/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-proofs/three-array-max-OH4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a865e3bea3ade1065a4c95009cfa501fe03c5538-a865e3b [2021-02-19 20:25:37,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 20:25:37,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 20:25:37,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-19 20:25:37,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 20:25:37,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 20:25:37,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 20:25:37,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 20:25:37,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 20:25:37,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 20:25:37,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 20:25:37,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 20:25:37,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 20:25:37,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 20:25:37,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 20:25:37,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 20:25:37,562 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-19 20:25:37,580 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 [2021-02-19 20:25:37,618 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 20:25:37,619 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 20:25:37,619 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-02-19 20:25:37,619 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-02-19 20:25:37,620 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 20:25:37,620 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 20:25:37,620 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 20:25:37,620 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 20:25:37,621 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 20:25:37,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 20:25:37,621 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 20:25:37,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 20:25:37,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 20:25:37,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 20:25:37,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 20:25:37,621 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 20:25:37,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 20:25:37,621 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 20:25:37,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 20:25:37,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 20:25:37,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 20:25:37,622 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-19 20:25:37,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 20:25:37,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 20:25:37,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 20:25:37,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 20:25:37,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 20:25:37,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 20:25:37,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 20:25:37,623 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-19 20:25:37,623 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 20:25:37,623 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 20:25:37,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 20:25:37,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 20:25:37,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 20:25:37,988 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-02-19 20:25:37,990 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-02-19 20:25:37,991 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/three-array-max-OH4.wvr.bpl [2021-02-19 20:25:37,991 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/three-array-max-OH4.wvr.bpl' [2021-02-19 20:25:38,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 20:25:38,029 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 20:25:38,030 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-19 20:25:38,030 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-19 20:25:38,031 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-19 20:25:38,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "three-array-max-OH4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 08:25:38" (1/1) ... [2021-02-19 20:25:38,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "three-array-max-OH4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 08:25:38" (1/1) ... [2021-02-19 20:25:38,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-19 20:25:38,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 20:25:38,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 20:25:38,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 20:25:38,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "three-array-max-OH4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 08:25:38" (1/1) ... [2021-02-19 20:25:38,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "three-array-max-OH4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 08:25:38" (1/1) ... [2021-02-19 20:25:38,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "three-array-max-OH4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 08:25:38" (1/1) ... [2021-02-19 20:25:38,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "three-array-max-OH4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 08:25:38" (1/1) ... [2021-02-19 20:25:38,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "three-array-max-OH4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 08:25:38" (1/1) ... [2021-02-19 20:25:38,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "three-array-max-OH4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 08:25:38" (1/1) ... [2021-02-19 20:25:38,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "three-array-max-OH4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 08:25:38" (1/1) ... [2021-02-19 20:25:38,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 20:25:38,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 20:25:38,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 20:25:38,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 20:25:38,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "three-array-max-OH4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 08:25:38" (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 [2021-02-19 20:25:38,153 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-02-19 20:25:38,154 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-02-19 20:25:38,154 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-02-19 20:25:38,154 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-02-19 20:25:38,154 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-02-19 20:25:38,154 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-02-19 20:25:38,154 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-02-19 20:25:38,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 20:25:38,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 20:25:38,155 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-02-19 20:25:38,155 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-02-19 20:25:38,155 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-02-19 20:25:38,157 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-19 20:25:38,403 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 20:25:38,403 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-19 20:25:38,405 INFO L202 PluginConnector]: Adding new model three-array-max-OH4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 08:25:38 BoogieIcfgContainer [2021-02-19 20:25:38,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 20:25:38,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 20:25:38,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 20:25:38,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 20:25:38,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-max-OH4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 08:25:38" (1/2) ... [2021-02-19 20:25:38,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c4ad0c1 and model type three-array-max-OH4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 08:25:38, skipping insertion in model container [2021-02-19 20:25:38,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-max-OH4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 08:25:38" (2/2) ... [2021-02-19 20:25:38,409 INFO L111 eAbstractionObserver]: Analyzing ICFG three-array-max-OH4.wvr.bpl [2021-02-19 20:25:38,413 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-19 20:25:38,413 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 20:25:38,415 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 20:25:38,416 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-19 20:25:38,453 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-02-19 20:25:38,465 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-02-19 20:25:38,476 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 20:25:38,476 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 20:25:38,476 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 20:25:38,476 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 20:25:38,477 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 20:25:38,477 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 20:25:38,477 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 20:25:38,477 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 20:25:38,482 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 32 transitions, 88 flow [2021-02-19 20:25:38,506 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 136 states, 134 states have (on average 2.970149253731343) internal successors, (398), 135 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:38,509 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 134 states have (on average 2.970149253731343) internal successors, (398), 135 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:38,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-02-19 20:25:38,519 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:25:38,520 INFO L506 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:25:38,520 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:25:38,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:25:38,538 INFO L82 PathProgramCache]: Analyzing trace with hash -88517269, now seen corresponding path program 1 times [2021-02-19 20:25:38,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:25:38,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139505042] [2021-02-19 20:25:38,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:25:38,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:25:38,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:25:38,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139505042] [2021-02-19 20:25:38,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 20:25:38,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-19 20:25:38,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209307268] [2021-02-19 20:25:38,736 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-19 20:25:38,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:25:38,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-19 20:25:38,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-19 20:25:38,747 INFO L87 Difference]: Start difference. First operand has 136 states, 134 states have (on average 2.970149253731343) internal successors, (398), 135 states have internal predecessors, (398), 0 states have call successors, (0), 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 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:38,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:25:38,829 INFO L93 Difference]: Finished difference Result 474 states and 1450 transitions. [2021-02-19 20:25:38,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:25:38,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-02-19 20:25:38,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:25:38,847 INFO L225 Difference]: With dead ends: 474 [2021-02-19 20:25:38,847 INFO L226 Difference]: Without dead ends: 388 [2021-02-19 20:25:38,848 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-02-19 20:25:38,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2021-02-19 20:25:38,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 176. [2021-02-19 20:25:38,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 175 states have (on average 3.0914285714285716) internal successors, (541), 175 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:38,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 541 transitions. [2021-02-19 20:25:38,911 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 541 transitions. Word has length 19 [2021-02-19 20:25:38,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:25:38,912 INFO L480 AbstractCegarLoop]: Abstraction has 176 states and 541 transitions. [2021-02-19 20:25:38,912 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:38,912 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 541 transitions. [2021-02-19 20:25:38,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-02-19 20:25:38,917 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:25:38,917 INFO L506 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:25:38,917 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 20:25:38,917 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:25:38,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:25:38,920 INFO L82 PathProgramCache]: Analyzing trace with hash 640146471, now seen corresponding path program 1 times [2021-02-19 20:25:38,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:25:38,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163276948] [2021-02-19 20:25:38,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:25:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:25:38,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:25:38,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163276948] [2021-02-19 20:25:38,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 20:25:38,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 20:25:38,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353734143] [2021-02-19 20:25:38,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 20:25:38,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:25:38,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 20:25:38,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 20:25:38,979 INFO L87 Difference]: Start difference. First operand 176 states and 541 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:39,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:25:39,035 INFO L93 Difference]: Finished difference Result 346 states and 1050 transitions. [2021-02-19 20:25:39,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:25:39,035 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have 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 [2021-02-19 20:25:39,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:25:39,038 INFO L225 Difference]: With dead ends: 346 [2021-02-19 20:25:39,038 INFO L226 Difference]: Without dead ends: 323 [2021-02-19 20:25:39,039 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-19 20:25:39,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2021-02-19 20:25:39,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 253. [2021-02-19 20:25:39,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 252 states have (on average 3.142857142857143) internal successors, (792), 252 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:39,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 792 transitions. [2021-02-19 20:25:39,063 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 792 transitions. Word has length 22 [2021-02-19 20:25:39,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:25:39,063 INFO L480 AbstractCegarLoop]: Abstraction has 253 states and 792 transitions. [2021-02-19 20:25:39,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:39,064 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 792 transitions. [2021-02-19 20:25:39,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-02-19 20:25:39,066 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:25:39,066 INFO L506 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:25:39,066 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 20:25:39,066 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:25:39,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:25:39,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1179493335, now seen corresponding path program 2 times [2021-02-19 20:25:39,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:25:39,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916599185] [2021-02-19 20:25:39,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:25:39,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:25:39,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:25:39,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916599185] [2021-02-19 20:25:39,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 20:25:39,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 20:25:39,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698284124] [2021-02-19 20:25:39,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 20:25:39,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:25:39,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 20:25:39,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 20:25:39,112 INFO L87 Difference]: Start difference. First operand 253 states and 792 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:39,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:25:39,172 INFO L93 Difference]: Finished difference Result 495 states and 1542 transitions. [2021-02-19 20:25:39,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:25:39,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have 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 [2021-02-19 20:25:39,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:25:39,176 INFO L225 Difference]: With dead ends: 495 [2021-02-19 20:25:39,176 INFO L226 Difference]: Without dead ends: 472 [2021-02-19 20:25:39,176 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-19 20:25:39,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2021-02-19 20:25:39,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 304. [2021-02-19 20:25:39,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 303 states have (on average 3.283828382838284) internal successors, (995), 303 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:39,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 995 transitions. [2021-02-19 20:25:39,193 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 995 transitions. Word has length 22 [2021-02-19 20:25:39,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:25:39,193 INFO L480 AbstractCegarLoop]: Abstraction has 304 states and 995 transitions. [2021-02-19 20:25:39,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:39,197 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 995 transitions. [2021-02-19 20:25:39,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-02-19 20:25:39,198 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:25:39,198 INFO L506 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:25:39,198 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-19 20:25:39,198 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:25:39,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:25:39,199 INFO L82 PathProgramCache]: Analyzing trace with hash 265542313, now seen corresponding path program 3 times [2021-02-19 20:25:39,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:25:39,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546881431] [2021-02-19 20:25:39,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:25:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:25:39,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:25:39,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546881431] [2021-02-19 20:25:39,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 20:25:39,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 20:25:39,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30138103] [2021-02-19 20:25:39,235 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 20:25:39,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:25:39,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 20:25:39,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 20:25:39,236 INFO L87 Difference]: Start difference. First operand 304 states and 995 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:39,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:25:39,316 INFO L93 Difference]: Finished difference Result 348 states and 1103 transitions. [2021-02-19 20:25:39,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:25:39,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have 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 [2021-02-19 20:25:39,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:25:39,320 INFO L225 Difference]: With dead ends: 348 [2021-02-19 20:25:39,320 INFO L226 Difference]: Without dead ends: 348 [2021-02-19 20:25:39,320 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-19 20:25:39,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2021-02-19 20:25:39,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 296. [2021-02-19 20:25:39,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 295 states have (on average 3.169491525423729) internal successors, (935), 295 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:39,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 935 transitions. [2021-02-19 20:25:39,330 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 935 transitions. Word has length 22 [2021-02-19 20:25:39,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:25:39,331 INFO L480 AbstractCegarLoop]: Abstraction has 296 states and 935 transitions. [2021-02-19 20:25:39,331 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:39,331 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 935 transitions. [2021-02-19 20:25:39,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-02-19 20:25:39,333 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:25:39,333 INFO L506 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:25:39,333 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-19 20:25:39,334 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:25:39,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:25:39,334 INFO L82 PathProgramCache]: Analyzing trace with hash -12859855, now seen corresponding path program 1 times [2021-02-19 20:25:39,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:25:39,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408982801] [2021-02-19 20:25:39,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:25:39,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:25:39,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 20:25:39,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408982801] [2021-02-19 20:25:39,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 20:25:39,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 20:25:39,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920160394] [2021-02-19 20:25:39,395 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 20:25:39,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:25:39,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 20:25:39,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 20:25:39,396 INFO L87 Difference]: Start difference. First operand 296 states and 935 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:39,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:25:39,447 INFO L93 Difference]: Finished difference Result 309 states and 971 transitions. [2021-02-19 20:25:39,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:25:39,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have 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 [2021-02-19 20:25:39,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:25:39,450 INFO L225 Difference]: With dead ends: 309 [2021-02-19 20:25:39,450 INFO L226 Difference]: Without dead ends: 309 [2021-02-19 20:25:39,450 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-19 20:25:39,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-02-19 20:25:39,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 256. [2021-02-19 20:25:39,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 255 states have (on average 3.1372549019607843) internal successors, (800), 255 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:39,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 800 transitions. [2021-02-19 20:25:39,458 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 800 transitions. Word has length 24 [2021-02-19 20:25:39,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:25:39,459 INFO L480 AbstractCegarLoop]: Abstraction has 256 states and 800 transitions. [2021-02-19 20:25:39,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:39,459 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 800 transitions. [2021-02-19 20:25:39,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-19 20:25:39,460 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:25:39,460 INFO L506 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:25:39,460 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-19 20:25:39,460 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:25:39,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:25:39,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1958304005, now seen corresponding path program 1 times [2021-02-19 20:25:39,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:25:39,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475410224] [2021-02-19 20:25:39,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:25:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:25:39,842 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:25:39,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475410224] [2021-02-19 20:25:39,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783561730] [2021-02-19 20:25:39,843 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 [2021-02-19 