03:48:05,590 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) [2021-04-15 03:48:06,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:48:06,278 INFO L93 Difference]: Finished difference Result 52344 states and 132850 transitions. [2021-04-15 03:48:06,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-04-15 03:48:06,279 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 [2021-04-15 03:48:06,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:48:06,392 INFO L225 Difference]: With dead ends: 52344 [2021-04-15 03:48:06,392 INFO L226 Difference]: Without dead ends: 52328 [2021-04-15 03:48:06,392 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 680.3ms TimeCoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-04-15 03:48:06,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52328 states. [2021-04-15 03:48:07,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52328 to 51480. [2021-04-15 03:48:07,305 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) [2021-04-15 03:48:07,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51480 states to 51480 states and 131161 transitions. [2021-04-15 03:48:07,427 INFO L78 Accepts]: Start accepts. Automaton has 51480 states and 131161 transitions. Word has length 42 [2021-04-15 03:48:07,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:48:07,427 INFO L480 AbstractCegarLoop]: Abstraction has 51480 states and 131161 transitions. [2021-04-15 03:48:07,427 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) [2021-04-15 03:48:07,427 INFO L276 IsEmpty]: Start isEmpty. Operand 51480 states and 131161 transitions. [2021-04-15 03:48:07,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-04-15 03:48:07,462 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:48:07,462 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:48:07,663 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 138 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable4305 [2021-04-15 03:48:07,663 INFO L428 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:48:07,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:48:07,668 INFO L82 PathProgramCache]: Analyzing trace with hash 848508788, now seen corresponding path program 138 times [2021-04-15 03:48:07,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:48:07,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299112883] [2021-04-15 03:48:07,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:48:07,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:48:07,794 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:48:07,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299112883] [2021-04-15 03:48:07,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666157611] [2021-04-15 03:48:07,794 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 [2021-04-15 03:48:07,830 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2021-04-15 03:48:07,830 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:48:07,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 55 conjunts are in the unsatisfiable core [2021-04-15 03:48:07,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:48:08,504 INFO L446 ElimStorePlain]: Different costs {28=[f], 66=[f_inv]} [2021-04-15 03:48:08,733 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 66 [2021-04-15 03:48:08,733 INFO L354 Elim1Store]: treesize reduction 125, result has 44.4 percent of original size [2021-04-15 03:48:08,734 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 [2021-04-15 03:48:10,532 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-04-15 03:48:12,796 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-04-15 03:48:13,836 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-04-15 03:48:14,028 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-15 03:48:14,028 INFO L628 ElimStorePlain]: treesize reduction 17, result has 96.5 percent of original size [2021-04-15 03:48:14,166 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-15 03:48:14,167 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:48:14,167 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 13 new quantified variables, introduced 21 case distinctions, treesize of input 465 treesize of output 289 [2021-04-15 03:48:14,712 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:14,715 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:48:14,715 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:48:14,715 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:264, output treesize:3 [2021-04-15 03:48:14,732 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:48:14,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:48:14,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16] total 23 [2021-04-15 03:48:14,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360622909] [2021-04-15 03:48:14,732 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-04-15 03:48:14,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:48:14,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-04-15 03:48:14,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-04-15 03:48:14,733 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) [2021-04-15 03:48:15,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:48:15,422 INFO L93 Difference]: Finished difference Result 53250 states and 135691 transitions. [2021-04-15 03:48:15,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 03:48:15,423 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 [2021-04-15 03:48:15,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:48:15,514 INFO L225 Difference]: With dead ends: 53250 [2021-04-15 03:48:15,514 INFO L226 Difference]: Without dead ends: 53232 [2021-04-15 03:48:15,514 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 670.6ms TimeCoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-04-15 03:48:15,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53232 states. [2021-04-15 03:48:16,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53232 to 52433. [2021-04-15 03:48:16,262 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) [2021-04-15 03:48:16,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52433 states to 52433 states and 133831 transitions. [2021-04-15 03:48:16,371 INFO L78 Accepts]: Start accepts. Automaton has 52433 states and 133831 transitions. Word has length 42 [2021-04-15 03:48:16,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:48:16,371 INFO L480 AbstractCegarLoop]: Abstraction has 52433 states and 133831 transitions. [2021-04-15 03:48:16,371 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) [2021-04-15 03:48:16,371 INFO L276 IsEmpty]: Start isEmpty. Operand 52433 states and 133831 transitions. [2021-04-15 03:48:16,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-04-15 03:48:16,402 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:48:16,402 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:48:16,603 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4742,139 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:48:16,603 INFO L428 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:48:16,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:48:16,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1524801932, now seen corresponding path program 139 times [2021-04-15 03:48:16,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:48:16,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475766541] [2021-04-15 03:48:16,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:48:16,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:48:16,690 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:48:16,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475766541] [2021-04-15 03:48:16,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694511313] [2021-04-15 03:48:16,690 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 [2021-04-15 03:48:16,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:48:16,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 45 conjunts are in the unsatisfiable core [2021-04-15 03:48:16,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:48:17,429 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 73 [2021-04-15 03:48:17,430 INFO L354 Elim1Store]: treesize reduction 355, result has 34.4 percent of original size [2021-04-15 03:48:17,430 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 246 [2021-04-15 03:48:17,436 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:17,541 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-15 03:48:17,542 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:48:17,543 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:48:17,543 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:207, output treesize:318 [2021-04-15 03:48:17,761 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2021-04-15 03:48:19,042 WARN L205 SmtUtils]: Spent 773.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 50 [2021-04-15 03:48:19,189 INFO L446 ElimStorePlain]: Different costs {6=[v_prenex_138], 10=[f], 15=[v_prenex_139], 21=[v_prenex_137]} [2021-04-15 03:48:19,233 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:48:19,233 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 [2021-04-15 03:48:19,257 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:19,270 INFO L628 ElimStorePlain]: treesize reduction 238, result has 1.2 percent of original size [2021-04-15 03:48:19,271 INFO L518 ElimStorePlain]: Eliminatee f vanished before elimination [2021-04-15 03:48:19,271 INFO L518 ElimStorePlain]: Eliminatee v_prenex_139 vanished before elimination [2021-04-15 03:48:19,271 INFO L518 ElimStorePlain]: Eliminatee v_prenex_137 vanished before elimination [2021-04-15 03:48:19,272 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:48:19,272 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:261, output treesize:3 [2021-04-15 03:48:19,289 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:48:19,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:48:19,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16] total 23 [2021-04-15 03:48:19,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691054709] [2021-04-15 03:48:19,289 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-04-15 03:48:19,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:48:19,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-04-15 03:48:19,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2021-04-15 03:48:19,290 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) [2021-04-15 03:48:20,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:48:20,325 INFO L93 Difference]: Finished difference Result 54975 states and 140281 transitions. [2021-04-15 03:48:20,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-04-15 03:48:20,327 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 [2021-04-15 03:48:20,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:48:20,420 INFO L225 Difference]: With dead ends: 54975 [2021-04-15 03:48:20,420 INFO L226 Difference]: Without dead ends: 54946 [2021-04-15 03:48:20,420 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1635.2ms TimeCoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2021-04-15 03:48:20,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54946 states. [2021-04-15 03:48:21,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54946 to 53500. [2021-04-15 03:48:21,460 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) [2021-04-15 03:48:21,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53500 states to 53500 states and 136793 transitions. [2021-04-15 03:48:21,577 INFO L78 Accepts]: Start accepts. Automaton has 53500 states and 136793 transitions. Word has length 42 [2021-04-15 03:48:21,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:48:21,577 INFO L480 AbstractCegarLoop]: Abstraction has 53500 states and 136793 transitions. [2021-04-15 03:48:21,577 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) [2021-04-15 03:48:21,577 INFO L276 IsEmpty]: Start isEmpty. Operand 53500 states and 136793 transitions. [2021-04-15 03:48:21,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-04-15 03:48:21,612 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:48:21,612 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:48:21,812 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 140 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6037 [2021-04-15 03:48:21,812 INFO L428 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:48:21,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:48:21,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1648769676, now seen corresponding path program 140 times [2021-04-15 03:48:21,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:48:21,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377896822] [2021-04-15 03:48:21,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:48:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:48:21,902 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:48:21,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377896822] [2021-04-15 03:48:21,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928419153] [2021-04-15 03:48:21,902 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 [2021-04-15 03:48:21,928 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 03:48:21,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:48:21,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 45 conjunts are in the unsatisfiable core [2021-04-15 03:48:21,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:48:22,552 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 71 [2021-04-15 03:48:22,553 INFO L354 Elim1Store]: treesize reduction 238, result has 38.2 percent of original size [2021-04-15 03:48:22,553 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 203 [2021-04-15 03:48:22,557 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:22,657 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:48:22,659 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:48:22,659 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:205, output treesize:260 [2021-04-15 03:48:22,853 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2021-04-15 03:48:23,903 WARN L205 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 51 [2021-04-15 03:48:24,197 INFO L446 ElimStorePlain]: Different costs {6=[v_prenex_141], 10=[f], 15=[v_prenex_142], 21=[v_prenex_140]} [2021-04-15 03:48:24,243 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:48:24,243 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 [2021-04-15 03:48:24,246 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:24,261 INFO L628 ElimStorePlain]: treesize reduction 214, result has 1.4 percent of original size [2021-04-15 03:48:24,261 INFO L518 ElimStorePlain]: Eliminatee f vanished before elimination [2021-04-15 03:48:24,261 INFO L518 ElimStorePlain]: Eliminatee v_prenex_142 vanished before elimination [2021-04-15 03:48:24,261 INFO L518 ElimStorePlain]: Eliminatee v_prenex_140 vanished before elimination [2021-04-15 03:48:24,262 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:48:24,262 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:237, output treesize:3 [2021-04-15 03:48:24,278 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:48:24,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:48:24,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16] total 23 [2021-04-15 03:48:24,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069495280] [2021-04-15 03:48:24,278 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-04-15 03:48:24,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:48:24,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-04-15 03:48:24,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2021-04-15 03:48:24,278 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) [2021-04-15 03:48:25,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:48:25,526 INFO L93 Difference]: Finished difference Result 56192 states and 143625 transitions. [2021-04-15 03:48:25,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-04-15 03:48:25,527 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 [2021-04-15 03:48:25,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:48:25,618 INFO L225 Difference]: With dead ends: 56192 [2021-04-15 03:48:25,618 INFO L226 Difference]: Without dead ends: 56159 [2021-04-15 03:48:25,618 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1574.5ms TimeCoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2021-04-15 03:48:25,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56159 states. [2021-04-15 03:48:26,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56159 to 54544. [2021-04-15 03:48:26,542 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) [2021-04-15 03:48:26,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54544 states to 54544 states and 139665 transitions. [2021-04-15 03:48:26,644 INFO L78 Accepts]: Start accepts. Automaton has 54544 states and 139665 transitions. Word has length 42 [2021-04-15 03:48:26,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:48:26,644 INFO L480 AbstractCegarLoop]: Abstraction has 54544 states and 139665 transitions. [2021-04-15 03:48:26,645 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) [2021-04-15 03:48:26,645 INFO L276 IsEmpty]: Start isEmpty. Operand 54544 states and 139665 transitions. [2021-04-15 03:48:26,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-04-15 03:48:26,679 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:48:26,679 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:48:26,880 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6070,141 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:48:26,881 INFO L428 AbstractCegarLoop]: === Iteration 146 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:48:26,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:48:26,881 INFO L82 PathProgramCache]: Analyzing trace with hash -522687372, now seen corresponding path program 141 times [2021-04-15 03:48:26,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:48:26,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428765867] [2021-04-15 03:48:26,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:48:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:48:26,972 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:48:26,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428765867] [2021-04-15 03:48:26,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649661677] [2021-04-15 03:48:26,972 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 [2021-04-15 03:48:27,000 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2021-04-15 03:48:27,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:48:27,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 53 conjunts are in the unsatisfiable core [2021-04-15 03:48:27,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:48:27,557 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-04-15 03:48:28,061 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 70 [2021-04-15 03:48:28,061 INFO L354 Elim1Store]: treesize reduction 211, result has 37.4 percent of original size [2021-04-15 03:48:28,061 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 208 [2021-04-15 03:48:28,797 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-15 03:48:30,898 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-04-15 03:48:31,004 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-15 03:48:31,005 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:48:32,262 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-04-15 03:48:32,262 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:258, output treesize:343 [2021-04-15 03:48:34,914 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2021-04-15 03:48:35,337 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 407 DAG size of output: 404 [2021-04-15 03:48:36,031 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 835 DAG size of output: 835 [2021-04-15 03:48:36,383 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 835 DAG size of output: 835 [2021-04-15 03:48:37,044 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 835 [2021-04-15 03:48:46,927 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2021-04-15 03:48:47,150 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:47,151 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 [2021-04-15 03:48:47,153 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:47,244 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:47,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:47,247 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:47,345 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:47,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:47,347 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:47,476 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:47,476 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 180 treesize of output 1 [2021-04-15 03:48:47,477 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:47,600 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:47,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:47,602 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:47,728 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:47,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:47,730 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:47,844 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:47,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:47,845 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:47,958 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:47,958 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 180 treesize of output 1 [2021-04-15 03:48:47,959 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:48,056 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:48,057 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 175 treesize of output 64 [2021-04-15 03:48:48,058 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:48,175 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:48,175 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 175 treesize of output 62 [2021-04-15 03:48:48,178 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:48,270 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:48,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:48,273 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:48,397 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:48,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:48,400 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:48,535 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:48,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:48,536 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:48,632 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:48,632 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 192 treesize of output 57 [2021-04-15 03:48:48,634 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:48,757 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:48,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:48,760 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:48,890 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:48,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:48,892 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:49,025 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:49,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:49,029 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:49,155 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:49,155 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 63 [2021-04-15 03:48:49,157 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:49,288 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:49,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:49,291 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:49,392 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:49,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:49,394 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:49,495 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:49,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:49,498 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:49,626 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:49,626 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 190 treesize of output 65 [2021-04-15 03:48:49,628 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:49,754 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:49,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:49,757 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:49,851 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:49,852 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 177 treesize of output 54 [2021-04-15 03:48:49,854 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:49,981 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:49,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:49,983 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:50,084 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:50,084 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 180 treesize of output 57 [2021-04-15 03:48:50,086 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:50,229 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:50,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:50,232 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:50,381 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:50,381 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 190 treesize of output 67 [2021-04-15 03:48:50,384 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:50,536 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:50,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:50,541 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:50,680 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:50,680 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 180 treesize of output 61 [2021-04-15 03:48:50,683 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:50,817 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:50,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:50,820 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:50,959 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:50,959 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 65 [2021-04-15 03:48:50,962 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:51,104 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:51,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:51,106 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:51,235 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:51,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:51,237 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:51,353 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:51,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:51,356 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:51,460 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:51,461 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 190 treesize of output 63 [2021-04-15 03:48:51,463 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:51,600 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:51,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:51,603 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:51,757 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:51,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:51,760 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:51,872 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:51,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:51,874 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:51,999 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:52,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:52,002 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:52,112 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:52,112 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 179 treesize of output 52 [2021-04-15 03:48:52,114 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:52,249 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:52,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:52,252 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:52,390 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:52,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:52,393 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:52,534 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:52,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:52,537 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:52,679 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:52,680 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 185 treesize of output 66 [2021-04-15 03:48:52,682 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:52,820 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:52,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:52,823 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:52,961 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:52,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:52,963 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:53,102 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:53,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:53,105 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:53,245 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:53,246 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 185 treesize of output 64 [2021-04-15 03:48:53,248 INFO L550 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:53,387 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:53,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:53,390 INFO L550 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:53,500 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:53,501 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 202 treesize of output 59 [2021-04-15 03:48:53,503 INFO L550 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:53,645 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:53,645 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 195 treesize of output 64 [2021-04-15 03:48:53,647 INFO L550 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:53,788 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:53,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:53,791 INFO L550 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:53,902 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:53,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:53,905 INFO L550 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:54,053 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:54,053 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 [2021-04-15 03:48:54,056 INFO L550 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:54,198 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:54,198 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 185 treesize of output 64 [2021-04-15 03:48:54,201 INFO L550 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:54,347 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:54,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:54,350 INFO L550 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:54,496 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:54,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:54,499 INFO L550 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:54,648 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:54,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:54,651 INFO L550 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:54,801 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:54,801 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 180 treesize of output 67 [2021-04-15 03:48:54,804 INFO L550 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:54,919 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:54,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:54,922 INFO L550 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:55,040 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:55,041 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 172 treesize of output 53 [2021-04-15 03:48:55,043 INFO L550 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:55,195 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:55,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:55,198 INFO L550 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:55,365 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:55,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:55,368 INFO L550 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:55,487 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:55,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:55,490 INFO L550 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:55,606 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:55,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:55,610 INFO L550 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:55,732 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:55,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:55,735 INFO L550 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:55,858 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:55,858 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 175 treesize of output 66 [2021-04-15 03:48:55,861 INFO L550 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:55,947 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:55,948 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 176 treesize of output 49 [2021-04-15 03:48:55,950 INFO L550 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:56,068 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:56,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:56,071 INFO L550 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:56,187 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:56,188 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 185 treesize of output 64 [2021-04-15 03:48:56,190 INFO L550 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:56,313 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:56,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:56,316 INFO L550 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:56,436 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:56,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:56,439 INFO L550 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:56,561 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:56,562 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 190 treesize of output 63 [2021-04-15 03:48:56,564 INFO L550 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:56,683 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:56,683 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 66 [2021-04-15 03:48:56,686 INFO L550 ElimStorePlain]: Start of recursive call 76: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:56,803 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:56,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:56,805 INFO L550 ElimStorePlain]: Start of recursive call 77: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:56,901 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:56,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:56,904 INFO L550 ElimStorePlain]: Start of recursive call 78: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:56,994 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:56,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:56,996 INFO L550 ElimStorePlain]: Start of recursive call 79: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:57,084 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:57,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:57,086 INFO L550 ElimStorePlain]: Start of recursive call 80: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:57,219 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:57,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:57,222 INFO L550 ElimStorePlain]: Start of recursive call 81: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:57,359 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:57,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:57,363 INFO L550 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:57,466 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:57,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:57,469 INFO L550 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:57,592 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:57,592 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 175 treesize of output 62 [2021-04-15 03:48:57,594 INFO L550 ElimStorePlain]: Start of recursive call 84: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:57,717 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:57,718 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 67 [2021-04-15 03:48:57,720 INFO L550 ElimStorePlain]: Start of recursive call 85: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:57,813 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:57,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:57,817 INFO L550 ElimStorePlain]: Start of recursive call 86: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:57,945 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:57,945 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 66 [2021-04-15 03:48:57,948 INFO L550 ElimStorePlain]: Start of recursive call 87: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:58,073 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:58,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:58,076 INFO L550 ElimStorePlain]: Start of recursive call 88: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:58,197 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:58,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:58,200 INFO L550 ElimStorePlain]: Start of recursive call 89: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:58,322 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:58,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:58,325 INFO L550 ElimStorePlain]: Start of recursive call 90: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:58,422 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:58,423 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 192 treesize of output 57 [2021-04-15 03:48:58,425 INFO L550 ElimStorePlain]: Start of recursive call 91: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:58,560 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:58,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:58,563 INFO L550 ElimStorePlain]: Start of recursive call 92: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:58,686 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:58,686 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 190 treesize of output 63 [2021-04-15 03:48:58,689 INFO L550 ElimStorePlain]: Start of recursive call 93: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:58,811 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:58,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:58,813 INFO L550 ElimStorePlain]: Start of recursive call 94: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:58,937 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:58,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:58,940 INFO L550 ElimStorePlain]: Start of recursive call 95: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:59,034 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:48:59,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:48:59,036 INFO L550 ElimStorePlain]: Start of recursive call 96: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:59,159 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:59,159 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 185 treesize of output 64 [2021-04-15 03:48:59,161 INFO L550 ElimStorePlain]: Start of recursive call 97: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:59,285 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:59,285 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 64 [2021-04-15 03:48:59,288 INFO L550 ElimStorePlain]: Start of recursive call 98: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:59,416 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:59,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:59,419 INFO L550 ElimStorePlain]: Start of recursive call 99: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:59,551 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:59,551 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 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 68 [2021-04-15 03:48:59,554 INFO L550 ElimStorePlain]: Start of recursive call 100: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:59,685 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:59,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:59,688 INFO L550 ElimStorePlain]: Start of recursive call 101: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:59,818 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:59,818 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 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 64 [2021-04-15 03:48:59,821 INFO L550 ElimStorePlain]: Start of recursive call 102: End of recursive call: and 1 xjuncts. [2021-04-15 03:48:59,946 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:48:59,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:48:59,950 INFO L550 ElimStorePlain]: Start of recursive call 103: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:00,081 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:00,082 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 185 treesize of output 70 [2021-04-15 03:49:00,085 INFO L550 ElimStorePlain]: Start of recursive call 104: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:00,223 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:00,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:00,226 INFO L550 ElimStorePlain]: Start of recursive call 105: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:00,333 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:00,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:49:00,336 INFO L550 ElimStorePlain]: Start of recursive call 106: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:00,469 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:00,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:00,473 INFO L550 ElimStorePlain]: Start of recursive call 107: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:00,599 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:00,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:00,601 INFO L550 ElimStorePlain]: Start of recursive call 108: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:00,727 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:00,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:00,730 INFO L550 ElimStorePlain]: Start of recursive call 109: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:00,863 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:00,863 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 190 treesize of output 63 [2021-04-15 03:49:00,866 INFO L550 ElimStorePlain]: Start of recursive call 110: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:01,002 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:01,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:01,005 INFO L550 ElimStorePlain]: Start of recursive call 111: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:01,138 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:01,138 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 185 treesize of output 64 [2021-04-15 03:49:01,141 INFO L550 ElimStorePlain]: Start of recursive call 112: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:01,281 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:01,281 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 190 treesize of output 61 [2021-04-15 03:49:01,284 INFO L550 ElimStorePlain]: Start of recursive call 113: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:01,420 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:01,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:01,423 INFO L550 ElimStorePlain]: Start of recursive call 114: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:01,537 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:01,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:49:01,540 INFO L550 ElimStorePlain]: Start of recursive call 115: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:01,678 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:01,678 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 190 treesize of output 69 [2021-04-15 03:49:01,681 INFO L550 ElimStorePlain]: Start of recursive call 116: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:01,820 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:01,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:01,822 INFO L550 ElimStorePlain]: Start of recursive call 117: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:01,964 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:01,965 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 185 treesize of output 66 [2021-04-15 03:49:01,968 INFO L550 ElimStorePlain]: Start of