20:25:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:25:39,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 17 conjunts are in the unsatisfiable core [2021-02-19 20:25:39,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:25:40,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 24 [2021-02-19 20:25:40,372 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:25:40,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 24 [2021-02-19 20:25:40,396 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:25:40,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 24 [2021-02-19 20:25:40,411 INFO L550 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:25:40,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 24 [2021-02-19 20:25:40,428 INFO L550 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:25:40,490 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:25:40,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-02-19 20:25:40,515 INFO L550 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:25:40,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2021-02-19 20:25:40,535 INFO L550 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:25:40,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2021-02-19 20:25:40,553 INFO L550 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:25:40,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-02-19 20:25:40,568 INFO L550 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:25:40,606 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:25:40,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-02-19 20:25:40,617 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:40,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-02-19 20:25:40,628 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:40,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-02-19 20:25:40,637 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:40,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-02-19 20:25:40,651 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:40,696 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:25:40,704 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-02-19 20:25:40,705 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 3 variables, input treesize:197, output treesize:58 [2021-02-19 20:25:40,814 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 [2021-02-19 20:25:40,815 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:40,822 INFO L628 ElimStorePlain]: treesize reduction 27, result has 15.6 percent of original size [2021-02-19 20:25:40,825 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1 vanished before elimination [2021-02-19 20:25:40,826 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:25:40,826 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:40, output treesize:5 [2021-02-19 20:25:40,836 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:25:40,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:25:40,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-02-19 20:25:40,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449544531] [2021-02-19 20:25:40,837 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-02-19 20:25:40,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:25:40,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-02-19 20:25:40,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2021-02-19 20:25:40,839 INFO L87 Difference]: Start difference. First operand 256 states and 800 transitions. Second operand has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 14 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) [2021-02-19 20:25:41,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:25:41,090 INFO L93 Difference]: Finished difference Result 525 states and 1652 transitions. [2021-02-19 20:25:41,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:25:41,091 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 14 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 26 [2021-02-19 20:25:41,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:25:41,094 INFO L225 Difference]: With dead ends: 525 [2021-02-19 20:25:41,094 INFO L226 Difference]: Without dead ends: 482 [2021-02-19 20:25:41,094 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2021-02-19 20:25:41,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2021-02-19 20:25:41,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 373. [2021-02-19 20:25:41,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 372 states have (on average 3.161290322580645) internal successors, (1176), 372 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:41,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 1176 transitions. [2021-02-19 20:25:41,110 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 1176 transitions. Word has length 26 [2021-02-19 20:25:41,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:25:41,110 INFO L480 AbstractCegarLoop]: Abstraction has 373 states and 1176 transitions. [2021-02-19 20:25:41,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 14 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) [2021-02-19 20:25:41,111 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 1176 transitions. [2021-02-19 20:25:41,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-19 20:25:41,112 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:25:41,112 INFO L506 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:25:41,336 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-02-19 20:25:41,336 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:25:41,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:25:41,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1382362165, now seen corresponding path program 2 times [2021-02-19 20:25:41,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:25:41,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793076439] [2021-02-19 20:25:41,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:25:41,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:25:41,366 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 20:25:41,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793076439] [2021-02-19 20:25:41,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 20:25:41,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-02-19 20:25:41,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823155990] [2021-02-19 20:25:41,367 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 20:25:41,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:25:41,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 20:25:41,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 20:25:41,367 INFO L87 Difference]: Start difference. First operand 373 states and 1176 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 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) [2021-02-19 20:25:41,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:25:41,385 INFO L93 Difference]: Finished difference Result 524 states and 1595 transitions. [2021-02-19 20:25:41,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 20:25:41,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 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 26 [2021-02-19 20:25:41,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:25:41,389 INFO L225 Difference]: With dead ends: 524 [2021-02-19 20:25:41,389 INFO L226 Difference]: Without dead ends: 476 [2021-02-19 20:25:41,389 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 20:25:41,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2021-02-19 20:25:41,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 403. [2021-02-19 20:25:41,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 402 states have (on average 3.0970149253731343) internal successors, (1245), 402 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:41,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 1245 transitions. [2021-02-19 20:25:41,408 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 1245 transitions. Word has length 26 [2021-02-19 20:25:41,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:25:41,408 INFO L480 AbstractCegarLoop]: Abstraction has 403 states and 1245 transitions. [2021-02-19 20:25:41,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 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) [2021-02-19 20:25:41,408 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 1245 transitions. [2021-02-19 20:25:41,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-19 20:25:41,409 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:25:41,409 INFO L506 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:25:41,410 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-02-19 20:25:41,410 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:25:41,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:25:41,410 INFO L82 PathProgramCache]: Analyzing trace with hash -616001465, now seen corresponding path program 3 times [2021-02-19 20:25:41,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:25:41,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930313127] [2021-02-19 20:25:41,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:25:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:25:41,647 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:25:41,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930313127] [2021-02-19 20:25:41,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081558945] [2021-02-19 20:25:41,648 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 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 [2021-02-19 20:25:41,676 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-02-19 20:25:41,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:25:41,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 14 conjunts are in the unsatisfiable core [2021-02-19 20:25:41,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:25:41,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-02-19 20:25:41,764 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:41,772 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:25:41,773 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:25:41,773 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:37 [2021-02-19 20:25:41,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 23 [2021-02-19 20:25:41,884 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:41,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2021-02-19 20:25:41,890 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:41,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2021-02-19 20:25:41,895 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:41,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 23 [2021-02-19 20:25:41,899 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:41,932 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:25:41,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 23 [2021-02-19 20:25:41,937 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:41,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2021-02-19 20:25:41,943 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:41,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-02-19 20:25:41,948 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:41,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2021-02-19 20:25:41,951 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:41,971 INFO L628 ElimStorePlain]: treesize reduction 40, result has 28.6 percent of original size [2021-02-19 20:25:41,972 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:25:41,972 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 2 variables, input treesize:185, output treesize:16 [2021-02-19 20:25:42,025 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 [2021-02-19 20:25:42,028 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:42,029 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-02-19 20:25:42,030 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:42,031 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:25:42,032 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:25:42,032 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:34, output treesize:5 [2021-02-19 20:25:42,039 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:25:42,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:25:42,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 16 [2021-02-19 20:25:42,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455002883] [2021-02-19 20:25:42,040 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-02-19 20:25:42,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:25:42,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-02-19 20:25:42,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-02-19 20:25:42,040 INFO L87 Difference]: Start difference. First operand 403 states and 1245 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 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) [2021-02-19 20:25:42,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:25:42,427 INFO L93 Difference]: Finished difference Result 926 states and 2795 transitions. [2021-02-19 20:25:42,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 20:25:42,428 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 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 26 [2021-02-19 20:25:42,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:25:42,431 INFO L225 Difference]: With dead ends: 926 [2021-02-19 20:25:42,431 INFO L226 Difference]: Without dead ends: 808 [2021-02-19 20:25:42,431 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2021-02-19 20:25:42,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2021-02-19 20:25:42,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 427. [2021-02-19 20:25:42,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 426 states have (on average 3.096244131455399) internal successors, (1319), 426 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:42,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 1319 transitions. [2021-02-19 20:25:42,442 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 1319 transitions. Word has length 26 [2021-02-19 20:25:42,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:25:42,442 INFO L480 AbstractCegarLoop]: Abstraction has 427 states and 1319 transitions. [2021-02-19 20:25:42,442 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 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) [2021-02-19 20:25:42,442 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 1319 transitions. [2021-02-19 20:25:42,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-19 20:25:42,443 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:25:42,443 INFO L506 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:25:42,658 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:25:42,658 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:25:42,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:25:42,659 INFO L82 PathProgramCache]: Analyzing trace with hash -213312237, now seen corresponding path program 4 times [2021-02-19 20:25:42,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:25:42,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983688928] [2021-02-19 20:25:42,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:25:42,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:25:42,820 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:25:42,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983688928] [2021-02-19 20:25:42,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441332328] [2021-02-19 20:25:42,821 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 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 [2021-02-19 20:25:42,845 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 20:25:42,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:25:42,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 14 conjunts are in the unsatisfiable core [2021-02-19 20:25:42,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:25:42,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-02-19 20:25:42,919 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:42,928 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:25:42,928 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:25:42,929 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:37 [2021-02-19 20:25:42,975 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 23 treesize of output 19 [2021-02-19 20:25:42,976 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:42,979 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 17 treesize of output 13 [2021-02-19 20:25:42,980 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:43,004 INFO L628 ElimStorePlain]: treesize reduction 15, result has 75.8 percent of original size [2021-02-19 20:25:43,005 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-02-19 20:25:43,005 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:76, output treesize:47 [2021-02-19 20:25:43,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2021-02-19 20:25:43,175 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:43,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2021-02-19 20:25:43,183 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:43,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2021-02-19 20:25:43,189 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:43,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2021-02-19 20:25:43,198 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:43,304 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2021-02-19 20:25:43,305 INFO L628 ElimStorePlain]: treesize reduction 38, result has 81.5 percent of original size [2021-02-19 20:25:43,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-02-19 20:25:43,316 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:43,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2021-02-19 20:25:43,321 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:43,339 INFO L628 ElimStorePlain]: treesize reduction 134, result has 3.6 percent of original size [2021-02-19 20:25:43,339 INFO L518 ElimStorePlain]: Eliminatee v_prenex_2 vanished before elimination [2021-02-19 20:25:43,339 INFO L518 ElimStorePlain]: Eliminatee v_prenex_3 vanished before elimination [2021-02-19 20:25:43,339 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:25:43,339 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:257, output treesize:5 [2021-02-19 20:25:43,359 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:25:43,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:25:43,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-02-19 20:25:43,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994532037] [2021-02-19 20:25:43,360 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-02-19 20:25:43,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:25:43,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-02-19 20:25:43,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2021-02-19 20:25:43,361 INFO L87 Difference]: Start difference. First operand 427 states and 1319 transitions. Second operand has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 14 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:43,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:25:43,534 INFO L93 Difference]: Finished difference Result 693 states and 2174 transitions. [2021-02-19 20:25:43,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 20:25:43,534 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 14 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have 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 [2021-02-19 20:25:43,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:25:43,538 INFO L225 Difference]: With dead ends: 693 [2021-02-19 20:25:43,538 INFO L226 Difference]: Without dead ends: 604 [2021-02-19 20:25:43,538 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2021-02-19 20:25:43,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2021-02-19 20:25:43,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 431. [2021-02-19 20:25:43,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 430 states have (on average 3.109302325581395) internal successors, (1337), 430 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:43,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 1337 transitions. [2021-02-19 20:25:43,547 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 1337 transitions. Word has length 26 [2021-02-19 20:25:43,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:25:43,548 INFO L480 AbstractCegarLoop]: Abstraction has 431 states and 1337 transitions. [2021-02-19 20:25:43,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 14 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:43,548 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 1337 transitions. [2021-02-19 20:25:43,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-02-19 20:25:43,549 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:25:43,549 INFO L506 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:25:43,762 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-02-19 20:25:43,762 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:25:43,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:25:43,762 INFO L82 PathProgramCache]: Analyzing trace with hash -2139338845, now seen corresponding path program 5 times [2021-02-19 20:25:43,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:25:43,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037634169] [2021-02-19 20:25:43,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:25:43,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:25:43,805 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 20:25:43,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037634169] [2021-02-19 20:25:43,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130345190] [2021-02-19 20:25:43,806 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-02-19 20:25:43,843 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-02-19 20:25:43,844 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:25:43,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-02-19 20:25:43,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:25:43,878 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 20:25:43,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:25:43,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-02-19 20:25:43,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2852751] [2021-02-19 20:25:43,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 20:25:43,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:25:43,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 20:25:43,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-19 20:25:43,879 INFO L87 Difference]: Start difference. First operand 431 states and 1337 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 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) [2021-02-19 20:25:43,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:25:43,945 INFO L93 Difference]: Finished difference Result 1077 states and 3313 transitions. [2021-02-19 20:25:43,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:25:43,945 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 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 28 [2021-02-19 20:25:43,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:25:43,950 INFO L225 Difference]: With dead ends: 1077 [2021-02-19 20:25:43,951 INFO L226 Difference]: Without dead ends: 1071 [2021-02-19 20:25:43,951 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-02-19 20:25:43,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2021-02-19 20:25:43,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 723. [2021-02-19 20:25:43,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 722 states have (on average 3.3005540166204987) internal successors, (2383), 722 states have internal predecessors, (2383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:43,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 2383 transitions. [2021-02-19 20:25:43,971 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 2383 transitions. Word has length 28 [2021-02-19 20:25:43,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:25:43,971 INFO L480 AbstractCegarLoop]: Abstraction has 723 states and 2383 transitions. [2021-02-19 20:25:43,971 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 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) [2021-02-19 20:25:43,971 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 2383 transitions. [2021-02-19 20:25:43,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-02-19 20:25:43,975 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:25:43,975 INFO L506 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:25:44,190 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:25:44,191 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:25:44,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:25:44,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1102073401, now seen corresponding path program 6 times [2021-02-19 20:25:44,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:25:44,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029428701] [2021-02-19 20:25:44,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:25:44,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:25:44,216 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 20:25:44,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029428701] [2021-02-19 20:25:44,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717124630] [2021-02-19 20:25:44,216 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 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 [2021-02-19 20:25:44,255 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-02-19 20:25:44,255 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:25:44,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2021-02-19 20:25:44,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:25:44,320 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:25:44,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:25:44,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2021-02-19 20:25:44,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081540697] [2021-02-19 20:25:44,322 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-19 20:25:44,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:25:44,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-19 20:25:44,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-02-19 