recursive call 118: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:02,096 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:02,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:02,098 INFO L550 ElimStorePlain]: Start of recursive call 119: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:02,209 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:02,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:02,211 INFO L550 ElimStorePlain]: Start of recursive call 120: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:02,293 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:02,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:49:02,296 INFO L550 ElimStorePlain]: Start of recursive call 121: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:02,408 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:02,408 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 61 [2021-04-15 03:49:02,411 INFO L550 ElimStorePlain]: Start of recursive call 122: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:02,519 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:02,519 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 184 treesize of output 53 [2021-04-15 03:49:02,521 INFO L550 ElimStorePlain]: Start of recursive call 123: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:02,658 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:02,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:02,661 INFO L550 ElimStorePlain]: Start of recursive call 124: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:02,794 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:02,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:02,797 INFO L550 ElimStorePlain]: Start of recursive call 125: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:02,906 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:02,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:49:02,909 INFO L550 ElimStorePlain]: Start of recursive call 126: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:03,048 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:03,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:03,051 INFO L550 ElimStorePlain]: Start of recursive call 127: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:03,199 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:03,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:03,202 INFO L550 ElimStorePlain]: Start of recursive call 128: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:03,342 INFO L244 Elim1Store]: Index analysis took 102 ms [2021-04-15 03:49:03,361 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:03,362 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 63 [2021-04-15 03:49:03,365 INFO L550 ElimStorePlain]: Start of recursive call 129: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:03,508 INFO L244 Elim1Store]: Index analysis took 103 ms [2021-04-15 03:49:03,527 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:03,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:03,531 INFO L550 ElimStorePlain]: Start of recursive call 130: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:03,679 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:03,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:03,682 INFO L550 ElimStorePlain]: Start of recursive call 131: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:03,795 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:03,795 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 191 treesize of output 54 [2021-04-15 03:49:03,798 INFO L550 ElimStorePlain]: Start of recursive call 132: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:03,942 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:03,942 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 180 treesize of output 59 [2021-04-15 03:49:03,945 INFO L550 ElimStorePlain]: Start of recursive call 133: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:04,092 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:04,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:04,095 INFO L550 ElimStorePlain]: Start of recursive call 134: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:04,240 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:04,240 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 180 treesize of output 65 [2021-04-15 03:49:04,243 INFO L550 ElimStorePlain]: Start of recursive call 135: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:04,392 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:04,392 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 185 treesize of output 66 [2021-04-15 03:49:04,395 INFO L550 ElimStorePlain]: Start of recursive call 136: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:04,543 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:04,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:04,546 INFO L550 ElimStorePlain]: Start of recursive call 137: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:04,690 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:04,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:04,692 INFO L550 ElimStorePlain]: Start of recursive call 138: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:04,840 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:04,840 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 195 treesize of output 64 [2021-04-15 03:49:04,843 INFO L550 ElimStorePlain]: Start of recursive call 139: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:04,992 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:04,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:04,995 INFO L550 ElimStorePlain]: Start of recursive call 140: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:05,143 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:05,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:05,146 INFO L550 ElimStorePlain]: Start of recursive call 141: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:05,295 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:05,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:05,298 INFO L550 ElimStorePlain]: Start of recursive call 142: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:05,446 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:05,446 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 190 treesize of output 65 [2021-04-15 03:49:05,449 INFO L550 ElimStorePlain]: Start of recursive call 143: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:05,571 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:05,571 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 194 treesize of output 57 [2021-04-15 03:49:05,574 INFO L550 ElimStorePlain]: Start of recursive call 144: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:05,730 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:05,731 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 180 treesize of output 63 [2021-04-15 03:49:05,735 INFO L550 ElimStorePlain]: Start of recursive call 145: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:05,893 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:05,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:05,897 INFO L550 ElimStorePlain]: Start of recursive call 146: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:06,060 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:06,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:06,063 INFO L550 ElimStorePlain]: Start of recursive call 147: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:06,209 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:06,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:06,212 INFO L550 ElimStorePlain]: Start of recursive call 148: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:06,360 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:06,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:06,363 INFO L550 ElimStorePlain]: Start of recursive call 149: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:06,507 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:06,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:06,510 INFO L550 ElimStorePlain]: Start of recursive call 150: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:06,652 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:06,652 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 175 treesize of output 66 [2021-04-15 03:49:06,655 INFO L550 ElimStorePlain]: Start of recursive call 151: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:06,803 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:06,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:06,811 INFO L550 ElimStorePlain]: Start of recursive call 152: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:06,960 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:06,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:06,964 INFO L550 ElimStorePlain]: Start of recursive call 153: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:07,099 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:07,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:07,102 INFO L550 ElimStorePlain]: Start of recursive call 154: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:07,243 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:07,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:07,246 INFO L550 ElimStorePlain]: Start of recursive call 155: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:07,364 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:07,365 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 190 treesize of output 63 [2021-04-15 03:49:07,367 INFO L550 ElimStorePlain]: Start of recursive call 156: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:07,478 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:07,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:07,481 INFO L550 ElimStorePlain]: Start of recursive call 157: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:07,590 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:07,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:49:07,593 INFO L550 ElimStorePlain]: Start of recursive call 158: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:07,740 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:07,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:07,743 INFO L550 ElimStorePlain]: Start of recursive call 159: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:07,885 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:07,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:07,888 INFO L550 ElimStorePlain]: Start of recursive call 160: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:08,025 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:08,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:08,028 INFO L550 ElimStorePlain]: Start of recursive call 161: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:08,171 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:08,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:08,174 INFO L550 ElimStorePlain]: Start of recursive call 162: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:08,316 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:08,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:08,319 INFO L550 ElimStorePlain]: Start of recursive call 163: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:08,458 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:08,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:08,461 INFO L550 ElimStorePlain]: Start of recursive call 164: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:08,596 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:08,596 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 68 [2021-04-15 03:49:08,599 INFO L550 ElimStorePlain]: Start of recursive call 165: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:08,741 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:08,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:08,744 INFO L550 ElimStorePlain]: Start of recursive call 166: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:08,889 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:08,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:08,891 INFO L550 ElimStorePlain]: Start of recursive call 167: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:09,035 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:09,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:09,038 INFO L550 ElimStorePlain]: Start of recursive call 168: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:09,182 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:09,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:09,186 INFO L550 ElimStorePlain]: Start of recursive call 169: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:09,332 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:09,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:09,335 INFO L550 ElimStorePlain]: Start of recursive call 170: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:09,478 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:09,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:09,481 INFO L550 ElimStorePlain]: Start of recursive call 171: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:09,625 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:09,625 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 175 treesize of output 64 [2021-04-15 03:49:09,628 INFO L550 ElimStorePlain]: Start of recursive call 172: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:09,771 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:09,771 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 195 treesize of output 66 [2021-04-15 03:49:09,774 INFO L550 ElimStorePlain]: Start of recursive call 173: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:09,883 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:09,884 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 181 treesize of output 50 [2021-04-15 03:49:09,886 INFO L550 ElimStorePlain]: Start of recursive call 174: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:10,043 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:10,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:10,046 INFO L550 ElimStorePlain]: Start of recursive call 175: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:10,199 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:10,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:10,202 INFO L550 ElimStorePlain]: Start of recursive call 176: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:10,359 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:10,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:10,362 INFO L550 ElimStorePlain]: Start of recursive call 177: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:10,483 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:10,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:49:10,486 INFO L550 ElimStorePlain]: Start of recursive call 178: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:10,636 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:10,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:10,639 INFO L550 ElimStorePlain]: Start of recursive call 179: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:10,791 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:10,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:10,794 INFO L550 ElimStorePlain]: Start of recursive call 180: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:10,943 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:10,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:10,946 INFO L550 ElimStorePlain]: Start of recursive call 181: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:11,096 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:11,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:11,113 INFO L550 ElimStorePlain]: Start of recursive call 182: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:11,266 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:11,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:11,269 INFO L550 ElimStorePlain]: Start of recursive call 183: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:11,423 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:11,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:11,427 INFO L550 ElimStorePlain]: Start of recursive call 184: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:11,579 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:11,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:11,582 INFO L550 ElimStorePlain]: Start of recursive call 185: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:11,733 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:11,734 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 64 [2021-04-15 03:49:11,736 INFO L550 ElimStorePlain]: Start of recursive call 186: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:11,887 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:11,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:11,890 INFO L550 ElimStorePlain]: Start of recursive call 187: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:12,040 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:12,041 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 180 treesize of output 63 [2021-04-15 03:49:12,043 INFO L550 ElimStorePlain]: Start of recursive call 188: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:12,195 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:12,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:12,198 INFO L550 ElimStorePlain]: Start of recursive call 189: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:12,327 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:12,328 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 184 treesize of output 53 [2021-04-15 03:49:12,331 INFO L550 ElimStorePlain]: Start of recursive call 190: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:12,490 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:12,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:12,493 INFO L550 ElimStorePlain]: Start of recursive call 191: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:12,634 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:12,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:12,637 INFO L550 ElimStorePlain]: Start of recursive call 192: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:12,753 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:12,754 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 180 treesize of output 63 [2021-04-15 03:49:12,755 INFO L550 ElimStorePlain]: Start of recursive call 193: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:12,867 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:12,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:12,869 INFO L550 ElimStorePlain]: Start of recursive call 194: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:13,017 INFO L244 Elim1Store]: Index analysis took 103 ms [2021-04-15 03:49:13,040 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:13,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:13,043 INFO L550 ElimStorePlain]: Start of recursive call 195: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:13,190 INFO L244 Elim1Store]: Index analysis took 102 ms [2021-04-15 03:49:13,212 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:13,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:13,215 INFO L550 ElimStorePlain]: Start of recursive call 196: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:13,359 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:13,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:13,362 INFO L550 ElimStorePlain]: Start of recursive call 197: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:13,521 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:13,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:13,524 INFO L550 ElimStorePlain]: Start of recursive call 198: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:13,679 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:13,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:13,682 INFO L550 ElimStorePlain]: Start of recursive call 199: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:13,861 INFO L244 Elim1Store]: Index analysis took 136 ms [2021-04-15 03:49:13,887 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:13,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:13,891 INFO L550 ElimStorePlain]: Start of recursive call 200: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:14,052 INFO L244 Elim1Store]: Index analysis took 111 ms [2021-04-15 03:49:14,078 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:14,078 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 185 treesize of output 64 [2021-04-15 03:49:14,082 INFO L550 ElimStorePlain]: Start of recursive call 201: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:14,246 INFO L244 Elim1Store]: Index analysis took 114 ms [2021-04-15 03:49:14,272 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:14,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:14,276 INFO L550 ElimStorePlain]: Start of recursive call 202: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:14,431 INFO L244 Elim1Store]: Index analysis took 105 ms [2021-04-15 03:49:14,453 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:14,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:14,456 INFO L550 ElimStorePlain]: Start of recursive call 203: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:14,615 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:14,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:14,619 INFO L550 ElimStorePlain]: Start of recursive call 204: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:14,774 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:14,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:14,777 INFO L550 ElimStorePlain]: Start of recursive call 205: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:14,930 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:14,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:14,934 INFO L550 ElimStorePlain]: Start of recursive call 206: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:15,088 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:15,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:15,092 INFO L550 ElimStorePlain]: Start of recursive call 207: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:15,249 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:15,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:15,252 INFO L550 ElimStorePlain]: Start of recursive call 208: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:15,379 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:15,379 