20:25:44,323 INFO L87 Difference]: Start difference. First operand 723 states and 2383 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 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) [2021-02-19 20:25:44,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:25:44,791 INFO L93 Difference]: Finished difference Result 3105 states and 9211 transitions. [2021-02-19 20:25:44,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-02-19 20:25:44,791 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 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 28 [2021-02-19 20:25:44,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:25:44,803 INFO L225 Difference]: With dead ends: 3105 [2021-02-19 20:25:44,803 INFO L226 Difference]: Without dead ends: 2785 [2021-02-19 20:25:44,804 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=384, Invalid=1098, Unknown=0, NotChecked=0, Total=1482 [2021-02-19 20:25:44,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2785 states. [2021-02-19 20:25:44,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2785 to 704. [2021-02-19 20:25:44,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 703 states have (on average 3.3357041251778092) internal successors, (2345), 703 states have internal predecessors, (2345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:44,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 2345 transitions. [2021-02-19 20:25:44,836 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 2345 transitions. Word has length 28 [2021-02-19 20:25:44,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:25:44,836 INFO L480 AbstractCegarLoop]: Abstraction has 704 states and 2345 transitions. [2021-02-19 20:25:44,836 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 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) [2021-02-19 20:25:44,836 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 2345 transitions. [2021-02-19 20:25:44,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-02-19 20:25:44,838 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:25:44,838 INFO L506 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:25:45,053 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2021-02-19 20:25:45,054 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:25:45,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:25:45,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1842018893, now seen corresponding path program 7 times [2021-02-19 20:25:45,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:25:45,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637465889] [2021-02-19 20:25:45,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:25:45,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:25:45,081 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 20:25:45,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637465889] [2021-02-19 20:25:45,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820275960] [2021-02-19 20:25:45,081 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 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 [2021-02-19 20:25:45,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:25:45,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-02-19 20:25:45,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:25:45,141 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 20:25:45,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:25:45,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-02-19 20:25:45,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639408406] [2021-02-19 20:25:45,142 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 20:25:45,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:25:45,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 20:25:45,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-19 20:25:45,142 INFO L87 Difference]: Start difference. First operand 704 states and 2345 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 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) [2021-02-19 20:25:45,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:25:45,227 INFO L93 Difference]: Finished difference Result 1879 states and 6186 transitions. [2021-02-19 20:25:45,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:25:45,228 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 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 29 [2021-02-19 20:25:45,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:25:45,236 INFO L225 Difference]: With dead ends: 1879 [2021-02-19 20:25:45,236 INFO L226 Difference]: Without dead ends: 1673 [2021-02-19 20:25:45,236 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-02-19 20:25:45,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1673 states. [2021-02-19 20:25:45,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1673 to 1433. [2021-02-19 20:25:45,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1433 states, 1432 states have (on average 3.4120111731843576) internal successors, (4886), 1432 states have internal predecessors, (4886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:45,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 4886 transitions. [2021-02-19 20:25:45,278 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 4886 transitions. Word has length 29 [2021-02-19 20:25:45,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:25:45,278 INFO L480 AbstractCegarLoop]: Abstraction has 1433 states and 4886 transitions. [2021-02-19 20:25:45,278 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 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) [2021-02-19 20:25:45,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 4886 transitions. [2021-02-19 20:25:45,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-02-19 20:25:45,283 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:25:45,283 INFO L506 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:25:45,494 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:25:45,494 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:25:45,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:25:45,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1481860545, now seen corresponding path program 8 times [2021-02-19 20:25:45,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:25:45,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537300252] [2021-02-19 20:25:45,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:25:45,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:25:45,526 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:25:45,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537300252] [2021-02-19 20:25:45,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036186303] [2021-02-19 20:25:45,527 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 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 [2021-02-19 20:25:45,547 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 20:25:45,548 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:25:45,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-02-19 20:25:45,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:25:45,604 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 20:25:45,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:25:45,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-02-19 20:25:45,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717601645] [2021-02-19 20:25:45,605 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-19 20:25:45,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:25:45,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-19 20:25:45,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-02-19 20:25:45,606 INFO L87 Difference]: Start difference. First operand 1433 states and 4886 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 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) [2021-02-19 20:25:46,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:25:46,140 INFO L93 Difference]: Finished difference Result 3885 states and 12614 transitions. [2021-02-19 20:25:46,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-02-19 20:25:46,140 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 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 29 [2021-02-19 20:25:46,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:25:46,156 INFO L225 Difference]: With dead ends: 3885 [2021-02-19 20:25:46,156 INFO L226 Difference]: Without dead ends: 3731 [2021-02-19 20:25:46,157 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=342, Invalid=1064, Unknown=0, NotChecked=0, Total=1406 [2021-02-19 20:25:46,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3731 states. [2021-02-19 20:25:46,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3731 to 2319. [2021-02-19 20:25:46,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2319 states, 2318 states have (on average 3.567299396031061) internal successors, (8269), 2318 states have internal predecessors, (8269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:46,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2319 states to 2319 states and 8269 transitions. [2021-02-19 20:25:46,236 INFO L78 Accepts]: Start accepts. Automaton has 2319 states and 8269 transitions. Word has length 29 [2021-02-19 20:25:46,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:25:46,236 INFO L480 AbstractCegarLoop]: Abstraction has 2319 states and 8269 transitions. [2021-02-19 20:25:46,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 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) [2021-02-19 20:25:46,236 INFO L276 IsEmpty]: Start isEmpty. Operand 2319 states and 8269 transitions. [2021-02-19 20:25:46,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-02-19 20:25:46,241 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:25:46,241 INFO L506 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:25:46,454 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2021-02-19 20:25:46,454 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:25:46,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:25:46,455 INFO L82 PathProgramCache]: Analyzing trace with hash 265568901, now seen corresponding path program 9 times [2021-02-19 20:25:46,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:25:46,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342769684] [2021-02-19 20:25:46,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:25:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:25:46,496 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 20:25:46,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342769684] [2021-02-19 20:25:46,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289393083] [2021-02-19 20:25:46,496 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 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 [2021-02-19 20:25:46,521 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-02-19 20:25:46,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:25:46,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-02-19 20:25:46,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:25:46,564 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 20:25:46,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:25:46,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-02-19 20:25:46,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081901968] [2021-02-19 20:25:46,564 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-19 20:25:46,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:25:46,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-19 20:25:46,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-19 20:25:46,566 INFO L87 Difference]: Start difference. First operand 2319 states and 8269 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 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) [2021-02-19 20:25:46,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:25:46,632 INFO L93 Difference]: Finished difference Result 3632 states and 12765 transitions. [2021-02-19 20:25:46,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:25:46,633 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 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 29 [2021-02-19 20:25:46,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:25:46,648 INFO L225 Difference]: With dead ends: 3632 [2021-02-19 20:25:46,648 INFO L226 Difference]: Without dead ends: 3577 [2021-02-19 20:25:46,648 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-02-19 20:25:46,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3577 states. [2021-02-19 20:25:46,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3577 to 3218. [2021-02-19 20:25:46,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3218 states, 3217 states have (on average 3.6061548026111283) internal successors, (11601), 3217 states have internal predecessors, (11601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:46,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3218 states to 3218 states and 11601 transitions. [2021-02-19 20:25:46,727 INFO L78 Accepts]: Start accepts. Automaton has 3218 states and 11601 transitions. Word has length 29 [2021-02-19 20:25:46,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:25:46,727 INFO L480 AbstractCegarLoop]: Abstraction has 3218 states and 11601 transitions. [2021-02-19 20:25:46,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 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) [2021-02-19 20:25:46,727 INFO L276 IsEmpty]: Start isEmpty. Operand 3218 states and 11601 transitions. [2021-02-19 20:25:46,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-02-19 20:25:46,737 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:25:46,737 INFO L506 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:25:46,950 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-02-19 20:25:46,950 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:25:46,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:25:46,950 INFO L82 PathProgramCache]: Analyzing trace with hash -674554215, now seen corresponding path program 10 times [2021-02-19 20:25:46,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:25:46,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222330201] [2021-02-19 20:25:46,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:25:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:25:46,986 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 20:25:46,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222330201] [2021-02-19 20:25:46,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325416370] [2021-02-19 20:25:46,986 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-02-19 20:25:47,023 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 20:25:47,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:25:47,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-02-19 20:25:47,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:25:47,091 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 20:25:47,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:25:47,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-02-19 20:25:47,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233627489] [2021-02-19 20:25:47,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-19 20:25:47,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:25:47,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-19 20:25:47,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-19 20:25:47,093 INFO L87 Difference]: Start difference. First operand 3218 states and 11601 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 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) [2021-02-19 20:25:47,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:25:47,152 INFO L93 Difference]: Finished difference Result 3810 states and 13405 transitions. [2021-02-19 20:25:47,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:25:47,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 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 29 [2021-02-19 20:25:47,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:25:47,169 INFO L225 Difference]: With dead ends: 3810 [2021-02-19 20:25:47,169 INFO L226 Difference]: Without dead ends: 3810 [2021-02-19 20:25:47,171 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-02-19 20:25:47,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3810 states. [2021-02-19 20:25:47,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3810 to 3283. [2021-02-19 20:25:47,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3283 states, 3282 states have (on average 3.613345521023766) internal successors, (11859), 3282 states have internal predecessors, (11859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:47,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3283 states to 3283 states and 11859 transitions. [2021-02-19 20:25:47,235 INFO L78 Accepts]: Start accepts. Automaton has 3283 states and 11859 transitions. Word has length 29 [2021-02-19 20:25:47,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:25:47,236 INFO L480 AbstractCegarLoop]: Abstraction has 3283 states and 11859 transitions. [2021-02-19 20:25:47,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 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) [2021-02-19 20:25:47,236 INFO L276 IsEmpty]: Start isEmpty. Operand 3283 states and 11859 transitions. [2021-02-19 20:25:47,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-02-19 20:25:47,243 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:25:47,243 INFO L506 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:25:47,462 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:25:47,462 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:25:47,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:25:47,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1480793499, now seen corresponding path program 11 times [2021-02-19 20:25:47,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:25:47,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481927626] [2021-02-19 20:25:47,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:25:47,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:25:47,499 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:25:47,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481927626] [2021-02-19 20:25:47,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223771598] [2021-02-19 20:25:47,499 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 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 [2021-02-19 20:25:47,538 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-02-19 20:25:47,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:25:47,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-02-19 20:25:47,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:25:47,593 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:25:47,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:25:47,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-02-19 20:25:47,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012935280] [2021-02-19 20:25:47,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 20:25:47,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:25:47,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 20:25:47,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-19 20:25:47,595 INFO L87 Difference]: Start difference. First operand 3283 states and 11859 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 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) [2021-02-19 20:25:47,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:25:47,668 INFO L93 Difference]: Finished difference Result 3694 states and 13063 transitions. [2021-02-19 20:25:47,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:25:47,668 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 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 29 [2021-02-19 20:25:47,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:25:47,678 INFO L225 Difference]: With dead ends: 3694 [2021-02-19 20:25:47,678 INFO L226 Difference]: Without dead ends: 3694 [2021-02-19 20:25:47,678 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-02-19 20:25:47,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3694 states. [2021-02-19 20:25:47,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3694 to 3265. [2021-02-19 20:25:47,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3265 states, 3264 states have (on average 3.588235294117647) internal successors, (11712), 3264 states have internal predecessors, (11712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:47,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3265 states to 3265 states and 11712 transitions. [2021-02-19 20:25:47,758 INFO L78 Accepts]: Start accepts. Automaton has 3265 states and 11712 transitions. Word has length 29 [2021-02-19 20:25:47,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:25:47,758 INFO L480 AbstractCegarLoop]: Abstraction has 3265 states and 11712 transitions. [2021-02-19 20:25:47,759 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 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) [2021-02-19 20:25:47,759 INFO L276 IsEmpty]: Start isEmpty. Operand 3265 states and 11712 transitions. [2021-02-19 20:25:47,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-02-19 20:25:47,765 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:25:47,765 INFO L506 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:25:47,978 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:25:47,978 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:25:47,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:25:47,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1019084983, now seen corresponding path program 12 times [2021-02-19 20:25:47,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:25:47,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568813982] [2021-02-19 20:25:47,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:25:47,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:25:48,005 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 20:25:48,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568813982] [2021-02-19 20:25:48,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198138750] [2021-02-19 20:25:48,006 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 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 [2021-02-19 20:25:48,030 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-02-19 20:25:48,030 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:25:48,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2021-02-19 20:25:48,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:25:48,069 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 20:25:48,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:25:48,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-02-19 20:25:48,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875985812] [2021-02-19 20:25:48,069 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 20:25:48,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:25:48,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 20:25:48,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-19 20:25:48,070 INFO L87 Difference]: Start difference. First operand 3265 states and 11712 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 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) [2021-02-19 20:25:48,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:25:48,149 INFO L93 Difference]: Finished difference Result 6483 states and 22245 transitions. [2021-02-19 20:25:48,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:25:48,149 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 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 31 [2021-02-19 20:25:48,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:25:48,166 INFO L225 Difference]: With dead ends: 6483 [2021-02-19 20:25:48,166 INFO L226 Difference]: Without dead ends: 6483 [2021-02-19 20:25:48,166 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-02-19 20:25:48,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6483 states. [2021-02-19 20:25:48,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6483 to 5087. [2021-02-19 20:25:48,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5087 states, 5086 states have (on average 3.5876917027133306) internal successors, (18247), 5086 states have internal predecessors, (18247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:48,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5087 states to 5087 states and 18247 transitions. [2021-02-19 20:25:48,295 INFO L78 Accepts]: Start accepts. Automaton has 5087 states and 18247 transitions. Word has length 31 [2021-02-19 20:25:48,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:25:48,297 INFO L480 AbstractCegarLoop]: Abstraction has 5087 states and 18247 transitions. [2021-02-19 20:25:48,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 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) [2021-02-19 20:25:48,297 INFO L276 IsEmpty]: Start isEmpty. Operand 5087 states and 18247 transitions. [2021-02-19 20:25:48,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-02-19 20:25:48,305 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:25:48,305 INFO L506 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:25:48,519 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable72 [2021-02-19 20:25:48,520 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:25:48,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:25:48,520 INFO L82 PathProgramCache]: Analyzing trace with hash -100678035, now seen corresponding path program 13 times [2021-02-19 20:25:48,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:25:48,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100139765] [2021-02-19 20:25:48,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:25:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:25:48,545 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 20:25:48,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100139765] [2021-02-19 20:25:48,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465411226] [2021-02-19 20:25:48,546 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 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 [2021-02-19 20:25:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:25:48,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2021-02-19 20:25:48,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:25:48,634 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 20:25:48,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:25:48,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-02-19 20:25:48,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574301060] [2021-02-19 20:25:48,634 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-19 20:25:48,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:25:48,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-19 20:25:48,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-02-19 20:25:48,635 INFO L87 Difference]: Start difference. First operand 5087 states and 18247 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 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) [2021-02-19 20:25:49,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:25:49,226 INFO L93 Difference]: Finished difference Result 8806 states and 29381 transitions. [2021-02-19 20:25:49,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-19 20:25:49,226 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 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 31 [2021-02-19 20:25:49,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:25:49,244 INFO L225 Difference]: With dead ends: 8806 [2021-02-19 20:25:49,244 INFO L226 Difference]: Without dead ends: 8704 [2021-02-19 20:25:49,245 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=341, Invalid=1065, Unknown=0, NotChecked=0, Total=1406 [2021-02-19 20:25:49,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8704 states. [2021-02-19 20:25:49,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8704 to 5354. [2021-02-19 20:25:49,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 5353 states have (on average 3.6069493741827015) internal successors, (19308), 5353 states have internal predecessors, (19308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:25:49,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 19308 transitions. [2021-02-19 20:25:49,358 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 19308 transitions. Word has length 31 [2021-02-19 20:25:49,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:25:49,359 INFO L480 AbstractCegarLoop]: Abstraction has 5354 states and 19308 transitions. [2021-02-19 20:25:49,359 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 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) [2021-02-19 20:25:49,359 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 19308 transitions. [2021-02-19 20:25:49,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 20:25:49,368 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:25:49,368 INFO L506 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:25:49,582 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:25:49,582 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:25:49,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:25:49,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1949632943, now seen corresponding path program 14 times [2021-02-19 20:25:49,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:25:49,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725091018] [2021-02-19 20:25:49,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:25:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:25:50,028 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 41 [2021-02-19 20:25:50,251 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 44 [2021-02-19 20:25:50,388 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 43 [2021-02-19 20:25:50,647 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:25:50,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725091018] [2021-02-19 20:25:50,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444256661] [2021-02-19 20:25:50,648 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 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 [2021-02-19 20:25:50,686 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 20:25:50,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:25:50,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 24 conjunts are in the unsatisfiable core [2021-02-19 20:25:50,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:25:50,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:25:50,973 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:50,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:25:50,980 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:50,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:25:50,986 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:50,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:25:50,996 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:51,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:25:51,003 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:51,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:25:51,013 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:51,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:25:51,021 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:51,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:25:51,033 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:51,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:25:51,040 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:51,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:25:51,053 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:51,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:25:51,062 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:51,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:25:51,068 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:51,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:25:51,084 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:51,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:25:51,092 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:51,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:25:51,100 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:51,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:25:51,107 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:51,431 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-02-19 20:25:51,431 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:25:51,444 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 16 xjuncts. [2021-02-19 20:25:51,444 INFO L247 ElimStorePlain]: Needed 17 recursive calls to eliminate 1 variables, input treesize:1249, output treesize:1233 [2021-02-19 20:25:51,808 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-02-19 20:25:51,993 INFO L446 ElimStorePlain]: Different costs {1=[v_prenex_19, v_C_14, v_prenex_6, v_prenex_9, v_prenex_10, v_prenex_43, v_prenex_31, v_prenex_40, v_prenex_25, v_prenex_13, v_prenex_46, v_prenex_34, v_prenex_22, v_prenex_28, v_prenex_16, v_prenex_37], 3=[v_prenex_8, v_prenex_32, v_prenex_30, v_prenex_36, v_prenex_14, v_prenex_35, v_prenex_12, v_prenex_33, v_prenex_11, v_prenex_18, v_prenex_39, v_prenex_17, v_prenex_38, v_prenex_15, v_prenex_4, v_prenex_5, v_prenex_7, A, B, v_prenex_21, v_prenex_42, v_prenex_20, v_prenex_41, v_prenex_47, v_prenex_24, v_prenex_23, v_prenex_45, v_prenex_44, v_prenex_29, v_prenex_27, v_prenex_48, v_prenex_26]} [2021-02-19 20:25:52,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:25:52,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:25:52,016 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:52,460 WARN L202 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2021-02-19 20:25:52,461 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:25:52,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:25:52,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:25:52,486 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:52,933 WARN L202 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 390 [2021-02-19 20:25:52,934 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:25:52,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:25:52,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:25:52,960 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:53,396 WARN L202 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2021-02-19 20:25:53,397 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:25:53,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:25:53,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:25:53,420 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:53,847 WARN L202 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 384 [2021-02-19 20:25:53,848 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:25:53,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:25:53,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:25:53,872 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:54,296 WARN L202 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 381 [2021-02-19 20:25:54,296 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:25:54,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:25:54,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:25:54,326 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:54,753 WARN L202 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2021-02-19 20:25:54,754 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:25:54,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:25:54,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:25:54,774 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:55,185 WARN L202 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 375 [2021-02-19 20:25:55,186 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:25:55,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:25:55,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:25:55,210 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:55,623 WARN L202 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2021-02-19 20:25:55,624 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:25:55,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:25:55,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:25:55,646 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:56,058 WARN L202 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 369 [2021-02-19 20:25:56,058 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:25:56,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:25:56,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:25:56,085 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:56,488 WARN L202 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 366 [2021-02-19 20:25:56,488 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:25:56,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:25:56,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:25:56,509 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:56,915 WARN L202 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2021-02-19 20:25:56,915 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:25:56,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:25:56,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:25:56,949 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:57,352 WARN L202 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2021-02-19 20:25:57,352 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:25:57,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:25:57,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:25:57,373 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:57,770 WARN L202 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2021-02-19 20:25:57,770 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:25:57,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:25:57,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:25:57,794 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:58,202 WARN L202 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 354 [2021-02-19 20:25:58,202 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:25:58,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:25:58,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:25:58,223 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:58,619 WARN L202 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 351 [2021-02-19 20:25:58,620 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:25:58,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:25:58,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:25:58,652 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:59,048 WARN L202 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 348 [2021-02-19 20:25:59,048 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:25:59,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:25:59,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:25:59,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2021-02-19 20:25:59,067 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:59,450 WARN L202 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 341 [2021-02-19 20:25:59,451 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:25:59,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:25:59,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:25:59,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 39 [2021-02-19 20:25:59,469 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-02-19 20:25:59,857 WARN L202 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 336 [2021-02-19 20:25:59,857 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:25:59,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:25:59,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:25:59,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2021-02-19 20:25:59,877 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:00,243 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 329 [2021-02-19 20:26:00,244 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:00,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:00,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:00,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 39 [2021-02-19 20:26:00,260 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:00,616 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 324 [2021-02-19 20:26:00,617 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:00,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:00,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:00,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2021-02-19 20:26:00,634 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:00,979 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 317 [2021-02-19 20:26:00,979 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:00,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:00,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:00,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 43 [2021-02-19 20:26:00,996 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:01,351 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 159 [2021-02-19 20:26:01,352 INFO L628 ElimStorePlain]: treesize reduction 567, result has 52.0 percent of original size [2021-02-19 20:26:01,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:01,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:01,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 39 [2021-02-19 20:26:01,363 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:01,500 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-19 20:26:01,500 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:01,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:01,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:01,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2021-02-19 20:26:01,512 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:01,780 WARN L202 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 143 [2021-02-19 20:26:01,780 INFO L628 ElimStorePlain]: treesize reduction 9, result has 98.4 percent of original size [2021-02-19 20:26:01,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:01,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:01,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 41 [2021-02-19 20:26:01,792 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:01,988 WARN L202 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 88 [2021-02-19 20:26:01,989 INFO L628 ElimStorePlain]: treesize reduction 162, result has 68.2 percent of original size [2021-02-19 20:26:01,989 INFO L518 ElimStorePlain]: Eliminatee v_prenex_18 vanished before elimination [2021-02-19 20:26:01,989 INFO L518 ElimStorePlain]: Eliminatee v_prenex_39 vanished before elimination [2021-02-19 20:26:01,989 INFO L518 ElimStorePlain]: Eliminatee v_prenex_17 vanished before elimination [2021-02-19 20:26:01,989 INFO L518 ElimStorePlain]: Eliminatee v_prenex_38 vanished before elimination [2021-02-19 20:26:01,989 INFO L518 ElimStorePlain]: Eliminatee v_prenex_15 vanished before elimination [2021-02-19 20:26:01,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:02,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:02,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 39 [2021-02-19 20:26:02,002 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:02,082 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:02,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:02,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:02,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 41 [2021-02-19 20:26:02,092 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:02,187 INFO L628 ElimStorePlain]: treesize reduction 134, result has 55.2 percent of original size [2021-02-19 20:26:02,187 INFO L518 ElimStorePlain]: Eliminatee v_prenex_7 vanished before elimination [2021-02-19 20:26:02,187 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-02-19 20:26:02,187 INFO L518 ElimStorePlain]: Eliminatee B vanished before elimination [2021-02-19 20:26:02,187 INFO L518 ElimStorePlain]: Eliminatee v_prenex_21 vanished before elimination [2021-02-19 20:26:02,187 INFO L518 ElimStorePlain]: Eliminatee v_prenex_42 vanished before elimination [2021-02-19 20:26:02,187 INFO L518 ElimStorePlain]: Eliminatee v_prenex_20 vanished before elimination [2021-02-19 20:26:02,187 INFO L518 ElimStorePlain]: Eliminatee v_prenex_41 vanished before elimination [2021-02-19 20:26:02,187 INFO L518 ElimStorePlain]: Eliminatee v_prenex_47 vanished before elimination [2021-02-19 20:26:02,187 INFO L518 ElimStorePlain]: Eliminatee v_prenex_24 vanished before elimination [2021-02-19 20:26:02,187 INFO L518 ElimStorePlain]: Eliminatee v_prenex_23 vanished before elimination [2021-02-19 20:26:02,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:02,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:02,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 39 [2021-02-19 20:26:02,193 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:02,227 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:02,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:02,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:02,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 41 [2021-02-19 20:26:02,234 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:02,284 INFO L628 ElimStorePlain]: treesize reduction 34, result has 69.6 percent of original size [2021-02-19 20:26:02,285 INFO L518 ElimStorePlain]: Eliminatee v_prenex_29 vanished before elimination [2021-02-19 20:26:02,285 INFO L518 ElimStorePlain]: Eliminatee v_prenex_27 vanished before elimination [2021-02-19 20:26:02,285 INFO L518 ElimStorePlain]: Eliminatee v_prenex_48 vanished before elimination [2021-02-19 20:26:02,285 INFO L518 ElimStorePlain]: Eliminatee v_prenex_26 vanished before elimination [2021-02-19 20:26:02,286 INFO L550 ElimStorePlain]: Start of recursive call 1: 48 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-02-19 20:26:02,286 INFO L247 ElimStorePlain]: Needed 30 recursive calls to eliminate 48 variables, input treesize:1345, output treesize:78 [2021-02-19 20:26:02,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2021-02-19 20:26:02,470 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:02,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-02-19 20:26:02,475 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:02,491 INFO L628 ElimStorePlain]: treesize reduction 100, result has 4.8 percent of original size [2021-02-19 20:26:02,491 INFO L518 ElimStorePlain]: Eliminatee C vanished before elimination [2021-02-19 20:26:02,491 INFO L518 ElimStorePlain]: Eliminatee v_prenex_49 vanished before elimination [2021-02-19 20:26:02,492 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:26:02,492 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:135, output treesize:5 [2021-02-19 20:26:02,505 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:26:02,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:26:02,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-02-19 20:26:02,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428223620] [2021-02-19 20:26:02,507 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-02-19 20:26:02,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:26:02,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-02-19 20:26:02,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2021-02-19 20:26:02,507 INFO L87 Difference]: Start difference. First operand 5354 states and 19308 transitions. Second operand has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 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) [2021-02-19 20:26:02,951 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-02-19 20:26:03,852 WARN L202 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2021-02-19 20:26:04,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:26:04,308 INFO L93 Difference]: Finished difference Result 8320 states and 29218 transitions. [2021-02-19 20:26:04,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 20:26:04,308 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 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 33 [2021-02-19 20:26:04,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:26:04,328 INFO L225 Difference]: With dead ends: 8320 [2021-02-19 20:26:04,328 INFO L226 Difference]: Without dead ends: 8229 [2021-02-19 20:26:04,328 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=168, Invalid=824, Unknown=0, NotChecked=0, Total=992 [2021-02-19 20:26:04,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8229 states. [2021-02-19 20:26:04,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8229 to 5803. [2021-02-19 20:26:04,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5803 states, 5802 states have (on average 3.5910031023784903) internal successors, (20835), 5802 states have internal predecessors, (20835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:26:04,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5803 states to 5803 states and 20835 transitions. [2021-02-19 20:26:04,443 INFO L78 Accepts]: Start accepts. Automaton has 5803 states and 20835 transitions. Word has length 33 [2021-02-19 20:26:04,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:26:04,443 INFO L480 AbstractCegarLoop]: Abstraction has 5803 states and 20835 transitions. [2021-02-19 20:26:04,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 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) [2021-02-19 20:26:04,443 INFO L276 IsEmpty]: Start isEmpty. Operand 5803 states and 20835 transitions. [2021-02-19 20:26:04,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 20:26:04,453 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:26:04,453 INFO L506 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:26:04,668 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2021-02-19 20:26:04,668 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:26:04,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:26:04,669 INFO L82 PathProgramCache]: Analyzing trace with hash -753320501, now seen corresponding path program 15 times [2021-02-19 20:26:04,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:26:04,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18220069] [2021-02-19 20:26:04,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:26:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:26:05,001 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 39 [2021-02-19 20:26:05,136 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 44 [2021-02-19 20:26:05,352 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:26:05,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18220069] [2021-02-19 20:26:05,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379961855] [2021-02-19 20:26:05,352 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 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 [2021-02-19 20:26:05,377 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-02-19 20:26:05,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:26:05,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 31 conjunts are in the unsatisfiable core [2021-02-19 20:26:05,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:26:05,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-02-19 20:26:05,639 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:05,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-02-19 20:26:05,647 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:05,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-02-19 20:26:05,654 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:05,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-02-19 20:26:05,662 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:05,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-02-19 20:26:05,669 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:05,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-02-19 20:26:05,676 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:05,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-02-19 20:26:05,687 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:05,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-02-19 20:26:05,695 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:05,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-02-19 20:26:05,703 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:05,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-02-19 20:26:05,711 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:05,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-02-19 20:26:05,719 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:05,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-02-19 