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 177 treesize of output 54 [2021-04-15 03:49:15,382 INFO L550 ElimStorePlain]: Start of recursive call 209: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:15,538 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:15,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:15,541 INFO L550 ElimStorePlain]: Start of recursive call 210: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:15,697 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:15,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:15,700 INFO L550 ElimStorePlain]: Start of recursive call 211: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:15,853 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:15,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:15,857 INFO L550 ElimStorePlain]: Start of recursive call 212: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:15,975 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:15,975 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 197 treesize of output 58 [2021-04-15 03:49:15,978 INFO L550 ElimStorePlain]: Start of recursive call 213: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:16,147 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:16,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:16,150 INFO L550 ElimStorePlain]: Start of recursive call 214: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:16,259 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:16,260 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 190 treesize of output 63 [2021-04-15 03:49:16,263 INFO L550 ElimStorePlain]: Start of recursive call 215: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:16,371 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:16,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:16,374 INFO L550 ElimStorePlain]: Start of recursive call 216: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:16,483 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:16,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:16,487 INFO L550 ElimStorePlain]: Start of recursive call 217: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:16,601 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:16,601 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 175 treesize of output 64 [2021-04-15 03:49:16,604 INFO L550 ElimStorePlain]: Start of recursive call 218: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:16,713 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:16,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:16,716 INFO L550 ElimStorePlain]: Start of recursive call 219: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:16,827 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:16,827 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 185 treesize of output 64 [2021-04-15 03:49:16,830 INFO L550 ElimStorePlain]: Start of recursive call 220: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:16,938 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:16,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:16,941 INFO L550 ElimStorePlain]: Start of recursive call 221: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:17,053 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:17,053 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 185 treesize of output 68 [2021-04-15 03:49:17,056 INFO L550 ElimStorePlain]: Start of recursive call 222: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:17,133 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:17,133 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 172 treesize of output 53 [2021-04-15 03:49:17,136 INFO L550 ElimStorePlain]: Start of recursive call 223: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:17,250 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:17,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:17,253 INFO L550 ElimStorePlain]: Start of recursive call 224: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:17,366 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:17,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:17,369 INFO L550 ElimStorePlain]: Start of recursive call 225: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:17,472 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:17,473 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 180 treesize of output 65 [2021-04-15 03:49:17,475 INFO L550 ElimStorePlain]: Start of recursive call 226: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:17,581 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:17,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:17,584 INFO L550 ElimStorePlain]: Start of recursive call 227: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:17,698 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:17,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:17,701 INFO L550 ElimStorePlain]: Start of recursive call 228: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:17,817 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:17,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:17,822 INFO L550 ElimStorePlain]: Start of recursive call 229: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:17,960 INFO L244 Elim1Store]: Index analysis took 117 ms [2021-04-15 03:49:17,972 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:17,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:17,976 INFO L550 ElimStorePlain]: Start of recursive call 230: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:18,119 INFO L244 Elim1Store]: Index analysis took 122 ms [2021-04-15 03:49:18,130 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:18,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:18,135 INFO L550 ElimStorePlain]: Start of recursive call 231: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:18,261 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:18,261 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 190 treesize of output 65 [2021-04-15 03:49:18,263 INFO L550 ElimStorePlain]: Start of recursive call 232: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:18,343 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:18,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:18,345 INFO L550 ElimStorePlain]: Start of recursive call 233: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:18,398 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:18,399 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 179 treesize of output 52 [2021-04-15 03:49:18,400 INFO L550 ElimStorePlain]: Start of recursive call 234: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:18,451 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:18,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:49:18,453 INFO L550 ElimStorePlain]: Start of recursive call 235: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:18,523 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:18,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:18,526 INFO L550 ElimStorePlain]: Start of recursive call 236: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:18,612 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:18,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:49:18,615 INFO L550 ElimStorePlain]: Start of recursive call 237: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:18,735 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:18,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:18,740 INFO L550 ElimStorePlain]: Start of recursive call 238: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:18,853 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:18,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:18,857 INFO L550 ElimStorePlain]: Start of recursive call 239: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:18,971 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:18,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:18,974 INFO L550 ElimStorePlain]: Start of recursive call 240: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:19,081 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:19,082 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 65 [2021-04-15 03:49:19,085 INFO L550 ElimStorePlain]: Start of recursive call 241: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:19,198 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:19,198 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 185 treesize of output 64 [2021-04-15 03:49:19,202 INFO L550 ElimStorePlain]: Start of recursive call 242: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:19,314 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:19,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:19,317 INFO L550 ElimStorePlain]: Start of recursive call 243: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:19,430 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:19,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:19,433 INFO L550 ElimStorePlain]: Start of recursive call 244: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:19,545 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:19,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:19,548 INFO L550 ElimStorePlain]: Start of recursive call 245: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:19,661 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:19,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:19,664 INFO L550 ElimStorePlain]: Start of recursive call 246: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:19,775 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:19,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:19,778 INFO L550 ElimStorePlain]: Start of recursive call 247: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:19,888 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:19,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:19,891 INFO L550 ElimStorePlain]: Start of recursive call 248: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:19,998 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:19,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:20,001 INFO L550 ElimStorePlain]: Start of recursive call 249: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:20,107 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:20,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:20,110 INFO L550 ElimStorePlain]: Start of recursive call 250: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:20,186 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:20,187 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 195 treesize of output 60 [2021-04-15 03:49:20,189 INFO L550 ElimStorePlain]: Start of recursive call 251: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:20,299 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:20,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:20,302 INFO L550 ElimStorePlain]: Start of recursive call 252: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:20,413 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:20,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:20,416 INFO L550 ElimStorePlain]: Start of recursive call 253: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:20,529 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:20,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:20,532 INFO L550 ElimStorePlain]: Start of recursive call 254: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:20,647 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:20,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:20,650 INFO L550 ElimStorePlain]: Start of recursive call 255: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:20,760 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:20,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:20,763 INFO L550 ElimStorePlain]: Start of recursive call 256: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:20,869 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:20,870 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 180 treesize of output 67 [2021-04-15 03:49:20,873 INFO L550 ElimStorePlain]: Start of recursive call 257: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:20,987 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:20,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:20,990 INFO L550 ElimStorePlain]: Start of recursive call 258: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:21,105 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:21,105 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 180 treesize of output 61 [2021-04-15 03:49:21,108 INFO L550 ElimStorePlain]: Start of recursive call 259: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:21,223 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:21,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:21,226 INFO L550 ElimStorePlain]: Start of recursive call 260: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:21,344 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:21,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:21,347 INFO L550 ElimStorePlain]: Start of recursive call 261: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:21,438 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:21,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:21,440 INFO L550 ElimStorePlain]: Start of recursive call 262: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:21,519 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:21,519 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 64 [2021-04-15 03:49:21,521 INFO L550 ElimStorePlain]: Start of recursive call 263: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:21,574 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:21,574 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 175 treesize of output 56 [2021-04-15 03:49:21,576 INFO L550 ElimStorePlain]: Start of recursive call 264: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:21,646 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:21,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:21,648 INFO L550 ElimStorePlain]: Start of recursive call 265: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:21,702 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:21,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:49:21,704 INFO L550 ElimStorePlain]: Start of recursive call 266: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:21,830 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:21,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:21,834 INFO L550 ElimStorePlain]: Start of recursive call 267: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:21,958 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:21,959 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 185 treesize of output 66 [2021-04-15 03:49:21,961 INFO L550 ElimStorePlain]: Start of recursive call 268: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:22,078 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:22,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:22,081 INFO L550 ElimStorePlain]: Start of recursive call 269: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:22,167 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:22,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:49:22,171 INFO L550 ElimStorePlain]: Start of recursive call 270: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:22,263 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:22,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:49:22,266 INFO L550 ElimStorePlain]: Start of recursive call 271: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:22,413 INFO L244 Elim1Store]: Index analysis took 124 ms [2021-04-15 03:49:22,425 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:22,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:22,429 INFO L550 ElimStorePlain]: Start of recursive call 272: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:22,554 INFO L244 Elim1Store]: Index analysis took 104 ms [2021-04-15 03:49:22,565 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:22,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:22,569 INFO L550 ElimStorePlain]: Start of recursive call 273: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:22,690 INFO L244 Elim1Store]: Index analysis took 101 ms [2021-04-15 03:49:22,702 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:22,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:22,705 INFO L550 ElimStorePlain]: Start of recursive call 274: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:22,830 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:22,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:22,833 INFO L550 ElimStorePlain]: Start of recursive call 275: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:22,953 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:22,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:22,957 INFO L550 ElimStorePlain]: Start of recursive call 276: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:23,079 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:23,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:23,083 INFO L550 ElimStorePlain]: Start of recursive call 277: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:23,207 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:23,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:23,210 INFO L550 ElimStorePlain]: Start of recursive call 278: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:23,331 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:23,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:23,335 INFO L550 ElimStorePlain]: Start of recursive call 279: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:23,457 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:23,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:23,461 INFO L550 ElimStorePlain]: Start of recursive call 280: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:23,579 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:23,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:23,583 INFO L550 ElimStorePlain]: Start of recursive call 281: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:23,707 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:23,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:23,710 INFO L550 ElimStorePlain]: Start of recursive call 282: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:23,836 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:23,837 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 185 treesize of output 62 [2021-04-15 03:49:23,840 INFO L550 ElimStorePlain]: Start of recursive call 283: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:23,958 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:23,959 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 180 treesize of output 67 [2021-04-15 03:49:23,962 INFO L550 ElimStorePlain]: Start of recursive call 284: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:24,085 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:24,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:24,089 INFO L550 ElimStorePlain]: Start of recursive call 285: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:24,208 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:24,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:24,211 INFO L550 ElimStorePlain]: Start of recursive call 286: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:24,331 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:24,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:24,335 INFO L550 ElimStorePlain]: Start of recursive call 287: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:24,451 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:24,452 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 190 treesize of output 65 [2021-04-15 03:49:24,454 INFO L550 ElimStorePlain]: Start of recursive call 288: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:24,568 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:24,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:24,571 INFO L550 ElimStorePlain]: Start of recursive call 289: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:24,700 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:24,700 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 185 treesize of output 66 [2021-04-15 03:49:24,703 INFO L550 ElimStorePlain]: Start of recursive call 290: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:24,822 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:24,822 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 190 treesize of output 63 [2021-04-15 03:49:24,825 INFO L550 ElimStorePlain]: Start of recursive call 291: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:24,946 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:24,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:24,949 INFO L550 ElimStorePlain]: Start of recursive call 292: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:25,068 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:25,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:25,072 INFO L550 ElimStorePlain]: Start of recursive call 293: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:25,185 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:25,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:25,188 INFO L550 ElimStorePlain]: Start of recursive call 294: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:25,309 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:25,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:25,312 INFO L550 ElimStorePlain]: Start of recursive call 295: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:25,432 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:25,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:25,435 INFO L550 ElimStorePlain]: Start of recursive call 296: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:25,554 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:25,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:25,556 INFO L550 ElimStorePlain]: Start of recursive call 297: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:25,680 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:25,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:25,683 INFO L550 ElimStorePlain]: Start of recursive call 298: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:25,804 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:25,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:25,807 INFO L550 ElimStorePlain]: Start of recursive call 299: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:25,936 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:25,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:25,939 INFO L550 ElimStorePlain]: Start of recursive call 300: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:26,056 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:26,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:26,059 INFO L550 ElimStorePlain]: Start of recursive call 301: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:26,171 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:26,172 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 65 [2021-04-15 03:49:26,174 INFO L550 ElimStorePlain]: Start of recursive call 302: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:26,249 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:26,250 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 209 treesize of output 60 [2021-04-15 03:49:26,252 INFO L550 ElimStorePlain]: Start of recursive call 303: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:26,329 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:26,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:49:26,332 INFO L550 ElimStorePlain]: Start of recursive call 304: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:26,441 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:26,441 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 190 treesize of output 63 [2021-04-15 03:49:26,444 INFO L550 ElimStorePlain]: Start of recursive call 305: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:26,552 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:26,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:26,556 INFO L550 ElimStorePlain]: Start of recursive call 306: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:26,671 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:26,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:26,674 INFO L550 ElimStorePlain]: Start of recursive call 307: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:26,789 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:26,789 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 175 treesize of output 62 [2021-04-15 03:49:26,792 INFO L550 ElimStorePlain]: Start of recursive call 308: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:26,871 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:26,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:49:26,874 INFO L550 ElimStorePlain]: Start of recursive call 309: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:26,987 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:26,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:26,990 INFO L550 ElimStorePlain]: Start of recursive call 310: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:27,106 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:27,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:27,110 INFO L550 ElimStorePlain]: Start of recursive call 311: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:27,213 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:27,213 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 180 treesize of output 63 [2021-04-15 03:49:27,216 INFO L550 ElimStorePlain]: Start of recursive call 312: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:27,332 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:27,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:27,335 INFO L550 ElimStorePlain]: Start of recursive call 313: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:27,446 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:27,446 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 190 treesize of output 61 [2021-04-15 03:49:27,449 INFO L550 ElimStorePlain]: Start of recursive call 314: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:27,527 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:27,527 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 181 treesize of output 50 [2021-04-15 03:49:27,530 INFO L550 ElimStorePlain]: Start of recursive call 315: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:27,638 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:27,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:27,641 INFO L550 ElimStorePlain]: Start of recursive call 316: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:27,720 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:27,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:49:27,724 INFO L550 ElimStorePlain]: Start of recursive call 317: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:27,834 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:27,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:27,837 INFO L550 ElimStorePlain]: Start of recursive call 318: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:27,948 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:27,948 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 64 [2021-04-15 03:49:27,951 INFO L550 ElimStorePlain]: Start of recursive call 319: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:28,065 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:28,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:28,068 INFO L550 ElimStorePlain]: Start of recursive call 320: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:28,163 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:28,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:28,165 INFO L550 ElimStorePlain]: Start of recursive call 321: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:28,240 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:28,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:28,243 INFO L550 ElimStorePlain]: Start of recursive call 322: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:28,317 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:28,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:28,319 INFO L550 ElimStorePlain]: Start of recursive call 323: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:28,388 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:28,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:28,390 INFO L550 ElimStorePlain]: Start of recursive call 324: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:28,443 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:28,443 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 177 treesize of output 54 [2021-04-15 03:49:28,445 INFO L550 ElimStorePlain]: Start of recursive call 325: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:28,510 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:28,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:49:28,513 INFO L550 ElimStorePlain]: Start of recursive call 326: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:28,623 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:28,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:28,627 INFO L550 ElimStorePlain]: Start of recursive call 327: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:28,734 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:28,734 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 190 treesize of output 65 [2021-04-15 03:49:28,736 INFO L550 ElimStorePlain]: Start of recursive call 328: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:28,843 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:28,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:28,846 INFO L550 ElimStorePlain]: Start of recursive call 329: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:28,955 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:28,955 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 195 treesize of output 66 [2021-04-15 03:49:28,958 INFO L550 ElimStorePlain]: Start of recursive call 330: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:29,050 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:29,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:29,054 INFO L550 ElimStorePlain]: Start of recursive call 331: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:29,160 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:29,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:29,163 INFO L550 ElimStorePlain]: Start of recursive call 332: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:29,270 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:29,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:29,273 INFO L550 ElimStorePlain]: Start of recursive call 333: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:29,347 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:29,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:49:29,350 INFO L550 ElimStorePlain]: Start of recursive call 334: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:29,430 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:49:29,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:49:29,434 INFO L550 ElimStorePlain]: Start of recursive call 335: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:29,540 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:29,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:29,543 INFO L550 ElimStorePlain]: Start of recursive call 336: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:29,648 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:29,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:29,651 INFO L550 ElimStorePlain]: Start of recursive call 337: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:29,752 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:29,753 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 63 [2021-04-15 03:49:29,755 INFO L550 ElimStorePlain]: Start of recursive call 338: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:29,855 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:29,856 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 190 treesize of output 67 [2021-04-15 03:49:29,859 INFO L550 ElimStorePlain]: Start of recursive call 339: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:29,872 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-04-15 03:49:29,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select 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 [2021-04-15 03:49:29,875 INFO L550 ElimStorePlain]: Start of recursive call 340: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:29,908 INFO L628 ElimStorePlain]: treesize reduction 38, result has 7.3 percent of original size [2021-04-15 03:49:29,909 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:49:29,910 INFO L247 ElimStorePlain]: Needed 340 recursive calls to eliminate 2 variables, input treesize:63002, output treesize:3 [2021-04-15 03:49:29,932 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:49:29,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:49:29,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16] total 23 [2021-04-15 03:49:29,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514645123] [2021-04-15 03:49:29,933 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-04-15 03:49:29,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:49:29,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-04-15 03:49:29,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2021-04-15 03:49:29,933 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) [2021-04-15 03:49:31,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:49:31,082 INFO L93 Difference]: Finished difference Result 57076 states and 146192 transitions. [2021-04-15 03:49:31,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-04-15 03:49:31,084 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 [2021-04-15 03:49:31,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:49:31,188 INFO L225 Difference]: With dead ends: 57076 [2021-04-15 03:49:31,188 INFO L226 Difference]: Without dead ends: 57046 [2021-04-15 03:49:31,188 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 5686.7ms TimeCoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2021-04-15 03:49:31,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57046 states. [2021-04-15 03:49:32,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57046 to 55615. [2021-04-15 03:49:32,267 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) [2021-04-15 03:49:32,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55615 states to 55615 states and 142626 transitions. [2021-04-15 03:49:32,396 INFO L78 Accepts]: Start accepts. Automaton has 55615 states and 142626 transitions. Word has length 42 [2021-04-15 03:49:32,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:49:32,396 INFO L480 AbstractCegarLoop]: Abstraction has 55615 states and 142626 transitions. [2021-04-15 03:49:32,397 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) [2021-04-15 03:49:32,397 INFO L276 IsEmpty]: Start isEmpty. Operand 55615 states and 142626 transitions. [2021-04-15 03:49:32,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-04-15 03:49:32,434 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:49:32,434 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:49:32,635 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 142 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6088 [2021-04-15 03:49:32,635 INFO L428 AbstractCegarLoop]: === Iteration 147 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:49:32,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:49:32,639 INFO L82 PathProgramCache]: Analyzing trace with hash -689351820, now seen corresponding path program 142 times [2021-04-15 03:49:32,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:49:32,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352969081] [2021-04-15 03:49:32,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:49:32,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:49:32,760 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:49:32,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352969081] [2021-04-15 03:49:32,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14459884] [2021-04-15 03:49:32,761 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 [2021-04-15 03:49:32,786 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 03:49:32,786 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:49:32,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 45 conjunts are in the unsatisfiable core [2021-04-15 03:49:32,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:49:33,444 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2021-04-15 03:49:33,445 INFO L354 Elim1Store]: treesize reduction 72, result has 60.2 percent of original size [2021-04-15 03:49:33,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2021-04-15 03:49:33,450 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:49:33,602 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-15 03:49:33,603 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:49:33,605 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:49:33,605 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:177, output treesize:432 [2021-04-15 03:49:33,810 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-15 03:49:36,993 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2021-04-15 03:49:38,053 WARN L205 SmtUtils]: Spent 958.00 ms on a formula simplification. DAG size of input: 621 DAG size of output: 621 [2021-04-15 03:49:38,850 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-04-15 03:49:40,232 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1196 [2021-04-15 03:49:41,322 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1196 [2021-04-15 03:49:43,286 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1196 [2021-04-15 03:50:03,564 WARN L205 SmtUtils]: Spent 13.63 s on a formula simplification. DAG size of input: 1196 DAG size of output: 58 [2021-04-15 03:50:05,366 INFO L446 ElimStorePlain]: Different costs {15=[v_prenex_155], 21=[v_prenex_160, f, v_prenex_156, v_prenex_157, v_prenex_158, v_prenex_159]} [2021-04-15 03:50:05,382 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-04-15 03:50:05,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:50:05,384 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:50:05,929 WARN L205 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 106 [2021-04-15 03:50:05,930 INFO L628 ElimStorePlain]: treesize reduction 901, result has 35.0 percent of original size [2021-04-15 03:50:06,018 INFO L354 Elim1Store]: treesize reduction 106, result has 12.4 percent of original size [2021-04-15 03:50:06,019 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 79 treesize of output 46 [2021-04-15 03:50:06,022 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-04-15 03:50:06,174 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-15 03:50:06,174 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:50:06,494 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 50 [2021-04-15 03:50:06,495 INFO L354 Elim1Store]: treesize reduction 84, result has 50.3 percent of original size [2021-04-15 03:50:06,495 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 109 treesize of output 130 [2021-04-15 03:50:06,500 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-04-15 03:50:06,625 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-15 03:50:06,626 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:50:06,704 INFO L354 Elim1Store]: treesize reduction 111, result has 8.3 percent of original size [2021-04-15 03:50:06,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select 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 [2021-04-15 03:50:06,707 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-04-15 03:50:06,827 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-04-15 03:50:06,828 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:50:06,954 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 22 [2021-04-15 03:50:06,955 INFO L354 Elim1Store]: treesize reduction 94, result has 22.3 percent of original size [2021-04-15 03:50:06,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 66 treesize of output 55 [2021-04-15 03:50:06,959 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-04-15 03:50:07,066 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-15 03:50:07,066 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:50:07,265 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 33 [2021-04-15 03:50:07,266 INFO L354 Elim1Store]: treesize reduction 68, result has 43.8 percent of original size [2021-04-15 03:50:07,266 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 88 treesize of output 85 [2021-04-15 03:50:07,271 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-04-15 03:50:07,362 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:50:07,543 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 32 [2021-04-15 03:50:07,544 INFO L354 Elim1Store]: treesize reduction 126, result has 25.4 percent of original size [2021-04-15 03:50:07,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 56 treesize of output 71 [2021-04-15 03:50:07,548 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-04-15 03:50:07,635 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:50:07,643 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 7 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:50:07,643 INFO L247 ElimStorePlain]: Needed 8 recursive calls to eliminate 14 variables, input treesize:1618, output treesize:3 [2021-04-15 03:50:07,670 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:50:07,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:50:07,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16] total 23 [2021-04-15 03:50:07,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593934444] [2021-04-15 03:50:07,671 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-04-15 03:50:07,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:50:07,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-04-15 03:50:07,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=450, Unknown=1, NotChecked=0, Total=506 [2021-04-15 03:50:07,671 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) [2021-04-15 03:50:09,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:50:09,407 INFO L93 Difference]: Finished difference Result 58151 states and 148884 transitions. [2021-04-15 03:50:09,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 03:50:09,410 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 [2021-04-15 03:50:09,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:50:09,534 INFO L225 Difference]: With dead ends: 58151 [2021-04-15 03:50:09,534 INFO L226 Difference]: Without dead ends: 58110 [2021-04-15 03:50:09,534 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 21886.5ms TimeCoverageRelationStatistics Valid=55, Invalid=450, Unknown=1, NotChecked=0, Total=506 [2021-04-15 03:50:09,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58110 states. [2021-04-15 03:50:10,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58110 to 56750. [2021-04-15 03:50:10,630 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) [2021-04-15 03:50:10,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56750 states to 56750 states and 145847 transitions. [2021-04-15 03:50:10,773 INFO L78 Accepts]: Start accepts. Automaton has 56750 states and 145847 transitions. Word has length 42 [2021-04-15 03:50:10,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:50:10,773 INFO L480 AbstractCegarLoop]: Abstraction has 56750 states and 145847 transitions. [2021-04-15 03:50:10,773 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) [2021-04-15 03:50:10,773 INFO L276 IsEmpty]: Start isEmpty. Operand 56750 states and 145847 transitions. [2021-04-15 03:50:10,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-04-15 03:50:10,816 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:50:10,817 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:50:11,017 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 143 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8590 [2021-04-15 03:50:11,017 INFO L428 AbstractCegarLoop]: === Iteration 148 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:50:11,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:50:11,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1940096396, now seen corresponding path program 143 times [2021-04-15 03:50:11,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:50:11,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775211645] [2021-04-15 03:50:11,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:50:11,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:50:11,154 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:50:11,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775211645] [2021-04-15 03:50:11,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791942116] [2021-04-15 03:50:11,154 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 [2021-04-15 03:50:11,181 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-04-15 03:50:11,181 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:50:11,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 