20:26:05,727 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:05,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-02-19 20:26:05,735 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:05,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-02-19 20:26:05,743 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:05,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-02-19 20:26:05,752 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:05,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-02-19 20:26:05,759 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:06,110 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-02-19 20:26:06,111 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:06,118 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 16 xjuncts. [2021-02-19 20:26:06,118 INFO L247 ElimStorePlain]: Needed 17 recursive calls to eliminate 1 variables, input treesize:1153, output treesize:1137 [2021-02-19 20:26:06,472 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-02-19 20:26:06,850 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-02-19 20:26:07,504 WARN L202 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2021-02-19 20:26:08,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2021-02-19 20:26:08,710 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:08,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2021-02-19 20:26:08,739 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:10,916 WARN L202 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 428 DAG size of output: 408 [2021-02-19 20:26:10,918 INFO L628 ElimStorePlain]: treesize reduction 584, result has 75.0 percent of original size [2021-02-19 20:26:10,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2021-02-19 20:26:10,942 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:11,924 WARN L202 SmtUtils]: Spent 981.00 ms on a formula simplification that was a NOOP. DAG size: 404 [2021-02-19 20:26:11,925 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:11,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2021-02-19 20:26:11,953 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:11,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2021-02-19 20:26:11,979 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:12,908 WARN L202 SmtUtils]: Spent 928.00 ms on a formula simplification that was a NOOP. DAG size: 401 [2021-02-19 20:26:12,908 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:12,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 29 [2021-02-19 20:26:12,942 INFO L550 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:12,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-02-19 20:26:12,967 INFO L550 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:13,842 WARN L202 SmtUtils]: Spent 874.00 ms on a formula simplification that was a NOOP. DAG size: 403 [2021-02-19 20:26:13,843 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:13,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 29 [2021-02-19 20:26:13,871 INFO L550 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:13,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-02-19 20:26:13,894 INFO L550 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:14,769 WARN L202 SmtUtils]: Spent 874.00 ms on a formula simplification that was a NOOP. DAG size: 406 [2021-02-19 20:26:14,770 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:14,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2021-02-19 20:26:14,809 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:14,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-02-19 20:26:14,831 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:15,696 WARN L202 SmtUtils]: Spent 865.00 ms on a formula simplification that was a NOOP. DAG size: 401 [2021-02-19 20:26:15,697 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:15,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-02-19 20:26:15,722 INFO L550 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:15,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 34 [2021-02-19 20:26:15,744 INFO L550 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:16,601 WARN L202 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 396 [2021-02-19 20:26:16,602 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:16,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 28 [2021-02-19 20:26:16,623 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:17,452 WARN L202 SmtUtils]: Spent 828.00 ms on a formula simplification that was a NOOP. DAG size: 390 [2021-02-19 20:26:17,452 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:17,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 28 [2021-02-19 20:26:17,472 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:18,539 WARN L202 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 381 DAG size of output: 315 [2021-02-19 20:26:18,540 INFO L628 ElimStorePlain]: treesize reduction 526, result has 66.8 percent of original size [2021-02-19 20:26:18,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-02-19 20:26:18,559 INFO L550 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:18,973 WARN L202 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2021-02-19 20:26:18,973 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:18,973 INFO L518 ElimStorePlain]: Eliminatee v_prenex_76 vanished before elimination [2021-02-19 20:26:18,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2021-02-19 20:26:18,992 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:19,407 WARN L202 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 308 [2021-02-19 20:26:19,407 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:19,407 INFO L518 ElimStorePlain]: Eliminatee v_prenex_75 vanished before elimination [2021-02-19 20:26:19,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2021-02-19 20:26:19,423 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:19,839 WARN L202 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 303 [2021-02-19 20:26:19,840 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:19,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2021-02-19 20:26:19,856 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:20,279 WARN L202 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 296 [2021-02-19 20:26:20,279 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:20,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-02-19 20:26:20,296 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:20,639 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 109 [2021-02-19 20:26:20,640 INFO L628 ElimStorePlain]: treesize reduction 535, result has 45.2 percent of original size [2021-02-19 20:26:20,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 28 [2021-02-19 20:26:20,648 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:20,855 WARN L202 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2021-02-19 20:26:20,856 INFO L628 ElimStorePlain]: treesize reduction 132, result has 68.5 percent of original size [2021-02-19 20:26:20,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 29 [2021-02-19 20:26:20,863 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:20,943 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:20,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-02-19 20:26:20,951 INFO L550 ElimStorePlain]: Start of recursive call 24: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:21,040 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:21,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-02-19 20:26:21,050 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:21,133 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:21,134 INFO L518 ElimStorePlain]: Eliminatee v_prenex_79 vanished before elimination [2021-02-19 20:26:21,134 INFO L518 ElimStorePlain]: Eliminatee v_prenex_56 vanished before elimination [2021-02-19 20:26:21,134 INFO L518 ElimStorePlain]: Eliminatee v_prenex_78 vanished before elimination [2021-02-19 20:26:21,134 INFO L518 ElimStorePlain]: Eliminatee v_prenex_55 vanished before elimination [2021-02-19 20:26:21,134 INFO L518 ElimStorePlain]: Eliminatee v_prenex_77 vanished before elimination [2021-02-19 20:26:21,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 33 [2021-02-19 20:26:21,143 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:21,224 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:21,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-02-19 20:26:21,238 INFO L550 ElimStorePlain]: Start of recursive call 27: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:21,305 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:21,305 INFO L518 ElimStorePlain]: Eliminatee v_prenex_61 vanished before elimination [2021-02-19 20:26:21,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 30 [2021-02-19 20:26:21,312 INFO L550 ElimStorePlain]: Start of recursive call 28: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:21,373 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:21,373 INFO L518 ElimStorePlain]: Eliminatee v_prenex_60 vanished before elimination [2021-02-19 20:26:21,373 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-02-19 20:26:21,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-02-19 20:26:21,382 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:21,442 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:21,442 INFO L518 ElimStorePlain]: Eliminatee B vanished before elimination [2021-02-19 20:26:21,442 INFO L518 ElimStorePlain]: Eliminatee v_prenex_80 vanished before elimination [2021-02-19 20:26:21,442 INFO L518 ElimStorePlain]: Eliminatee v_prenex_87 vanished before elimination [2021-02-19 20:26:21,442 INFO L518 ElimStorePlain]: Eliminatee v_prenex_65 vanished before elimination [2021-02-19 20:26:21,442 INFO L518 ElimStorePlain]: Eliminatee v_prenex_64 vanished before elimination [2021-02-19 20:26:21,443 INFO L518 ElimStorePlain]: Eliminatee v_prenex_86 vanished before elimination [2021-02-19 20:26:21,443 INFO L518 ElimStorePlain]: Eliminatee v_prenex_63 vanished before elimination [2021-02-19 20:26:21,443 INFO L518 ElimStorePlain]: Eliminatee v_prenex_85 vanished before elimination [2021-02-19 20:26:21,443 INFO L518 ElimStorePlain]: Eliminatee v_prenex_62 vanished before elimination [2021-02-19 20:26:21,443 INFO L518 ElimStorePlain]: Eliminatee v_prenex_84 vanished before elimination [2021-02-19 20:26:21,443 INFO L518 ElimStorePlain]: Eliminatee v_prenex_69 vanished before elimination [2021-02-19 20:26:21,443 INFO L518 ElimStorePlain]: Eliminatee v_prenex_68 vanished before elimination [2021-02-19 20:26:21,443 INFO L518 ElimStorePlain]: Eliminatee v_prenex_89 vanished before elimination [2021-02-19 20:26:21,443 INFO L518 ElimStorePlain]: Eliminatee v_prenex_67 vanished before elimination [2021-02-19 20:26:21,443 INFO L518 ElimStorePlain]: Eliminatee v_prenex_88 vanished before elimination [2021-02-19 20:26:21,443 INFO L518 ElimStorePlain]: Eliminatee v_prenex_66 vanished before elimination [2021-02-19 20:26:21,445 INFO L550 ElimStorePlain]: Start of recursive call 1: 48 dim-1 vars, End of recursive call: and 5 xjuncts. [2021-02-19 20:26:21,445 INFO L247 ElimStorePlain]: Needed 29 recursive calls to eliminate 48 variables, input treesize:2337, output treesize:133 [2021-02-19 20:26:21,850 INFO L354 Elim1Store]: treesize reduction 4, result has 76.5 percent of original size [2021-02-19 20:26:21,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 29 [2021-02-19 20:26:21,857 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:22,003 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 44 [2021-02-19 20:26:22,003 INFO L628 ElimStorePlain]: treesize reduction 123, result has 56.7 percent of original size [2021-02-19 20:26:22,004 INFO L518 ElimStorePlain]: Eliminatee v_prenex_98 vanished before elimination [2021-02-19 20:26:22,031 INFO L354 Elim1Store]: treesize reduction 4, result has 76.5 percent of original size [2021-02-19 20:26:22,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 24 [2021-02-19 20:26:22,038 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:22,047 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-02-19 20:26:22,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 1 [2021-02-19 20:26:22,049 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:22,096 INFO L628 ElimStorePlain]: treesize reduction 78, result has 36.1 percent of original size [2021-02-19 20:26:22,097 INFO L518 ElimStorePlain]: Eliminatee v_prenex_96 vanished before elimination [2021-02-19 20:26:22,097 INFO L518 ElimStorePlain]: Eliminatee v_prenex_99 vanished before elimination [2021-02-19 20:26:22,100 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 5 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-02-19 20:26:22,100 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:301, output treesize:50 [2021-02-19 20:26:22,188 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:26:22,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:26:22,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 26 [2021-02-19 20:26:22,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532126537] [2021-02-19 20:26:22,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-19 20:26:22,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:26:22,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-19 20:26:22,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=584, Unknown=0, NotChecked=0, Total=702 [2021-02-19 20:26:22,189 INFO L87 Difference]: Start difference. First operand 5803 states and 20835 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) [2021-02-19 20:26:22,737 WARN L202 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 66 [2021-02-19 20:26:23,098 WARN L202 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 66 [2021-02-19 20:26:23,755 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2021-02-19 20:26:24,438 WARN L202 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-02-19 20:26:24,625 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2021-02-19 20:26:24,995 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 36 [2021-02-19 20:26:25,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:26:25,243 INFO L93 Difference]: Finished difference Result 8411 states and 29291 transitions. [2021-02-19 20:26:25,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-02-19 20:26:25,243 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 33 [2021-02-19 20:26:25,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:26:25,262 INFO L225 Difference]: With dead ends: 8411 [2021-02-19 20:26:25,262 INFO L226 Difference]: Without dead ends: 8158 [2021-02-19 20:26:25,263 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=262, Invalid=1378, Unknown=0, NotChecked=0, Total=1640 [2021-02-19 20:26:25,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8158 states. [2021-02-19 20:26:25,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8158 to 5828. [2021-02-19 20:26:25,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5828 states, 5827 states have (on average 3.591384932212116) internal successors, (20927), 5827 states have internal predecessors, (20927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:26:25,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5828 states to 5828 states and 20927 transitions. [2021-02-19 20:26:25,388 INFO L78 Accepts]: Start accepts. Automaton has 5828 states and 20927 transitions. Word has length 33 [2021-02-19 20:26:25,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:26:25,389 INFO L480 AbstractCegarLoop]: Abstraction has 5828 states and 20927 transitions. [2021-02-19 20:26:25,389 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) [2021-02-19 20:26:25,389 INFO L276 IsEmpty]: Start isEmpty. Operand 5828 states and 20927 transitions. [2021-02-19 20:26:25,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 20:26:25,400 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:26:25,400 INFO L506 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:26:25,614 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:26:25,614 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:26:25,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:26:25,615 INFO L82 PathProgramCache]: Analyzing trace with hash 835057743, now seen corresponding path program 16 times [2021-02-19 20:26:25,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:26:25,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756757908] [2021-02-19 20:26:25,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:26:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:26:26,098 WARN L202 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 58 [2021-02-19 20:26:26,268 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 44 [2021-02-19 20:26:26,414 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 35 [2021-02-19 20:26:26,584 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 41 [2021-02-19 20:26:26,741 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:26:26,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756757908] [2021-02-19 20:26:26,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240526353] [2021-02-19 20:26:26,741 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:26:26,765 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 20:26:26,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:26:26,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 28 conjunts are in the unsatisfiable core [2021-02-19 20:26:26,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:26:26,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:26:26,965 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:26,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:26:26,976 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:26,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:26:26,984 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:26,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:26:26,991 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:27,086 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:27,088 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-02-19 20:26:27,088 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:269, output treesize:265 [2021-02-19 20:26:27,423 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-02-19 20:26:27,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-02-19 20:26:27,828 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:27,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-02-19 20:26:27,846 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:27,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-02-19 20:26:27,864 INFO L550 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:27,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-02-19 20:26:27,878 INFO L550 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:28,396 WARN L202 SmtUtils]: Spent 517.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-02-19 20:26:28,397 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:28,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-02-19 20:26:28,419 INFO L550 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:28,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2021-02-19 20:26:28,440 INFO L550 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:28,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-02-19 20:26:28,480 INFO L550 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:28,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2021-02-19 20:26:28,509 INFO L550 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:29,025 WARN L202 SmtUtils]: Spent 515.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-02-19 20:26:29,026 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:29,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2021-02-19 20:26:29,043 INFO L550 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:29,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 34 [2021-02-19 20:26:29,061 INFO L550 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:29,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2021-02-19 20:26:29,079 INFO L550 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:29,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 34 [2021-02-19 20:26:29,093 INFO L550 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:29,973 WARN L202 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2021-02-19 20:26:29,974 INFO L628 ElimStorePlain]: treesize reduction 20, result has 97.9 percent of original size [2021-02-19 20:26:29,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 30 [2021-02-19 20:26:30,004 INFO L550 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:30,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 30 [2021-02-19 20:26:30,024 INFO L550 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:30,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 30 [2021-02-19 20:26:30,042 INFO L550 ElimStorePlain]: Start of recursive call 16: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:30,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 30 [2021-02-19 20:26:30,057 INFO L550 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:30,453 WARN L202 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-02-19 20:26:30,453 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:30,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2021-02-19 20:26:30,471 INFO L550 ElimStorePlain]: Start of recursive call 18: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:30,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-02-19 20:26:30,490 INFO L550 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:30,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2021-02-19 20:26:30,528 INFO L550 ElimStorePlain]: Start of recursive call 20: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:30,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-02-19 20:26:30,542 INFO L550 ElimStorePlain]: Start of recursive call 21: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:30,967 WARN L202 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-02-19 20:26:30,967 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:30,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-02-19 20:26:30,984 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:30,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-02-19 20:26:31,001 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:31,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-02-19 20:26:31,019 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:31,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-02-19 20:26:31,034 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:31,406 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2021-02-19 20:26:31,406 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:31,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2021-02-19 20:26:31,425 INFO L550 ElimStorePlain]: Start of recursive call 26: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:31,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 30 [2021-02-19 20:26:31,444 INFO L550 ElimStorePlain]: Start of recursive call 27: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:31,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 30 [2021-02-19 20:26:31,464 INFO L550 ElimStorePlain]: Start of recursive call 28: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:31,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2021-02-19 20:26:31,479 INFO L550 ElimStorePlain]: Start of recursive call 29: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:31,810 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2021-02-19 20:26:31,811 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:31,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-02-19 20:26:31,829 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:31,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-02-19 20:26:31,846 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:31,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-02-19 20:26:31,863 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:31,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-02-19 20:26:31,880 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:32,197 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-02-19 20:26:32,197 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:32,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-02-19 20:26:32,217 INFO L550 ElimStorePlain]: Start of recursive call 34: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:32,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-02-19 20:26:32,238 INFO L550 ElimStorePlain]: Start of recursive call 35: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:32,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-02-19 20:26:32,259 INFO L550 ElimStorePlain]: Start of recursive call 36: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:32,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-02-19 20:26:32,279 INFO L550 ElimStorePlain]: Start of recursive call 37: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:32,616 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2021-02-19 20:26:32,617 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:32,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2021-02-19 20:26:32,641 INFO L550 ElimStorePlain]: Start of recursive call 38: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:32,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 34 [2021-02-19 20:26:32,662 INFO L550 ElimStorePlain]: Start of recursive call 39: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:32,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 34 [2021-02-19 20:26:32,687 INFO L550 ElimStorePlain]: Start of recursive call 40: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:32,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2021-02-19 20:26:32,707 INFO L550 ElimStorePlain]: Start of recursive call 41: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:26:32,998 WARN L202 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2021-02-19 20:26:32,998 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:33,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-02-19 20:26:33,020 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:33,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-02-19 20:26:33,038 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:33,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-02-19 20:26:33,056 