53 conjunts are in the unsatisfiable core [2021-04-15 03:50:11,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:50:12,360 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 65 [2021-04-15 03:50:12,361 INFO L354 Elim1Store]: treesize reduction 128, result has 43.1 percent of original size [2021-04-15 03:50:12,361 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 [2021-04-15 03:50:16,118 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-15 03:50:19,899 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-04-15 03:50:20,077 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-15 03:50:20,078 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 03:50:20,916 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2021-04-15 03:50:24,161 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-04-15 03:50:24,161 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:206, output treesize:433 [2021-04-15 03:50:30,018 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-15 03:50:31,504 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2021-04-15 03:50:32,522 WARN L205 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 621 DAG size of output: 621 [2021-04-15 03:50:32,752 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-04-15 03:50:34,751 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1196 [2021-04-15 03:50:36,001 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification that was a NOOP. DAG size: 1196 [2021-04-15 03:50:38,130 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1196 [2021-04-15 03:51:04,341 WARN L205 SmtUtils]: Spent 14.59 s on a formula simplification. DAG size of input: 1196 DAG size of output: 58 [2021-04-15 03:51:05,486 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 21 [2021-04-15 03:51:05,487 INFO L354 Elim1Store]: treesize reduction 141, result has 16.6 percent of original size [2021-04-15 03:51:05,487 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 13 new quantified variables, introduced 21 case distinctions, treesize of input 228 treesize of output 99 [2021-04-15 03:51:05,492 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-04-15 03:51:06,064 WARN L205 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 108 [2021-04-15 03:51:06,065 INFO L628 ElimStorePlain]: treesize reduction 911, result has 33.7 percent of original size [2021-04-15 03:51:06,411 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 50 [2021-04-15 03:51:06,412 INFO L354 Elim1Store]: treesize reduction 84, result has 50.3 percent of original size [2021-04-15 03:51:06,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2021-04-15 03:51:06,416 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-04-15 03:51:06,459 INFO L628 ElimStorePlain]: treesize reduction 362, result has 0.8 percent of original size [2021-04-15 03:51:06,459 INFO L518 ElimStorePlain]: Eliminatee v_prenex_172 vanished before elimination [2021-04-15 03:51:06,459 INFO L518 ElimStorePlain]: Eliminatee f vanished before elimination [2021-04-15 03:51:06,459 INFO L518 ElimStorePlain]: Eliminatee v_prenex_167 vanished before elimination [2021-04-15 03:51:06,459 INFO L518 ElimStorePlain]: Eliminatee v_prenex_168 vanished before elimination [2021-04-15 03:51:06,459 INFO L518 ElimStorePlain]: Eliminatee v_prenex_169 vanished before elimination [2021-04-15 03:51:06,460 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 7 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-04-15 03:51:06,461 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 14 variables, input treesize:1590, output treesize:3 [2021-04-15 03:51:06,488 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 03:51:06,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:51:06,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 17] total 24 [2021-04-15 03:51:06,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621864186] [2021-04-15 03:51:06,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-04-15 03:51:06,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:51:06,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-04-15 03:51:06,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=488, Unknown=2, NotChecked=0, Total=552 [2021-04-15 03:51:06,490 INFO L87 Difference]: Start difference. First operand 56750 states and 145847 transitions. Second operand has 24 states, 24 states have (on average 2.8333333333333335) internal successors, (68), 24 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) [2021-04-15 03:51:07,910 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 235 [2021-04-15 03:51:08,297 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 232 [2021-04-15 03:51:09,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:51:09,195 INFO L93 Difference]: Finished difference Result 58133 states and 149157 transitions. [2021-04-15 03:51:09,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-04-15 03:51:09,197 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.8333333333333335) internal successors, (68), 24 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 [2021-04-15 03:51:09,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:51:09,324 INFO L225 Difference]: With dead ends: 58133 [2021-04-15 03:51:09,324 INFO L226 Difference]: Without dead ends: 58126 [2021-04-15 03:51:09,325 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 28166.7ms TimeCoverageRelationStatistics Valid=78, Invalid=622, Unknown=2, NotChecked=0, Total=702 [2021-04-15 03:51:09,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58126 states. [2021-04-15 03:51:10,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58126 to 57370. [2021-04-15 03:51:10,297 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) [2021-04-15 03:51:10,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57370 states to 57370 states and 147596 transitions. [2021-04-15 03:51:10,449 INFO L78 Accepts]: Start accepts. Automaton has 57370 states and 147596 transitions. Word has length 42 [2021-04-15 03:51:10,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:51:10,449 INFO L480 AbstractCegarLoop]: Abstraction has 57370 states and 147596 transitions. [2021-04-15 03:51:10,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.8333333333333335) internal successors, (68), 24 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) [2021-04-15 03:51:10,450 INFO L276 IsEmpty]: Start isEmpty. Operand 57370 states and 147596 transitions. [2021-04-15 03:51:10,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-04-15 03:51:10,496 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:51:10,497 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:51:10,697 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9171,144 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:51:10,697 INFO L428 AbstractCegarLoop]: === Iteration 149 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:51:10,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:51:10,698 INFO L82 PathProgramCache]: Analyzing trace with hash -2129488650, now seen corresponding path program 144 times [2021-04-15 03:51:10,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:51:10,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396071328] [2021-04-15 03:51:10,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:51:10,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:51:11,294 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 49 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:51:11,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396071328] [2021-04-15 03:51:11,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457816461] [2021-04-15 03:51:11,294 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 [2021-04-15 03:51:11,325 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2021-04-15 03:51:11,325 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:51:11,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-04-15 03:51:11,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:51:12,635 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 49 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:51:12,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:51:12,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19] total 37 [2021-04-15 03:51:12,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835356426] [2021-04-15 03:51:12,635 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-04-15 03:51:12,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:51:12,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-04-15 03:51:12,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=1143, Unknown=0, NotChecked=0, Total=1406 [2021-04-15 03:51:12,636 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) [2021-04-15 03:51:21,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:51:21,360 INFO L93 Difference]: Finished difference Result 61578 states and 156735 transitions. [2021-04-15 03:51:21,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2021-04-15 03:51:21,362 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 [2021-04-15 03:51:21,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:51:21,510 INFO L225 Difference]: With dead ends: 61578 [2021-04-15 03:51:21,510 INFO L226 Difference]: Without dead ends: 61578 [2021-04-15 03:51:21,513 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5718 ImplicationChecksByTransitivity, 7868.7ms TimeCoverageRelationStatistics Valid=4657, Invalid=13165, Unknown=0, NotChecked=0, Total=17822 [2021-04-15 03:51:21,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61578 states. [2021-04-15 03:51:22,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61578 to 54115. [2021-04-15 03:51:22,756 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) [2021-04-15 03:51:22,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54115 states to 54115 states and 138911 transitions. [2021-04-15 03:51:22,903 INFO L78 Accepts]: Start accepts. Automaton has 54115 states and 138911 transitions. Word has length 44 [2021-04-15 03:51:22,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:51:22,903 INFO L480 AbstractCegarLoop]: Abstraction has 54115 states and 138911 transitions. [2021-04-15 03:51:22,903 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) [2021-04-15 03:51:22,903 INFO L276 IsEmpty]: Start isEmpty. Operand 54115 states and 138911 transitions. [2021-04-15 03:51:22,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-04-15 03:51:22,953 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:51:22,953 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:51:23,153 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12110,145 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:51:23,154 INFO L428 AbstractCegarLoop]: === Iteration 150 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:51:23,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:51:23,155 INFO L82 PathProgramCache]: Analyzing trace with hash 768782642, now seen corresponding path program 145 times [2021-04-15 03:51:23,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:51:23,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877182482] [2021-04-15 03:51:23,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:51:23,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:51:23,706 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 64 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:51:23,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877182482] [2021-04-15 03:51:23,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096614242] [2021-04-15 03:51:23,706 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 [2021-04-15 03:51:23,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:51:23,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-04-15 03:51:23,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:51:25,339 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 64 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:51:25,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:51:25,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2021-04-15 03:51:25,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38731386] [2021-04-15 03:51:25,340 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-04-15 03:51:25,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:51:25,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-04-15 03:51:25,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=1107, Unknown=0, NotChecked=0, Total=1332 [2021-04-15 03:51:25,340 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) [2021-04-15 03:51:40,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:51:40,286 INFO L93 Difference]: Finished difference Result 71421 states and 180739 transitions. [2021-04-15 03:51:40,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 164 states. [2021-04-15 03:51:40,288 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 [2021-04-15 03:51:40,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:51:40,427 INFO L225 Difference]: With dead ends: 71421 [2021-04-15 03:51:40,427 INFO L226 Difference]: Without dead ends: 71182 [2021-04-15 03:51:40,429 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12672 ImplicationChecksByTransitivity, 14383.0ms TimeCoverageRelationStatistics Valid=7124, Invalid=28032, Unknown=0, NotChecked=0, Total=35156 [2021-04-15 03:51:40,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71182 states. [2021-04-15 03:51:41,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71182 to 55547. [2021-04-15 03:51:41,691 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) [2021-04-15 03:51:41,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55547 states to 55547 states and 142594 transitions. [2021-04-15 03:51:41,823 INFO L78 Accepts]: Start accepts. Automaton has 55547 states and 142594 transitions. Word has length 44 [2021-04-15 03:51:41,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:51:41,823 INFO L480 AbstractCegarLoop]: Abstraction has 55547 states and 142594 transitions. [2021-04-15 03:51:41,824 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) [2021-04-15 03:51:41,824 INFO L276 IsEmpty]: Start isEmpty. Operand 55547 states and 142594 transitions. [2021-04-15 03:51:41,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-04-15 03:51:41,868 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:51:41,868 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:51:42,068 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12111,146 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:51:42,069 INFO L428 AbstractCegarLoop]: === Iteration 151 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:51:42,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:51:42,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1205657702, now seen corresponding path program 146 times [2021-04-15 03:51:42,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:51:42,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239190284] [2021-04-15 03:51:42,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:51:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:51:42,616 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 64 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:51:42,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239190284] [2021-04-15 03:51:42,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421277766] [2021-04-15 03:51:42,617 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 [2021-04-15 03:51:42,642 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 03:51:42,642 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:51:42,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-04-15 03:51:42,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:51:43,917 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 64 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:51:43,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:51:43,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 19] total 29 [2021-04-15 03:51:43,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803494449] [2021-04-15 03:51:43,917 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-04-15 03:51:43,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:51:43,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-04-15 03:51:43,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=722, Unknown=0, NotChecked=0, Total=870 [2021-04-15 03:51:43,918 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) [2021-04-15 03:51:55,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:51:55,348 INFO L93 Difference]: Finished difference Result 94822 states and 241988 transitions. [2021-04-15 03:51:55,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2021-04-15 03:51:55,350 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 [2021-04-15 03:51:55,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:51:55,560 INFO L225 Difference]: With dead ends: 94822 [2021-04-15 03:51:55,560 INFO L226 Difference]: Without dead ends: 94798 [2021-04-15 03:51:55,562 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11051 ImplicationChecksByTransitivity, 10067.5ms TimeCoverageRelationStatistics Valid=7112, Invalid=20610, Unknown=0, NotChecked=0, Total=27722 [2021-04-15 03:51:55,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94798 states. [2021-04-15 03:51:57,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94798 to 72019. [2021-04-15 03:51:57,314 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) [2021-04-15 03:51:57,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72019 states to 72019 states and 184885 transitions. [2021-04-15 03:51:57,533 INFO L78 Accepts]: Start accepts. Automaton has 72019 states and 184885 transitions. Word has length 44 [2021-04-15 03:51:57,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:51:57,533 INFO L480 AbstractCegarLoop]: Abstraction has 72019 states and 184885 transitions. [2021-04-15 03:51:57,533 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) [2021-04-15 03:51:57,533 INFO L276 IsEmpty]: Start isEmpty. Operand 72019 states and 184885 transitions. [2021-04-15 03:51:57,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-04-15 03:51:57,583 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:51:57,583 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:51:57,784 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 147 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12112 [2021-04-15 03:51:57,784 INFO L428 AbstractCegarLoop]: === Iteration 152 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:51:57,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:51:57,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1705411512, now seen corresponding path program 147 times [2021-04-15 03:51:57,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:51:57,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276427072] [2021-04-15 03:51:57,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:51:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:51:58,119 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 57 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:51:58,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276427072] [2021-04-15 03:51:58,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174305799] [2021-04-15 03:51:58,120 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 [2021-04-15 03:51:58,151 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-04-15 03:51:58,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:51:58,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-04-15 03:51:58,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:51:59,628 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 57 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:51:59,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:51:59,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 19] total 29 [2021-04-15 03:51:59,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737882106] [2021-04-15 03:51:59,629 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-04-15 03:51:59,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:51:59,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-04-15 03:51:59,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=679, Unknown=0, NotChecked=0, Total=870 [2021-04-15 03:51:59,630 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) [2021-04-15 03:52:07,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:52:07,776 INFO L93 Difference]: Finished difference Result 73486 states and 187932 transitions. [2021-04-15 03:52:07,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-04-15 03:52:07,778 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 [2021-04-15 03:52:07,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:52:07,934 INFO L225 Difference]: With dead ends: 73486 [2021-04-15 03:52:07,935 INFO L226 Difference]: Without dead ends: 73482 [2021-04-15 03:52:07,936 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5767 ImplicationChecksByTransitivity, 8119.2ms TimeCoverageRelationStatistics Valid=3791, Invalid=12211, Unknown=0, NotChecked=0, Total=16002 [2021-04-15 03:52:08,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73482 states. [2021-04-15 03:52:09,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73482 to 72019. [2021-04-15 03:52:09,215 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) [2021-04-15 03:52:09,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72019 states to 72019 states and 184853 transitions. [2021-04-15 03:52:09,658 INFO L78 Accepts]: Start accepts. Automaton has 72019 states and 184853 transitions. Word has length 44 [2021-04-15 03:52:09,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:52:09,659 INFO L480 AbstractCegarLoop]: Abstraction has 72019 states and 184853 transitions. [2021-04-15 03:52:09,659 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) [2021-04-15 03:52:09,659 INFO L276 IsEmpty]: Start isEmpty. Operand 72019 states and 184853 transitions. [2021-04-15 03:52:09,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-04-15 03:52:09,713 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:52:09,713 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:52:09,913 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 148 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12113 [2021-04-15 03:52:09,913 INFO L428 AbstractCegarLoop]: === Iteration 153 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:52:09,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:52:09,914 INFO L82 PathProgramCache]: Analyzing trace with hash 823415346, now seen corresponding path program 148 times [2021-04-15 03:52:09,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:52:09,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153964686] [2021-04-15 03:52:09,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:52:09,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:52:10,226 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 69 proven. 43 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:52:10,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153964686] [2021-04-15 03:52:10,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602645009] [2021-04-15 03:52:10,226 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 [2021-04-15 03:52:10,252 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 03:52:10,252 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:52:10,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-04-15 03:52:10,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:52:11,529 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 57 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:52:11,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:52:11,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 19] total 29 [2021-04-15 03:52:11,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137229402] [2021-04-15 03:52:11,530 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-04-15 03:52:11,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:52:11,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-04-15 03:52:11,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=724, Unknown=0, NotChecked=0, Total=870 [2021-04-15 03:52:11,530 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) [2021-04-15 03:52:18,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:52:18,646 INFO L93 Difference]: Finished difference Result 89850 states and 230059 transitions. [2021-04-15 03:52:18,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-04-15 03:52:18,648 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 [2021-04-15 03:52:18,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:52:18,856 INFO L225 Difference]: With dead ends: 89850 [2021-04-15 03:52:18,856 INFO L226 Difference]: Without dead ends: 89823 [2021-04-15 03:52:18,857 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3652 ImplicationChecksByTransitivity, 6097.1ms TimeCoverageRelationStatistics Valid=2745, Invalid=8385, Unknown=0, NotChecked=0, Total=11130 [2021-04-15 03:52:18,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89823 states. [2021-04-15 03:52:20,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89823 to 71875. [2021-04-15 03:52:20,333 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) [2021-04-15 03:52:20,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71875 states to 71875 states and 185004 transitions. [2021-04-15 03:52:20,542 INFO L78 Accepts]: Start accepts. Automaton has 71875 states and 185004 transitions. Word has length 44 [2021-04-15 03:52:20,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:52:20,542 INFO L480 AbstractCegarLoop]: Abstraction has 71875 states and 185004 transitions. [2021-04-15 03:52:20,542 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) [2021-04-15 03:52:20,542 INFO L276 IsEmpty]: Start isEmpty. Operand 71875 states and 185004 transitions. [2021-04-15 03:52:20,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-04-15 03:52:20,863 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:52:20,863 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:52:21,088 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 149 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12114 [2021-04-15 03:52:21,089 INFO L428 AbstractCegarLoop]: === Iteration 154 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:52:21,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:52:21,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1963210434, now seen corresponding path program 149 times [2021-04-15 03:52:21,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:52:21,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864055682] [2021-04-15 03:52:21,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:52:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:52:21,442 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 51 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:52:21,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864055682] [2021-04-15 03:52:21,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489740654] [2021-04-15 03:52:21,443 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 [2021-04-15 03:52:21,473 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-04-15 03:52:21,473 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:52:21,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-04-15 03:52:21,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:52:22,860 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 51 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:52:22,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:52:22,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 19] total 30 [2021-04-15 03:52:22,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67759391] [2021-04-15 03:52:22,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-04-15 03:52:22,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:52:22,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-04-15 03:52:22,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=744, Unknown=0, NotChecked=0, Total=930 [2021-04-15 03:52:22,862 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) [2021-04-15 03:52:24,519 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 12 [2021-04-15 03:52:32,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:52:32,789 INFO L93 Difference]: Finished difference Result 76106 states and 194599 transitions. [2021-04-15 03:52:32,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2021-04-15 03:52:32,793 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 [2021-04-15 03:52:32,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:52:32,983 INFO L225 Difference]: With dead ends: 76106 [2021-04-15 03:52:32,983 INFO L226 Difference]: Without dead ends: 76084 [2021-04-15 03:52:32,985 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5971 ImplicationChecksByTransitivity, 8900.7ms TimeCoverageRelationStatistics Valid=3872, Invalid=12640, Unknown=0, NotChecked=0, Total=16512 [2021-04-15 03:52:33,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76084 states. [2021-04-15 03:52:34,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76084 to 73137. [2021-04-15 03:52:34,578 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) [2021-04-15 03:52:34,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73137 states to 73137 states and 188357 transitions. [2021-04-15 03:52:34,811 INFO L78 Accepts]: Start accepts. Automaton has 73137 states and 188357 transitions. Word has length 44 [2021-04-15 03:52:34,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:52:34,812 INFO L480 AbstractCegarLoop]: Abstraction has 73137 states and 188357 transitions. [2021-04-15 03:52:34,812 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) [2021-04-15 03:52:34,812 INFO L276 IsEmpty]: Start isEmpty. Operand 73137 states and 188357 transitions. [2021-04-15 03:52:34,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-04-15 03:52:34,870 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:52:34,870 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:52:35,071 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 150 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12115 [2021-04-15 03:52:35,071 INFO L428 AbstractCegarLoop]: === Iteration 155 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:52:35,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:52:35,071 INFO L82 PathProgramCache]: Analyzing trace with hash -637321666, now seen corresponding path program 150 times [2021-04-15 03:52:35,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:52:35,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161761354] [2021-04-15 03:52:35,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:52:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:52:35,467 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 42 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:52:35,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161761354] [2021-04-15 03:52:35,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768643698] [2021-04-15 03:52:35,468 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 [2021-04-15 03:52:35,500 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2021-04-15 03:52:35,500 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:52:35,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-04-15 03:52:35,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:52:37,296 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 42 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:52:37,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:52:37,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 19] total 31 [2021-04-15 03:52:37,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15655212] [2021-04-15 03:52:37,297 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-04-15 03:52:37,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:52:37,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-04-15 03:52:37,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=807, Unknown=0, NotChecked=0, Total=992 [2021-04-15 03:52:37,297 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) [2021-04-15 03:52:42,241 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 13 [2021-04-15 03:52:47,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:52:47,123 INFO L93 Difference]: Finished difference Result 78532 states and 200306 transitions. [2021-04-15 03:52:47,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-04-15 03:52:47,126 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 [2021-04-15 03:52:47,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:52:47,314 INFO L225 Difference]: With dead ends: 78532 [2021-04-15 03:52:47,315 INFO L226 Difference]: Without dead ends: 78486 [2021-04-15 03:52:47,315 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6281 ImplicationChecksByTransitivity, 8881.3ms TimeCoverageRelationStatistics Valid=3964, Invalid=13066, Unknown=0, NotChecked=0, Total=17030 [2021-04-15 03:52:47,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78486 states. [2021-04-15 03:52:48,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78486 to 73094. [2021-04-15 03:52:48,750 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) [2021-04-15 03:52:49,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73094 states to 73094 states and 188563 transitions. [2021-04-15 03:52:49,231 INFO L78 Accepts]: Start accepts. Automaton has 73094 states and 188563 transitions. Word has length 44 [2021-04-15 03:52:49,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:52:49,231 INFO L480 AbstractCegarLoop]: Abstraction has 73094 states and 188563 transitions. [2021-04-15 03:52:49,232 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) [2021-04-15 03:52:49,232 INFO L276 IsEmpty]: Start isEmpty. Operand 73094 states and 188563 transitions. [2021-04-15 03:52:49,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-04-15 03:52:49,296 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:52:49,296 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:52:49,517 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 151 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12116 [2021-04-15 03:52:49,517 INFO L428 AbstractCegarLoop]: === Iteration 156 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:52:49,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:52:49,517 INFO L82 PathProgramCache]: Analyzing trace with hash -77703494, now seen corresponding path program 151 times [2021-04-15 03:52:49,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:52:49,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174832946] [2021-04-15 03:52:49,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:52:49,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:52:49,919 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 37 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:52:49,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174832946] [2021-04-15 03:52:49,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814295491] [2021-04-15 03:52:49,920 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 [2021-04-15 03:52:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:52:49,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-04-15 03:52:49,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:52:51,432 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 37 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:52:51,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:52:51,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 19] total 32 [2021-04-15 03:52:51,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307906862] [2021-04-15 03:52:51,432 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-04-15 03:52:51,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:52:51,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-04-15 03:52:51,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=868, Unknown=0, NotChecked=0, Total=1056 [2021-04-15 03:52:51,433 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) [2021-04-15 03:52:54,302 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 12 [2021-04-15 03:53:01,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:53:01,778 INFO L93 Difference]: Finished difference Result 79388 states and 202095 transitions. [2021-04-15 03:53:01,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2021-04-15 03:53:01,782 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 [2021-04-15 03:53:01,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:53:01,992 INFO L225 Difference]: With dead ends: 79388 [2021-04-15 03:53:01,992 INFO L226 Difference]: Without dead ends: 79324 [2021-04-15 03:53:01,994 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6570 ImplicationChecksByTransitivity, 9265.5ms TimeCoverageRelationStatistics Valid=4066, Invalid=13490, Unknown=0, NotChecked=0, Total=17556 [2021-04-15 03:53:02,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79324 states. [2021-04-15 03:53:03,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79324 to 70876. [2021-04-15 03:53:03,735 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) [2021-04-15 03:53:03,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70876 states to 70876 states and 183285 transitions. [2021-04-15 03:53:03,989 INFO L78 Accepts]: Start accepts. Automaton has 70876 states and 183285 transitions. Word has length 44 [2021-04-15 03:53:03,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:53:03,990 INFO L480 AbstractCegarLoop]: Abstraction has 70876 states and 183285 transitions. [2021-04-15 03:53:03,990 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) [2021-04-15 03:53:03,990 INFO L276 IsEmpty]: Start isEmpty. Operand 70876 states and 183285 transitions. [2021-04-15 03:53:04,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-04-15 03:53:04,052 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:53:04,052 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:53:04,252 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 152 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12117 [2021-04-15 03:53:04,252 INFO L428 AbstractCegarLoop]: === Iteration 157 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:53:04,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:53:04,253 INFO L82 PathProgramCache]: Analyzing trace with hash 844447798, now seen corresponding path program 152 times [2021-04-15 03:53:04,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:53:04,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563563397] [2021-04-15 03:53:04,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:53:04,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:53:04,781 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 36 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:53:04,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563563397] [2021-04-15 03:53:04,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132205612] [2021-04-15 03:53:04,782 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 [2021-04-15 03:53:04,809 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 03:53:04,809 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:53:04,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-04-15 03:53:04,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:53:06,480 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 36 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:53:06,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:53:06,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 19] total 33 [2021-04-15 03:53:06,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647791214] [2021-04-15 03:53:06,481 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-04-15 03:53:06,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:53:06,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-04-15 03:53:06,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=927, Unknown=0, NotChecked=0, Total=1122 [2021-04-15 03:53:06,482 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) [2021-04-15 03:53:06,845 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 9 [2021-04-15 03:53:17,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:53:17,070 INFO L93 Difference]: Finished difference Result 78292 states and 198968 transitions. [2021-04-15 03:53:17,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-04-15 03:53:17,073 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 [2021-04-15 03:53:17,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:53:17,371 INFO L225 Difference]: With dead ends: 78292 [2021-04-15 03:53:17,371 INFO L226 Difference]: Without dead ends: 78222 [2021-04-15 03:53:17,372 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6842 ImplicationChecksByTransitivity, 9830.7ms TimeCoverageRelationStatistics Valid=4177, Invalid=13913, Unknown=0, NotChecked=0, Total=18090 [2021-04-15 03:53:17,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78222 states. [2021-04-15 03:53:18,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78222 to 66237. [2021-04-15 03:53:18,794 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) [2021-04-15 03:53:18,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66237 states to 66237 states and 171709 transitions. [2021-04-15 03:53:18,984 INFO L78 Accepts]: Start accepts. Automaton has 66237 states and 171709 transitions. Word has length 44 [2021-04-15 03:53:18,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:53:18,984 INFO L480 AbstractCegarLoop]: Abstraction has 66237 states and 171709 transitions. [2021-04-15 03:53:18,984 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) [2021-04-15 03:53:18,985 INFO L276 IsEmpty]: Start isEmpty. Operand 66237 states and 171709 transitions. [2021-04-15 03:53:19,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-04-15 03:53:19,035 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:53:19,035 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:53:19,235 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12118,153 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:53:19,236 INFO L428 AbstractCegarLoop]: === Iteration 158 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:53:19,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:53:19,236 INFO L82 PathProgramCache]: Analyzing trace with hash -2026390862, now seen corresponding path program 153 times [2021-04-15 03:53:19,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:53:19,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609723536] [2021-04-15 03:53:19,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:53:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:53:20,013 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 39 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:53:20,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609723536] [2021-04-15 03:53:20,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411704480] [2021-04-15 03:53:20,013 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 [2021-04-15 03:53:20,045 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2021-04-15 03:53:20,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:53:20,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-04-15 03:53:20,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:53:21,708 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 39 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:53:21,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:53:21,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19] total 34 [2021-04-15 03:53:21,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286527134] [2021-04-15 03:53:21,709 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-04-15 03:53:21,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:53:21,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-04-15 03:53:21,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=984, Unknown=0, NotChecked=0, Total=1190 [2021-04-15 03:53:21,710 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) [2021-04-15 03:53:25,458 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 13 [2021-04-15 03:53:32,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:53:32,395 INFO L93 Difference]: Finished difference Result 75317 states and 190900 transitions. [2021-04-15 03:53:32,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-04-15 03:53:32,398 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 [2021-04-15 03:53:32,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:53:32,588 INFO L225 Difference]: With dead ends: 75317 [2021-04-15 03:53:32,588 INFO L226 Difference]: Without dead ends: 75249 [2021-04-15 03:53:32,589 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7072 ImplicationChecksByTransitivity, 9788.5ms TimeCoverageRelationStatistics Valid=4296, Invalid=14336, Unknown=0, NotChecked=0, Total=18632 [2021-04-15 03:53:32,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75249 states. [2021-04-15 03:53:33,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75249 to 60412. [2021-04-15 03:53:34,071 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) [2021-04-15 03:53:34,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60412 states to 60412 states and 156833 transitions. [2021-04-15 03:53:34,529 INFO L78 Accepts]: Start accepts. Automaton has 60412 states and 156833 transitions. Word has length 44 [2021-04-15 03:53:34,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:53:34,529 INFO L480 AbstractCegarLoop]: Abstraction has 60412 states and 156833 transitions. [2021-04-15 03:53:34,529 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) [2021-04-15 