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:33,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-02-19 20:26:33,073 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:33,327 WARN L202 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2021-02-19 20:26:33,328 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:33,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2021-02-19 20:26:33,346 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:33,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2021-02-19 20:26:33,364 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:33,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2021-02-19 20:26:33,382 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:33,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2021-02-19 20:26:33,398 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:33,629 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-02-19 20:26:33,629 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:33,636 INFO L550 ElimStorePlain]: Start of recursive call 1: 12 dim-1 vars, End of recursive call: and 11 xjuncts. [2021-02-19 20:26:33,637 INFO L247 ElimStorePlain]: Needed 49 recursive calls to eliminate 12 variables, input treesize:1169, output treesize:268 [2021-02-19 20:26:33,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-02-19 20:26:33,957 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:33,977 INFO L628 ElimStorePlain]: treesize reduction 108, result has 4.4 percent of original size [2021-02-19 20:26:33,977 INFO L518 ElimStorePlain]: Eliminatee C vanished before elimination [2021-02-19 20:26:33,977 INFO L518 ElimStorePlain]: Eliminatee v_prenex_110 vanished before elimination [2021-02-19 20:26:33,977 INFO L518 ElimStorePlain]: Eliminatee v_prenex_111 vanished before elimination [2021-02-19 20:26:33,978 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:26:33,978 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:128, output treesize:5 [2021-02-19 20:26:33,992 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:26:33,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:26:33,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-02-19 20:26:33,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523769110] [2021-02-19 20:26:33,993 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-02-19 20:26:33,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:26:33,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-02-19 20:26:33,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=413, Unknown=0, NotChecked=0, Total=506 [2021-02-19 20:26:33,994 INFO L87 Difference]: Start difference. First operand 5828 states and 20927 transitions. Second operand has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 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) [2021-02-19 20:26:34,247 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 48 [2021-02-19 20:26:34,443 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 56 [2021-02-19 20:26:34,816 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2021-02-19 20:26:35,338 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2021-02-19 20:26:35,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:26:35,993 INFO L93 Difference]: Finished difference Result 10027 states and 34871 transitions. [2021-02-19 20:26:35,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 20:26:35,994 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 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 33 [2021-02-19 20:26:35,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:26:36,016 INFO L225 Difference]: With dead ends: 10027 [2021-02-19 20:26:36,017 INFO L226 Difference]: Without dead ends: 9878 [2021-02-19 20:26:36,017 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=182, Invalid=874, Unknown=0, NotChecked=0, Total=1056 [2021-02-19 20:26:36,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9878 states. [2021-02-19 20:26:36,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9878 to 5995. [2021-02-19 20:26:36,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5995 states, 5994 states have (on average 3.5820820820820822) internal successors, (21471), 5994 states have internal predecessors, (21471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:26:36,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5995 states to 5995 states and 21471 transitions. [2021-02-19 20:26:36,184 INFO L78 Accepts]: Start accepts. Automaton has 5995 states and 21471 transitions. Word has length 33 [2021-02-19 20:26:36,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:26:36,184 INFO L480 AbstractCegarLoop]: Abstraction has 5995 states and 21471 transitions. [2021-02-19 20:26:36,184 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 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) [2021-02-19 20:26:36,184 INFO L276 IsEmpty]: Start isEmpty. Operand 5995 states and 21471 transitions. [2021-02-19 20:26:36,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 20:26:36,199 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:26:36,199 INFO L506 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:26:36,414 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable313 [2021-02-19 20:26:36,415 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:26:36,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:26:36,415 INFO L82 PathProgramCache]: Analyzing trace with hash 2031370185, now seen corresponding path program 17 times [2021-02-19 20:26:36,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:26:36,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692153140] [2021-02-19 20:26:36,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:26:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:26:37,071 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 46 [2021-02-19 20:26:37,448 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 48 [2021-02-19 20:26:37,907 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:26:37,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692153140] [2021-02-19 20:26:37,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902848526] [2021-02-19 20:26:37,908 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 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 [2021-02-19 20:26:37,933 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-02-19 20:26:37,934 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:26:37,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 34 conjunts are in the unsatisfiable core [2021-02-19 20:26:37,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:26:38,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-02-19 20:26:38,142 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:38,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-02-19 20:26:38,151 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:38,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-02-19 20:26:38,159 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:38,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-02-19 20:26:38,166 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:38,286 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-02-19 20:26:38,287 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:38,288 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-02-19 20:26:38,289 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:249, output treesize:245 [2021-02-19 20:26:38,449 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-02-19 20:26:38,798 WARN L202 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-02-19 20:26:39,177 WARN L202 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-02-19 20:26:39,687 WARN L202 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2021-02-19 20:26:40,696 INFO L446 ElimStorePlain]: Different costs {1=[v_prenex_118, v_C_20, v_prenex_130, v_prenex_121, v_prenex_124, v_prenex_114, v_prenex_127, v_prenex_117], 3=[v_prenex_120, v_prenex_131, v_prenex_132, v_prenex_122, v_prenex_112, v_prenex_123, v_prenex_113, v_prenex_125, v_prenex_115, v_prenex_126, v_prenex_116, v_prenex_128, v_prenex_129, A, v_prenex_119, B]} [2021-02-19 20:26:40,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:40,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:26:40,723 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:40,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:40,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:26:40,746 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:40,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:40,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:26:40,768 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:40,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:40,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:26:40,795 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:43,064 WARN L202 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 250 DAG size of output: 236 [2021-02-19 20:26:43,065 INFO L628 ElimStorePlain]: treesize reduction 662, result has 75.0 percent of original size [2021-02-19 20:26:43,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:43,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:26:43,088 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:43,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:43,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:26:43,107 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:44,245 WARN L202 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 234 [2021-02-19 20:26:44,245 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:44,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:44,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:26:44,268 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:44,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:44,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:26:44,291 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:44,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:44,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:26:44,314 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:44,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:44,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:26:44,336 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:45,503 WARN L202 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 231 [2021-02-19 20:26:45,504 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:45,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:45,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:26:45,527 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:45,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:45,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:26:45,549 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:45,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:45,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:26:45,572 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:45,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:45,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:26:45,593 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:46,652 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 228 [2021-02-19 20:26:46,653 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:46,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:46,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:26:46,676 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:46,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:46,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:26:46,698 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:46,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:46,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:26:46,722 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:46,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:46,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:26:46,759 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:47,834 WARN L202 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 225 [2021-02-19 20:26:47,835 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:47,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:47,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:26:47,856 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:47,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:47,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:26:47,877 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:48,900 WARN L202 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 222 [2021-02-19 20:26:48,900 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:48,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:48,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:26:48,922 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:48,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:48,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:26:48,944 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:48,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:48,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:26:48,967 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:48,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:48,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:26:48,989 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:50,022 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 219 [2021-02-19 20:26:50,022 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:50,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:50,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:26:50,047 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:50,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:50,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:26:50,069 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:51,155 WARN L202 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 216 [2021-02-19 20:26:51,156 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:51,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:51,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:51,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 39 [2021-02-19 20:26:51,181 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:51,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:51,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:51,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 39 [2021-02-19 20:26:51,200 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:52,300 WARN L202 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 211 [2021-02-19 20:26:52,301 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:52,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:52,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:52,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 39 [2021-02-19 20:26:52,325 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:52,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:52,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:52,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 39 [2021-02-19 20:26:52,349 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:52,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:52,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:52,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 41 [2021-02-19 20:26:52,378 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:52,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:52,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:52,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 32 [2021-02-19 20:26:52,396 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:54,346 WARN L202 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 206 DAG size of output: 204 [2021-02-19 20:26:54,347 INFO L628 ElimStorePlain]: treesize reduction 114, result has 94.0 percent of original size [2021-02-19 20:26:54,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:54,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:54,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 37 [2021-02-19 20:26:54,366 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:54,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:54,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:54,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 41 [2021-02-19 20:26:54,383 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:54,859 WARN L202 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 68 [2021-02-19 20:26:54,860 INFO L628 ElimStorePlain]: treesize reduction 1308, result has 23.2 percent of original size [2021-02-19 20:26:54,860 INFO L518 ElimStorePlain]: Eliminatee v_prenex_122 vanished before elimination [2021-02-19 20:26:54,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:54,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:54,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 32 [2021-02-19 20:26:54,877 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:54,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:54,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:54,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 41 [2021-02-19 20:26:54,893 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:55,040 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-02-19 20:26:55,041 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:55,041 INFO L518 ElimStorePlain]: Eliminatee v_prenex_123 vanished before elimination [2021-02-19 20:26:55,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:55,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:55,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 30 [2021-02-19 20:26:55,057 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:55,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:55,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:55,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 26 [2021-02-19 20:26:55,068 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:55,227 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2021-02-19 20:26:55,228 INFO L628 ElimStorePlain]: treesize reduction 118, result has 58.0 percent of original size [2021-02-19 20:26:55,228 INFO L518 ElimStorePlain]: Eliminatee v_prenex_125 vanished before elimination [2021-02-19 20:26:55,228 INFO L518 ElimStorePlain]: Eliminatee v_prenex_115 vanished before elimination [2021-02-19 20:26:55,228 INFO L518 ElimStorePlain]: Eliminatee v_prenex_126 vanished before elimination [2021-02-19 20:26:55,228 INFO L518 ElimStorePlain]: Eliminatee v_prenex_116 vanished before elimination [2021-02-19 20:26:55,228 INFO L518 ElimStorePlain]: Eliminatee v_prenex_128 vanished before elimination [2021-02-19 20:26:55,228 INFO L518 ElimStorePlain]: Eliminatee v_prenex_129 vanished before elimination [2021-02-19 20:26:55,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:55,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:55,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 32 [2021-02-19 20:26:55,238 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:55,304 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:26:55,304 INFO L518 ElimStorePlain]: Eliminatee v_prenex_119 vanished before elimination [2021-02-19 20:26:55,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:55,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:26:55,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 30 [2021-02-19 20:26:55,317 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:55,462 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 23 [2021-02-19 20:26:55,462 INFO L628 ElimStorePlain]: treesize reduction 36, result has 68.4 percent of original size [2021-02-19 20:26:55,464 INFO L550 ElimStorePlain]: Start of recursive call 1: 24 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-02-19 20:26:55,464 INFO L247 ElimStorePlain]: Needed 41 recursive calls to eliminate 24 variables, input treesize:2657, output treesize:78 [2021-02-19 20:26:55,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2021-02-19 20:26:55,596 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:55,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2021-02-19 20:26:55,602 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:26:55,621 INFO L628 ElimStorePlain]: treesize reduction 88, result has 5.4 percent of original size [2021-02-19 20:26:55,621 INFO L518 ElimStorePlain]: Eliminatee v_prenex_133 vanished before elimination [2021-02-19 20:26:55,622 INFO L518 ElimStorePlain]: Eliminatee v_prenex_134 vanished before elimination [2021-02-19 20:26:55,622 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:26:55,623 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:135, output treesize:5 [2021-02-19 20:26:55,641 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:26:55,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:26:55,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 24 [2021-02-19 20:26:55,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874123417] [2021-02-19 20:26:55,641 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-19 20:26:55,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:26:55,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-19 20:26:55,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=487, Unknown=0, NotChecked=0, Total=600 [2021-02-19 20:26:55,642 INFO L87 Difference]: Start difference. First operand 5995 states and 21471 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) [2021-02-19 20:26:55,941 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2021-02-19 20:26:56,243 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2021-02-19 20:26:56,845 WARN L202 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 50 [2021-02-19 20:26:57,883 WARN L202 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 61 [2021-02-19 20:26:58,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:26:58,652 INFO L93 Difference]: Finished difference Result 8627 states and 29955 transitions. [2021-02-19 20:26:58,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-19 20:26:58,653 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 33 [2021-02-19 20:26:58,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:26:58,671 INFO L225 Difference]: With dead ends: 8627 [2021-02-19 20:26:58,671 INFO L226 Difference]: Without dead ends: 8310 [2021-02-19 20:26:58,672 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=180, Invalid=812, Unknown=0, NotChecked=0, Total=992 [2021-02-19 20:26:58,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8310 states. [2021-02-19 20:26:58,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8310 to 6027. [2021-02-19 20:26:58,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6027 states, 6026 states have (on average 3.576501825423166) internal successors, (21552), 6026 states have internal predecessors, (21552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:26:58,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6027 states to 6027 states and 21552 transitions. [2021-02-19 20:26:58,785 INFO L78 Accepts]: Start accepts. Automaton has 6027 states and 21552 transitions. Word has length 33 [2021-02-19 20:26:58,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:26:58,786 INFO L480 AbstractCegarLoop]: Abstraction has 6027 states and 21552 transitions. [2021-02-19 20:26:58,786 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) [2021-02-19 20:26:58,786 INFO L276 IsEmpty]: Start isEmpty. Operand 6027 states and 21552 transitions. [2021-02-19 20:26:58,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 20:26:58,796 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:26:58,796 INFO L506 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:26:59,010 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:26:59,010 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:26:59,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:26:59,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1285432143, now seen corresponding path program 18 times [2021-02-19 20:26:59,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:26:59,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076750849] [2021-02-19 20:26:59,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:26:59,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:26:59,506 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 38 [2021-02-19 20:26:59,675 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 43 [2021-02-19 20:26:59,866 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 49 [2021-02-19 20:27:00,027 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 47 [2021-02-19 20:27:00,202 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:27:00,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076750849] [2021-02-19 20:27:00,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100743324] [2021-02-19 20:27:00,203 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 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 [2021-02-19 20:27:00,227 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-02-19 20:27:00,227 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:27:00,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 27 conjunts are in the unsatisfiable core [2021-02-19 20:27:00,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:27:00,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:27:00,470 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:00,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:27:00,478 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:00,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:27:00,487 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:00,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:27:00,494 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:00,611 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-02-19 20:27:00,612 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:00,614 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-02-19 20:27:00,614 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:277, output treesize:273 [2021-02-19 20:27:00,772 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-02-19 20:27:00,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:00,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:27:00,802 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:00,933 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-02-19 20:27:00,934 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:00,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:00,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:27:00,945 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:01,068 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-02-19 20:27:01,069 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:01,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:01,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:27:01,080 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:01,196 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-02-19 20:27:01,197 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:01,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:01,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:27:01,208 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:01,322 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-02-19 20:27:01,322 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:01,324 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-02-19 20:27:01,324 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:309, output treesize:305 [2021-02-19 20:27:01,473 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-02-19 20:27:01,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2021-02-19 20:27:01,878 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:01,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 35 [2021-02-19 20:27:01,895 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:01,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2021-02-19 20:27:01,912 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:01,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 35 [2021-02-19 20:27:01,924 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:02,477 WARN L202 SmtUtils]: Spent 552.