03:53:34,529 INFO L276 IsEmpty]: Start isEmpty. Operand 60412 states and 156833 transitions. [2021-04-15 03:53:34,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-04-15 03:53:34,590 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:53:34,591 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:53:34,804 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12119,154 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:53:34,805 INFO L428 AbstractCegarLoop]: === Iteration 159 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:53:34,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:53:34,805 INFO L82 PathProgramCache]: Analyzing trace with hash 761628206, now seen corresponding path program 154 times [2021-04-15 03:53:34,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:53:34,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750768233] [2021-04-15 03:53:34,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:53:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:53:35,629 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 46 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:53:35,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750768233] [2021-04-15 03:53:35,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991727826] [2021-04-15 03:53:35,630 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 [2021-04-15 03:53:35,661 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 03:53:35,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:53:35,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-04-15 03:53:35,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:53:37,702 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 46 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:53:37,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:53:37,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 35 [2021-04-15 03:53:37,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338492480] [2021-04-15 03:53:37,702 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-04-15 03:53:37,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:53:37,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-04-15 03:53:37,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=1039, Unknown=0, NotChecked=0, Total=1260 [2021-04-15 03:53:37,703 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) [2021-04-15 03:53:48,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:53:48,743 INFO L93 Difference]: Finished difference Result 71294 states and 180046 transitions. [2021-04-15 03:53:48,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2021-04-15 03:53:48,747 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 [2021-04-15 03:53:48,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:53:48,942 INFO L225 Difference]: With dead ends: 71294 [2021-04-15 03:53:48,943 INFO L226 Difference]: Without dead ends: 71236 [2021-04-15 03:53:48,944 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7215 ImplicationChecksByTransitivity, 10881.6ms TimeCoverageRelationStatistics Valid=4422, Invalid=14760, Unknown=0, NotChecked=0, Total=19182 [2021-04-15 03:53:49,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71236 states. [2021-04-15 03:53:50,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71236 to 55869. [2021-04-15 03:53:50,254 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) [2021-04-15 03:53:50,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55869 states to 55869 states and 144931 transitions. [2021-04-15 03:53:50,450 INFO L78 Accepts]: Start accepts. Automaton has 55869 states and 144931 transitions. Word has length 44 [2021-04-15 03:53:50,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:53:50,450 INFO L480 AbstractCegarLoop]: Abstraction has 55869 states and 144931 transitions. [2021-04-15 03:53:50,450 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) [2021-04-15 03:53:50,450 INFO L276 IsEmpty]: Start isEmpty. Operand 55869 states and 144931 transitions. [2021-04-15 03:53:50,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-04-15 03:53:50,499 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:53:50,499 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:53:50,700 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12120,155 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:53:50,700 INFO L428 AbstractCegarLoop]: === Iteration 160 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:53:50,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:53:50,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1467247882, now seen corresponding path program 155 times [2021-04-15 03:53:50,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:53:50,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594813744] [2021-04-15 03:53:50,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:53:50,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:53:51,500 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 48 proven. 64 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:53:51,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594813744] [2021-04-15 03:53:51,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781858673] [2021-04-15 03:53:51,501 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 [2021-04-15 03:53:51,753 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-04-15 03:53:51,753 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:53:51,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-04-15 03:53:51,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:53:53,557 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 42 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:53:53,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:53:53,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2021-04-15 03:53:53,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046680139] [2021-04-15 03:53:53,558 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-04-15 03:53:53,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:53:53,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-04-15 03:53:53,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=1100, Unknown=0, NotChecked=0, Total=1332 [2021-04-15 03:53:53,559 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) [2021-04-15 03:54:05,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:54:05,470 INFO L93 Difference]: Finished difference Result 63141 states and 160316 transitions. [2021-04-15 03:54:05,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-04-15 03:54:05,474 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 [2021-04-15 03:54:05,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:54:05,651 INFO L225 Difference]: With dead ends: 63141 [2021-04-15 03:54:05,651 INFO L226 Difference]: Without dead ends: 63141 [2021-04-15 03:54:05,652 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5668 ImplicationChecksByTransitivity, 10914.3ms TimeCoverageRelationStatistics Valid=4294, Invalid=13528, Unknown=0, NotChecked=0, Total=17822 [2021-04-15 03:54:05,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63141 states. [2021-04-15 03:54:06,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63141 to 51453. [2021-04-15 03:54:06,850 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) [2021-04-15 03:54:07,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51453 states to 51453 states and 133372 transitions. [2021-04-15 03:54:07,010 INFO L78 Accepts]: Start accepts. Automaton has 51453 states and 133372 transitions. Word has length 44 [2021-04-15 03:54:07,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:54:07,010 INFO L480 AbstractCegarLoop]: Abstraction has 51453 states and 133372 transitions. [2021-04-15 03:54:07,010 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) [2021-04-15 03:54:07,011 INFO L276 IsEmpty]: Start isEmpty. Operand 51453 states and 133372 transitions. [2021-04-15 03:54:07,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-04-15 03:54:07,052 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:54:07,052 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:54:07,252 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12121,156 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:54:07,252 INFO L428 AbstractCegarLoop]: === Iteration 161 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:54:07,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:54:07,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1641909810, now seen corresponding path program 156 times [2021-04-15 03:54:07,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:54:07,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117347055] [2021-04-15 03:54:07,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:54:07,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:54:07,998 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 51 proven. 61 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:54:07,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117347055] [2021-04-15 03:54:07,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168883624] [2021-04-15 03:54:07,999 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 [2021-04-15 03:54:08,031 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-04-15 03:54:08,031 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:54:08,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-04-15 03:54:08,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:54:10,020 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 51 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:54:10,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:54:10,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 35 [2021-04-15 03:54:10,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401244105] [2021-04-15 03:54:10,021 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-04-15 03:54:10,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:54:10,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-04-15 03:54:10,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=1053, Unknown=0, NotChecked=0, Total=1260 [2021-04-15 03:54:10,021 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) [2021-04-15 03:54:11,309 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 10 [2021-04-15 03:54:18,160 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 14 [2021-04-15 03:54:18,359 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 15 [2021-04-15 03:54:25,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:54:25,793 INFO L93 Difference]: Finished difference Result 57683 states and 146274 transitions. [2021-04-15 03:54:25,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2021-04-15 03:54:25,796 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 [2021-04-15 03:54:25,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:54:25,946 INFO L225 Difference]: With dead ends: 57683 [2021-04-15 03:54:25,946 INFO L226 Difference]: Without dead ends: 57500 [2021-04-15 03:54:25,948 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9516 ImplicationChecksByTransitivity, 15058.0ms TimeCoverageRelationStatistics Valid=5161, Invalid=20279, Unknown=0, NotChecked=0, Total=25440 [2021-04-15 03:54:26,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57500 states. [2021-04-15 03:54:27,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57500 to 50307. [2021-04-15 03:54:27,309 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) [2021-04-15 03:54:27,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50307 states to 50307 states and 129899 transitions. [2021-04-15 03:54:27,475 INFO L78 Accepts]: Start accepts. Automaton has 50307 states and 129899 transitions. Word has length 44 [2021-04-15 03:54:27,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:54:27,475 INFO L480 AbstractCegarLoop]: Abstraction has 50307 states and 129899 transitions. [2021-04-15 03:54:27,475 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) [2021-04-15 03:54:27,475 INFO L276 IsEmpty]: Start isEmpty. Operand 50307 states and 129899 transitions. [2021-04-15 03:54:27,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-04-15 03:54:27,513 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:54:27,513 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:54:27,713 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12122,157 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 03:54:27,713 INFO L428 AbstractCegarLoop]: === Iteration 162 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:54:27,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:54:27,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1238626058, now seen corresponding path program 157 times [2021-04-15 03:54:27,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:54:27,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562646535] [2021-04-15 03:54:27,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:54:27,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:54:28,434 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 47 proven. 65 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:54:28,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562646535] [2021-04-15 03:54:28,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1616910732] [2021-04-15 03:54:28,434 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 [2021-04-15 03:54:28,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:54:28,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-04-15 03:54:28,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:54:30,389 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 42 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:54:30,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:54:30,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 35 [2021-04-15 03:54:30,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756103637] [2021-04-15 03:54:30,390 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-04-15 03:54:30,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:54:30,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-04-15 03:54:30,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=1049, Unknown=0, NotChecked=0, Total=1260 [2021-04-15 03:54:30,391 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) [2021-04-15 03:54:44,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 03:54:44,598 INFO L93 Difference]: Finished difference Result 60574 states and 152493 transitions. [2021-04-15 03:54:44,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-04-15 03:54:44,601 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 [2021-04-15 03:54:44,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 03:54:44,753 INFO L225 Difference]: With dead ends: 60574 [2021-04-15 03:54:44,753 INFO L226 Difference]: Without dead ends: 60574 [2021-04-15 03:54:44,754 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6651 ImplicationChecksByTransitivity, 12394.9ms TimeCoverageRelationStatistics Valid=4738, Invalid=15002, Unknown=0, NotChecked=0, Total=19740 [2021-04-15 03:54:44,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60574 states. [2021-04-15 03:54:45,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60574 to 46600. [2021-04-15 03:54:45,775 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) [2021-04-15 03:54:45,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46600 states to 46600 states and 120151 transitions. [2021-04-15 03:54:45,921 INFO L78 Accepts]: Start accepts. Automaton has 46600 states and 120151 transitions. Word has length 44 [2021-04-15 03:54:45,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 03:54:45,921 INFO L480 AbstractCegarLoop]: Abstraction has 46600 states and 120151 transitions. [2021-04-15 03:54:45,921 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) [2021-04-15 03:54:45,921 INFO L276 IsEmpty]: Start isEmpty. Operand 46600 states and 120151 transitions. [2021-04-15 03:54:45,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-04-15 03:54:45,964 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 03:54:45,964 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 03:54:46,174 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 158 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12123 [2021-04-15 03:54:46,175 INFO L428 AbstractCegarLoop]: === Iteration 163 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-15 03:54:46,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 03:54:46,175 INFO L82 PathProgramCache]: Analyzing trace with hash -453268686, now seen corresponding path program 158 times [2021-04-15 03:54:46,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 03:54:46,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037043256] [2021-04-15 03:54:46,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 03:54:46,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 03:54:47,027 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 43 proven. 69 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 03:54:47,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037043256] [2021-04-15 03:54:47,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738823826] [2021-04-15 03:54:47,028 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 [2021-04-15 03:54:47,064 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 03:54:47,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 03:54:47,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-04-15 03:54:47,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 03:54:49,173 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 42 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 03:54:49,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 03:54:49,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19] total 34 [2021-04-15 03:54:49,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973230503] [2021-04-15 03:54:49,173 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-04-15 03:54:49,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 03:54:49,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-04-15 03:54:49,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=997, Unknown=0, NotChecked=0, Total=1190 [2021-04-15 03:54:49,174 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) Received shutdown request... [2021-04-15 03:54:51,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-04-15 03:54:51,936 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 159 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12124 [2021-04-15 03:54:51,936 WARN L545 AbstractCegarLoop]: Verification canceled [2021-04-15 03:54:51,941 WARN L224 ceAbstractionStarter]: Timeout [2021-04-15 03:54:51,942 INFO L202 PluginConnector]: Adding new model counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.04 03:54:51 BasicIcfg [2021-04-15 03:54:51,942 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-15 03:54:51,943 INFO L168 Benchmark]: Toolchain (without parser) took 792643.68 ms. Allocated memory was 255.9 MB in the beginning and 7.2 GB in the end (delta: 7.0 GB). Free memory was 236.3 MB in the beginning and 5.7 GB in the end (delta: -5.4 GB). Peak memory consumption was 1.5 GB. Max. memory is 16.0 GB. [2021-04-15 03:54:51,943 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory is still 237.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-15 03:54:51,943 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.19 ms. Allocated memory is still 255.9 MB. Free memory was 236.3 MB in the beginning and 235.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-15 03:54:51,944 INFO L168 Benchmark]: Boogie Preprocessor took 17.75 ms. Allocated memory is still 255.9 MB. Free memory was 235.0 MB in the beginning and 233.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-15 03:54:51,944 INFO L168 Benchmark]: RCFGBuilder took 280.34 ms. Allocated memory is still 255.9 MB. Free memory was 233.9 MB in the beginning and 237.7 MB in the end (delta: -3.9 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.0 GB. [2021-04-15 03:54:51,944 INFO L168 Benchmark]: TraceAbstraction took 792317.10 ms. Allocated memory was 255.9 MB in the beginning and 7.2 GB in the end (delta: 7.0 GB). Free memory was 237.7 MB in the beginning and 5.7 GB in the end (delta: -5.4 GB). Peak memory consumption was 1.5 GB. Max. memory is 16.0 GB. [2021-04-15 03:54:51,944 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 0.12 ms. Allocated memory is still 255.9 MB. Free memory is still 237.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.19 ms. Allocated memory is still 255.9 MB. Free memory was 236.3 MB in the beginning and 235.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 17.75 ms. Allocated memory is still 255.9 MB. Free memory was 235.0 MB in the beginning and 233.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 280.34 ms. Allocated memory is still 255.9 MB. Free memory was 233.9 MB in the beginning and 237.7 MB in the end (delta: -3.9 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 792317.10 ms. Allocated memory was 255.9 MB in the beginning and 7.2 GB in the end (delta: 7.0 GB). Free memory was 237.7 MB in the beginning and 5.7 GB in the end (delta: -5.4 GB). Peak memory consumption was 1.5 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 (46600states) and FLOYD_HOARE automaton (currently 31 states, 35 states before enhancement),while ReachableStatesComputation was computing reachable states (752 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 792230.9ms, OverallIterations: 163, TraceHistogramMax: 8, EmptinessCheckTime: 2172.3ms, AutomataDifference: 342701.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 16.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 7288 SDtfs, 47261 SDslu, 70564 SDs, 0 SdLazy, 79148 SolverSat, 11228 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 50021.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14694 GetRequests, 4044 SyntacticMatches, 22 SemanticMatches, 10628 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351057 ImplicationChecksByTransitivity, 387032.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=73137occurred in iteration=154, InterpolantAutomatonStates: 8475, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 56246.9ms AutomataMinimizationTime, 162 MinimizatonAttempts, 411590 StatesRemovedByMinimization, 162 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 785.4ms SsaConstructionTime, 2562.8ms SatisfiabilityAnalysisTime, 352137.1ms InterpolantComputationTime, 10760 NumberOfCodeBlocks, 10760 NumberOfCodeBlocksAsserted, 830 NumberOfCheckSat, 10439 ConstructedInterpolants, 112 QuantifiedInterpolants, 167677 SizeOfPredicates, 564 NumberOfNonLiveVariables, 15372 ConjunctsInSsa, 2928 ConjunctsInUnsatCore, 321 InterpolantComputations, 5 PerfectInterpolantSequences, 6004/17609 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