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-02-19 20:27:02,478 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:02,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 37 [2021-02-19 20:27:02,507 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:02,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 33 [2021-02-19 20:27:02,522 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:02,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 33 [2021-02-19 20:27:02,538 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:02,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-02-19 20:27:02,547 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:02,947 WARN L202 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 49 [2021-02-19 20:27:02,947 INFO L628 ElimStorePlain]: treesize reduction 623, result has 35.5 percent of original size [2021-02-19 20:27:02,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2021-02-19 20:27:02,959 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:02,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2021-02-19 20:27:02,970 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:02,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 35 [2021-02-19 20:27:02,981 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:02,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 35 [2021-02-19 20:27:02,988 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:03,095 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-02-19 20:27:03,096 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:03,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 37 [2021-02-19 20:27:03,107 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:03,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 33 [2021-02-19 20:27:03,118 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:03,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-02-19 20:27:03,132 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:03,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 33 [2021-02-19 20:27:03,139 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:03,200 INFO L628 ElimStorePlain]: treesize reduction 97, result has 34.5 percent of original size [2021-02-19 20:27:03,200 INFO L518 ElimStorePlain]: Eliminatee v_prenex_142 vanished before elimination [2021-02-19 20:27:03,200 INFO L518 ElimStorePlain]: Eliminatee v_prenex_143 vanished before elimination [2021-02-19 20:27:03,200 INFO L518 ElimStorePlain]: Eliminatee v_prenex_138 vanished before elimination [2021-02-19 20:27:03,200 INFO L518 ElimStorePlain]: Eliminatee v_prenex_139 vanished before elimination [2021-02-19 20:27:03,201 INFO L550 ElimStorePlain]: Start of recursive call 1: 8 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-02-19 20:27:03,201 INFO L247 ElimStorePlain]: Needed 17 recursive calls to eliminate 8 variables, input treesize:1169, output treesize:47 [2021-02-19 20:27:03,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-02-19 20:27:03,446 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:03,461 INFO L628 ElimStorePlain]: treesize reduction 41, result has 10.9 percent of original size [2021-02-19 20:27:03,462 INFO L518 ElimStorePlain]: Eliminatee v_prenex_144 vanished before elimination [2021-02-19 20:27:03,463 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:27:03,463 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:61, output treesize:5 [2021-02-19 20:27:03,477 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:27:03,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:27:03,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-02-19 20:27:03,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326474799] [2021-02-19 20:27:03,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-02-19 20:27:03,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:27:03,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-02-19 20:27:03,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2021-02-19 20:27:03,479 INFO L87 Difference]: Start difference. First operand 6027 states and 21552 transitions. Second operand has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 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) [2021-02-19 20:27:03,674 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2021-02-19 20:27:03,853 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2021-02-19 20:27:04,248 WARN L202 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2021-02-19 20:27:04,664 WARN L202 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2021-02-19 20:27:05,187 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 54 [2021-02-19 20:27:05,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:27:05,920 INFO L93 Difference]: Finished difference Result 8561 states and 29979 transitions. [2021-02-19 20:27:05,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 20:27:05,922 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 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 33 [2021-02-19 20:27:05,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:27:05,940 INFO L225 Difference]: With dead ends: 8561 [2021-02-19 20:27:05,940 INFO L226 Difference]: Without dead ends: 8478 [2021-02-19 20:27:05,940 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=164, Invalid=766, Unknown=0, NotChecked=0, Total=930 [2021-02-19 20:27:05,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8478 states. [2021-02-19 20:27:06,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8478 to 6135. [2021-02-19 20:27:06,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6135 states, 6134 states have (on average 3.5758069775024452) internal successors, (21934), 6134 states have internal predecessors, (21934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:27:06,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6135 states to 6135 states and 21934 transitions. [2021-02-19 20:27:06,052 INFO L78 Accepts]: Start accepts. Automaton has 6135 states and 21934 transitions. Word has length 33 [2021-02-19 20:27:06,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:27:06,052 INFO L480 AbstractCegarLoop]: Abstraction has 6135 states and 21934 transitions. [2021-02-19 20:27:06,052 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 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) [2021-02-19 20:27:06,052 INFO L276 IsEmpty]: Start isEmpty. Operand 6135 states and 21934 transitions. [2021-02-19 20:27:06,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 20:27:06,063 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:27:06,063 INFO L506 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:27:06,278 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable522 [2021-02-19 20:27:06,278 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:27:06,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:27:06,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1956565763, now seen corresponding path program 19 times [2021-02-19 20:27:06,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:27:06,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474467574] [2021-02-19 20:27:06,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:27:06,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:27:06,718 WARN L202 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 43 [2021-02-19 20:27:06,947 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 41 [2021-02-19 20:27:07,260 WARN L202 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 47 [2021-02-19 20:27:07,554 WARN L202 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 52 [2021-02-19 20:27:07,768 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:27:07,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474467574] [2021-02-19 20:27:07,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909400378] [2021-02-19 20:27:07,768 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 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 [2021-02-19 20:27:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:27:07,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 24 conjunts are in the unsatisfiable core [2021-02-19 20:27:07,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:27:08,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:27:08,031 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:08,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:27:08,040 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:08,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:27:08,050 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:08,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:27:08,059 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:08,166 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-02-19 20:27:08,167 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:08,168 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-02-19 20:27:08,168 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:269, output treesize:265 [2021-02-19 20:27:08,306 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-02-19 20:27:08,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:08,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:27:08,341 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:08,474 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-02-19 20:27:08,474 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:08,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:08,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:27:08,491 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:08,630 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-02-19 20:27:08,630 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:08,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:08,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:27:08,647 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:08,776 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-02-19 20:27:08,776 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:08,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:08,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:27:08,789 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:08,911 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-02-19 20:27:08,912 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:08,914 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-02-19 20:27:08,914 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:301, output treesize:297 [2021-02-19 20:27:09,092 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-02-19 20:27:09,442 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-02-19 20:27:11,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:11,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:11,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 39 [2021-02-19 20:27:11,383 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:11,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:11,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:11,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 32 [2021-02-19 20:27:11,407 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:14,849 WARN L202 SmtUtils]: Spent 3.44 s on a formula simplification. DAG size of input: 360 DAG size of output: 347 [2021-02-19 20:27:14,850 INFO L628 ElimStorePlain]: treesize reduction 321, result has 87.4 percent of original size [2021-02-19 20:27:14,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:14,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:14,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 26 [2021-02-19 20:27:14,874 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:16,879 WARN L202 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 339 DAG size of output: 292 [2021-02-19 20:27:16,880 INFO L628 ElimStorePlain]: treesize reduction 865, result has 60.6 percent of original size [2021-02-19 20:27:16,880 INFO L518 ElimStorePlain]: Eliminatee v_prenex_162 vanished before elimination [2021-02-19 20:27:16,880 INFO L518 ElimStorePlain]: Eliminatee v_prenex_163 vanished before elimination [2021-02-19 20:27:16,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:16,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:16,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2021-02-19 20:27:16,902 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:17,624 WARN L202 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2021-02-19 20:27:17,625 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:17,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:17,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:17,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2021-02-19 20:27:17,646 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:18,396 WARN L202 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 278 [2021-02-19 20:27:18,396 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:18,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:18,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:18,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 32 [2021-02-19 20:27:18,426 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:18,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:18,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:18,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 39 [2021-02-19 20:27:18,460 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:19,191 WARN L202 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 273 [2021-02-19 20:27:19,191 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:19,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:19,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:19,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 30 [2021-02-19 20:27:19,218 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:19,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:19,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:19,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 39 [2021-02-19 20:27:19,239 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:20,645 WARN L202 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 261 DAG size of output: 260 [2021-02-19 20:27:20,646 INFO L628 ElimStorePlain]: treesize reduction 51, result has 95.8 percent of original size [2021-02-19 20:27:20,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:20,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:20,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 39 [2021-02-19 20:27:20,668 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:21,374 WARN L202 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2021-02-19 20:27:21,375 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:21,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:21,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:21,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 41 [2021-02-19 20:27:21,397 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:22,109 WARN L202 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 90 [2021-02-19 20:27:22,110 INFO L628 ElimStorePlain]: treesize reduction 592, result has 45.8 percent of original size [2021-02-19 20:27:22,110 INFO L518 ElimStorePlain]: Eliminatee v_prenex_148 vanished before elimination [2021-02-19 20:27:22,110 INFO L518 ElimStorePlain]: Eliminatee v_prenex_149 vanished before elimination [2021-02-19 20:27:22,110 INFO L518 ElimStorePlain]: Eliminatee v_prenex_170 vanished before elimination [2021-02-19 20:27:22,110 INFO L518 ElimStorePlain]: Eliminatee v_prenex_171 vanished before elimination [2021-02-19 20:27:22,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:22,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:22,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 32 [2021-02-19 20:27:22,132 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:22,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:22,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:22,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 39 [2021-02-19 20:27:22,147 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:22,412 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-02-19 20:27:22,412 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:22,413 INFO L518 ElimStorePlain]: Eliminatee v_prenex_150 vanished before elimination [2021-02-19 20:27:22,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:22,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:22,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 39 [2021-02-19 20:27:22,434 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:22,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:22,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:22,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 30 [2021-02-19 20:27:22,449 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:22,683 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 44 [2021-02-19 20:27:22,684 INFO L628 ElimStorePlain]: treesize reduction 231, result has 41.4 percent of original size [2021-02-19 20:27:22,684 INFO L518 ElimStorePlain]: Eliminatee v_prenex_151 vanished before elimination [2021-02-19 20:27:22,684 INFO L518 ElimStorePlain]: Eliminatee v_prenex_174 vanished before elimination [2021-02-19 20:27:22,684 INFO L518 ElimStorePlain]: Eliminatee v_prenex_152 vanished before elimination [2021-02-19 20:27:22,684 INFO L518 ElimStorePlain]: Eliminatee v_prenex_175 vanished before elimination [2021-02-19 20:27:22,684 INFO L518 ElimStorePlain]: Eliminatee v_prenex_153 vanished before elimination [2021-02-19 20:27:22,684 INFO L518 ElimStorePlain]: Eliminatee v_prenex_176 vanished before elimination [2021-02-19 20:27:22,684 INFO L518 ElimStorePlain]: Eliminatee v_prenex_154 vanished before elimination [2021-02-19 20:27:22,685 INFO L518 ElimStorePlain]: Eliminatee v_prenex_177 vanished before elimination [2021-02-19 20:27:22,685 INFO L518 ElimStorePlain]: Eliminatee v_prenex_155 vanished before elimination [2021-02-19 20:27:22,685 INFO L518 ElimStorePlain]: Eliminatee v_prenex_156 vanished before elimination [2021-02-19 20:27:22,685 INFO L518 ElimStorePlain]: Eliminatee v_prenex_157 vanished before elimination [2021-02-19 20:27:22,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:22,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:22,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 32 [2021-02-19 20:27:22,694 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:22,770 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:22,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:22,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:22,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 30 [2021-02-19 20:27:22,780 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:22,947 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2021-02-19 20:27:22,948 INFO L628 ElimStorePlain]: treesize reduction 36, result has 68.4 percent of original size [2021-02-19 20:27:22,948 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-02-19 20:27:22,948 INFO L518 ElimStorePlain]: Eliminatee B vanished before elimination [2021-02-19 20:27:22,949 INFO L550 ElimStorePlain]: Start of recursive call 1: 32 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-02-19 20:27:22,949 INFO L247 ElimStorePlain]: Needed 18 recursive calls to eliminate 32 variables, input treesize:2593, output treesize:78 [2021-02-19 20:27:23,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2021-02-19 20:27:23,125 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:23,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2021-02-19 20:27:23,132 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:23,153 INFO L628 ElimStorePlain]: treesize reduction 61, result has 7.6 percent of original size [2021-02-19 20:27:23,153 INFO L518 ElimStorePlain]: Eliminatee v_prenex_178 vanished before elimination [2021-02-19 20:27:23,153 INFO L518 ElimStorePlain]: Eliminatee v_prenex_179 vanished before elimination [2021-02-19 20:27:23,154 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:27:23,154 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:108, output treesize:5 [2021-02-19 20:27:23,175 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:27:23,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:27:23,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-02-19 20:27:23,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110182187] [2021-02-19 20:27:23,175 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-02-19 20:27:23,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:27:23,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-02-19 20:27:23,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2021-02-19 20:27:23,176 INFO L87 Difference]: Start difference. First operand 6135 states and 21934 transitions. Second operand has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 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) [2021-02-19 20:27:23,594 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-02-19 20:27:23,944 WARN L202 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-02-19 20:27:24,649 WARN L202 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2021-02-19 20:27:25,234 WARN L202 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2021-02-19 20:27:25,933 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 54 [2021-02-19 20:27:26,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:27:26,600 INFO L93 Difference]: Finished difference Result 9093 states and 31725 transitions. [2021-02-19 20:27:26,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-19 20:27:26,602 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 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 33 [2021-02-19 20:27:26,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:27:26,621 INFO L225 Difference]: With dead ends: 9093 [2021-02-19 20:27:26,621 INFO L226 Difference]: Without dead ends: 8883 [2021-02-19 20:27:26,621 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=205, Invalid=985, Unknown=0, NotChecked=0, Total=1190 [2021-02-19 20:27:26,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8883 states. [2021-02-19 20:27:26,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8883 to 6225. [2021-02-19 20:27:26,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6225 states, 6224 states have (on average 3.570694087403599) internal successors, (22224), 6224 states have internal predecessors, (22224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:27:26,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6225 states to 6225 states and 22224 transitions. [2021-02-19 20:27:26,743 INFO L78 Accepts]: Start accepts. Automaton has 6225 states and 22224 transitions. Word has length 33 [2021-02-19 20:27:26,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:27:26,743 INFO L480 AbstractCegarLoop]: Abstraction has 6225 states and 22224 transitions. [2021-02-19 20:27:26,743 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 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) [2021-02-19 20:27:26,744 INFO L276 IsEmpty]: Start isEmpty. Operand 6225 states and 22224 transitions. [2021-02-19 20:27:26,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 20:27:26,755 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:27:26,755 INFO L506 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:27:26,964 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable578 [2021-02-19 20:27:26,964 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:27:26,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:27:26,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1989892815, now seen corresponding path program 20 times [2021-02-19 20:27:26,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:27:26,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477382576] [2021-02-19 20:27:26,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:27:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:27:27,476 WARN L202 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 25 [2021-02-19 20:27:27,819 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 30 [2021-02-19 20:27:28,199 WARN L202 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 35 [2021-02-19 20:27:28,457 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 33 [2021-02-19 20:27:28,741 WARN L202 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 29 [2021-02-19 20:27:29,006 WARN L202 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 18 [2021-02-19 20:27:29,058 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:27:29,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477382576] [2021-02-19 20:27:29,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246996183] [2021-02-19 20:27:29,059 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 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 [2021-02-19 20:27:29,082 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 20:27:29,082 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:27:29,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 28 conjunts are in the unsatisfiable core [2021-02-19 20:27:29,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:27:29,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:27:29,393 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:29,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:27:29,404 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:29,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:27:29,417 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:29,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:27:29,428 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:29,587 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-02-19 20:27:29,587 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:29,589 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-02-19 20:27:29,590 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:269, output treesize:265 [2021-02-19 20:27:29,800 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-02-19 20:27:29,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:29,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:27:29,839 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:30,014 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-02-19 20:27:30,015 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:30,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:30,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:27:30,032 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:30,211 WARN L202 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-02-19 20:27:30,212 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:30,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:30,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:27:30,231 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:30,396 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-02-19 20:27:30,397 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:30,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:30,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:27:30,409 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:30,593 WARN L202 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-02-19 20:27:30,593 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:30,596 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-02-19 20:27:30,596 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:301, output treesize:297 [2021-02-19 20:27:30,840 WARN L202 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-02-19 20:27:31,496 WARN L202 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2021-02-19 20:27:31,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:31,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2021-02-19 20:27:31,566 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:31,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:31,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2021-02-19 20:27:31,582 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:32,377 WARN L202 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2021-02-19 20:27:32,378 INFO L628 ElimStorePlain]: treesize reduction 129, result has 84.1 percent of original size [2021-02-19 20:27:32,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:32,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26 [2021-02-19 20:27:32,394 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:32,774 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-02-19 20:27:32,775 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:32,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:32,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26 [2021-02-19 20:27:32,789 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:32,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:32,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2021-02-19 20:27:32,801 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:33,424 WARN L202 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-02-19 20:27:33,425 INFO L628 ElimStorePlain]: treesize reduction 65, result has 89.4 percent of original size [2021-02-19 20:27:33,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:33,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26 [2021-02-19 20:27:33,442 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:33,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:33,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2021-02-19 20:27:33,455 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:33,763 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-02-19 20:27:33,764 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:33,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:33,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2021-02-19 20:27:33,775 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:34,059 WARN L202 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-02-19 20:27:34,060 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:34,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:34,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2021-02-19 20:27:34,072 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:34,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:34,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2021-02-19 20:27:34,084 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:34,344 WARN L202 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-02-19 20:27:34,345 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:34,347 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-1 vars, End of recursive call: and 10 xjuncts. [2021-02-19 20:27:34,347 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 6 variables, input treesize:859, output treesize:423 [2021-02-19 20:27:34,681 WARN L202 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-02-19 20:27:35,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2021-02-19 20:27:35,793 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:35,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2021-02-19 20:27:35,823 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:35,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2021-02-19 20:27:35,851 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:35,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2021-02-19 20:27:35,869 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:37,744 WARN L202 SmtUtils]: Spent 1.88 s on a formula simplification that was a NOOP. DAG size: 246 [2021-02-19 20:27:37,745 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:37,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2021-02-19 20:27:37,773 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:37,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-02-19 20:27:37,790 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:39,712 WARN L202 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 234 DAG size of output: 177 [2021-02-19 20:27:39,713 INFO L628 ElimStorePlain]: treesize reduction 708, result has 56.5 percent of original size [2021-02-19 20:27:39,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2021-02-19 20:27:39,728 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:40,545 WARN L202 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2021-02-19 20:27:40,546 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:40,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-02-19 20:27:40,561 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:40,888 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 5 [2021-02-19 20:27:40,889 INFO L628 ElimStorePlain]: treesize reduction 870, result has 0.6 percent of original size [2021-02-19 20:27:40,889 INFO L518 ElimStorePlain]: Eliminatee v_prenex_194 vanished before elimination [2021-02-19 20:27:40,889 INFO L518 ElimStorePlain]: Eliminatee v_prenex_195 vanished before elimination [2021-02-19 20:27:40,889 INFO L518 ElimStorePlain]: Eliminatee v_prenex_196 vanished before elimination [2021-02-19 20:27:40,889 INFO L518 ElimStorePlain]: Eliminatee v_prenex_197 vanished before elimination [2021-02-19 20:27:40,890 INFO L518 ElimStorePlain]: Eliminatee v_prenex_198 vanished before elimination [2021-02-19 20:27:40,890 INFO L518 ElimStorePlain]: Eliminatee v_prenex_199 vanished before elimination [2021-02-19 20:27:40,890 INFO L518 ElimStorePlain]: Eliminatee v_prenex_188 vanished before elimination [2021-02-19 20:27:40,890 INFO L518 ElimStorePlain]: Eliminatee v_prenex_200 vanished before elimination [2021-02-19 20:27:40,890 INFO L518 ElimStorePlain]: Eliminatee v_prenex_189 vanished before elimination [2021-02-19 20:27:40,890 INFO L518 ElimStorePlain]: Eliminatee v_prenex_201 vanished before elimination [2021-02-19 20:27:40,890 INFO L518 ElimStorePlain]: Eliminatee v_prenex_202 vanished before elimination [2021-02-19 20:27:40,890 INFO L518 ElimStorePlain]: Eliminatee v_prenex_203 vanished before elimination [2021-02-19 20:27:40,890 INFO L518 ElimStorePlain]: Eliminatee v_prenex_204 vanished before elimination [2021-02-19 20:27:40,890 INFO L518 ElimStorePlain]: Eliminatee v_prenex_205 vanished before elimination [2021-02-19 20:27:40,890 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-02-19 20:27:40,890 INFO L518 ElimStorePlain]: Eliminatee B vanished before elimination [2021-02-19 20:27:40,891 INFO L550 ElimStorePlain]: Start of recursive call 1: 20 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:27:40,892 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 20 variables, input treesize:1801, output treesize:5 [2021-02-19 20:27:40,928 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:27:40,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:27:40,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-02-19 20:27:40,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883682249] [2021-02-19 20:27:40,928 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-02-19 20:27:40,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:27:40,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-02-19 20:27:40,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2021-02-19 20:27:40,929 INFO L87 Difference]: Start difference. First operand 6225 states and 22224 transitions. Second operand has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 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) [2021-02-19 20:27:41,328 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2021-02-19 20:27:42,060 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2021-02-19 20:27:42,784 WARN L202 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 51 [2021-02-19 20:27:43,440 WARN L202 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 54 [2021-02-19 20:27:44,135 WARN L202 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2021-02-19 20:27:45,062 WARN L202 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2021-02-19 20:27:45,857 WARN L202 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2021-02-19 20:27:46,224 WARN L202 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-02-19 20:27:46,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:27:46,319 INFO L93 Difference]: Finished difference Result 8764 states and 30577 transitions. [2021-02-19 20:27:46,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-19 20:27:46,321 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 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 33 [2021-02-19 20:27:46,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:27:46,339 INFO L225 Difference]: With dead ends: 8764 [2021-02-19 20:27:46,339 INFO L226 Difference]: Without dead ends: 8632 [2021-02-19 20:27:46,340 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=233, Invalid=957, Unknown=0, NotChecked=0, Total=1190 [2021-02-19 20:27:46,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8632 states. [2021-02-19 20:27:46,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8632 to 6218. [2021-02-19 20:27:46,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6218 states, 6217 states have (on average 3.5710149589834326) internal successors, (22201), 6217 states have internal predecessors, (22201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:27:46,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6218 states to 6218 states and 22201 transitions. [2021-02-19 20:27:46,482 INFO L78 Accepts]: Start accepts. Automaton has 6218 states and 22201 transitions. Word has length 33 [2021-02-19 20:27:46,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:27:46,482 INFO L480 AbstractCegarLoop]: Abstraction has 6218 states and 22201 transitions. [2021-02-19 20:27:46,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 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) [2021-02-19 20:27:46,482 INFO L276 IsEmpty]: Start isEmpty. Operand 6218 states and 22201 transitions. [2021-02-19 20:27:46,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 20:27:46,491 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:27:46,491 INFO L506 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:27:46,692 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable832 [2021-02-19 20:27:46,692 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:27:46,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:27:46,692 INFO L82 PathProgramCache]: Analyzing trace with hash -346836115, now seen corresponding path program 21 times [2021-02-19 20:27:46,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:27:46,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161530406] [2021-02-19 20:27:46,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:27:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:27:47,127 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 39 [2021-02-19 20:27:47,313 WARN L202 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 45 [2021-02-19 20:27:47,531 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2021-02-19 20:27:47,762 WARN L202 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 50 [2021-02-19 20:27:48,171 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:27:48,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161530406] [2021-02-19 20:27:48,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127273427] [2021-02-19 20:27:48,171 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 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 [2021-02-19 20:27:48,197 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-02-19 20:27:48,197 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:27:48,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 31 conjunts are in the unsatisfiable core [2021-02-19 20:27:48,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:27:48,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:27:48,695 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:48,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:27:48,707 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:48,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:27:48,719 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:48,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:27:48,732 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:48,941 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-02-19 20:27:48,942 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:48,944 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-02-19 20:27:48,944 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:289, output treesize:285 [2021-02-19 20:27:49,222 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-02-19 20:27:49,753 WARN L202 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2021-02-19 20:27:49,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:49,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:27:49,813 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:49,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:49,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:27:49,832 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:50,574 WARN L202 SmtUtils]: Spent 742.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2021-02-19 20:27:50,576 INFO L628 ElimStorePlain]: treesize reduction 158, result has 75.0 percent of original size [2021-02-19 20:27:50,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:50,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:27:50,597 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:50,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:50,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:27:50,616 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:50,928 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-02-19 20:27:50,928 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:50,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:50,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:27:50,947 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:51,306 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-02-19 20:27:51,307 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:51,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:51,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:27:51,324 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:51,643 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2021-02-19 20:27:51,644 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:51,646 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 6 xjuncts. [2021-02-19 20:27:51,647 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:633, output treesize:475 [2021-02-19 20:27:52,026 WARN L202 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2021-02-19 20:27:52,458 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-02-19 20:27:52,898 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-02-19 20:27:53,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:53,184 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:53,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 44 [2021-02-19 20:27:53,194 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-02-19 20:27:53,203 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:27:53,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:53,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 36 [2021-02-19 20:27:53,217 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:54,412 WARN L202 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2021-02-19 20:27:54,413 INFO L628 ElimStorePlain]: treesize reduction 187, result has 82.9 percent of original size [2021-02-19 20:27:54,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:54,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2021-02-19 20:27:54,429 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:55,126 WARN L202 SmtUtils]: Spent 696.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-02-19 20:27:55,127 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:55,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:55,170 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:55,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 44 [2021-02-19 20:27:55,180 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2021-02-19 20:27:55,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:55,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26 [2021-02-19 20:27:55,195 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:56,637 WARN L202 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2021-02-19 20:27:56,638 INFO L628 ElimStorePlain]: treesize reduction 34, result has 96.2 percent of original size [2021-02-19 20:27:56,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:56,694 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:56,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 44 [2021-02-19 20:27:56,705 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2021-02-19 20:27:56,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:56,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2021-02-19 20:27:56,722 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:58,082 WARN L202 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2021-02-19 20:27:58,083 INFO L628 ElimStorePlain]: treesize reduction 34, result has 96.0 percent of original size [2021-02-19 20:27:58,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:58,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2021-02-19 20:27:58,101 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 20:27:58,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:58,143 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:27:58,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 44 [2021-02-19 20:27:58,154 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2021-02-19 20:27:59,279 WARN L202 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2021-02-19 20:27:59,280 INFO L628 ElimStorePlain]: treesize reduction 103, result has 87.4 percent of original size [2021-02-19 20:27:59,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:27:59,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26 [2021-02-19 20:27:59,295 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:00,375 WARN L202 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2021-02-19 20:28:00,376 INFO L628 ElimStorePlain]: treesize reduction 14, result has 98.0 percent of original size [2021-02-19 20:28:00,385 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 6 dim-1 vars, End of recursive call: and 10 xjuncts. [2021-02-19 20:28:00,385 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 7 variables, input treesize:1087, output treesize:749 [2021-02-19 20:28:01,429 WARN L202 SmtUtils]: Spent 952.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2021-02-19 20:28:01,908 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-02-19 20:28:03,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2021-02-19 20:28:03,427 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:03,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2021-02-19 20:28:03,452 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:05,587 WARN L202 SmtUtils]: Spent 2.13 s on a formula simplification that was a NOOP. DAG size: 400 [2021-02-19 20:28:05,588 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:28:05,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-02-19 20:28:05,627 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:05,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2021-02-19 20:28:05,665 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:08,005 WARN L202 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 389 DAG size of output: 237 [2021-02-19 20:28:08,006 INFO L628 ElimStorePlain]: treesize reduction 822, result has 53.2 percent of original size [2021-02-19 20:28:08,006 INFO L518 ElimStorePlain]: Eliminatee v_prenex_220 vanished before elimination [2021-02-19 20:28:08,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2021-02-19 20:28:08,031 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:08,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2021-02-19 20:28:08,050 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:08,952 WARN L202 SmtUtils]: Spent 901.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2021-02-19 20:28:08,953 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:28:08,954 INFO L518 ElimStorePlain]: Eliminatee v_prenex_221 vanished before elimination [2021-02-19 20:28:08,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-02-19 20:28:08,984 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:08,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2021-02-19 20:28:09,003 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:09,281 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 5 [2021-02-19 20:28:09,282 INFO L628 ElimStorePlain]: treesize reduction 844, result has 0.6 percent of original size [2021-02-19 20:28:09,282 INFO L518 ElimStorePlain]: Eliminatee v_prenex_222 vanished before elimination [2021-02-19 20:28:09,282 INFO L518 ElimStorePlain]: Eliminatee v_prenex_244 vanished before elimination [2021-02-19 20:28:09,283 INFO L518 ElimStorePlain]: Eliminatee v_prenex_223 vanished before elimination [2021-02-19 20:28:09,283 INFO L518 ElimStorePlain]: Eliminatee v_prenex_245 vanished before elimination [2021-02-19 20:28:09,283 INFO L518 ElimStorePlain]: Eliminatee v_prenex_224 vanished before elimination [2021-02-19 20:28:09,283 INFO L518 ElimStorePlain]: Eliminatee v_prenex_246 vanished before elimination [2021-02-19 20:28:09,283 INFO L518 ElimStorePlain]: Eliminatee v_prenex_225 vanished before elimination [2021-02-19 20:28:09,283 INFO L518 ElimStorePlain]: Eliminatee v_prenex_247 vanished before elimination [2021-02-19 20:28:09,283 INFO L518 ElimStorePlain]: Eliminatee v_prenex_226 vanished before elimination [2021-02-19 20:28:09,283 INFO L518 ElimStorePlain]: Eliminatee v_prenex_248 vanished before elimination [2021-02-19 20:28:09,283 INFO L518 ElimStorePlain]: Eliminatee v_prenex_227 vanished before elimination [2021-02-19 20:28:09,283 INFO L518 ElimStorePlain]: Eliminatee v_prenex_249 vanished before elimination [2021-02-19 20:28:09,283 INFO L518 ElimStorePlain]: Eliminatee v_prenex_239 vanished before elimination [2021-02-19 20:28:09,283 INFO L518 ElimStorePlain]: Eliminatee v_prenex_217 vanished before elimination [2021-02-19 20:28:09,283 INFO L518 ElimStorePlain]: Eliminatee v_prenex_218 vanished before elimination [2021-02-19 20:28:09,283 INFO L518 ElimStorePlain]: Eliminatee v_prenex_219 vanished before elimination [2021-02-19 20:28:09,283 INFO L518 ElimStorePlain]: Eliminatee v_prenex_250 vanished before elimination [2021-02-19 20:28:09,283 INFO L518 ElimStorePlain]: Eliminatee v_prenex_251 vanished before elimination [2021-02-19 20:28:09,283 INFO L518 ElimStorePlain]: Eliminatee v_prenex_230 vanished before elimination [2021-02-19 20:28:09,283 INFO L518 ElimStorePlain]: Eliminatee v_prenex_231 vanished before elimination [2021-02-19 20:28:09,283 INFO L518 ElimStorePlain]: Eliminatee v_prenex_232 vanished before elimination [2021-02-19 20:28:09,283 INFO L518 ElimStorePlain]: Eliminatee v_prenex_233 vanished before elimination [2021-02-19 20:28:09,283 INFO L518 ElimStorePlain]: Eliminatee v_prenex_234 vanished before elimination [2021-02-19 20:28:09,283 INFO L518 ElimStorePlain]: Eliminatee v_prenex_235 vanished before elimination [2021-02-19 20:28:09,284 INFO L518 ElimStorePlain]: Eliminatee v_prenex_236 vanished before elimination [2021-02-19 20:28:09,284 INFO L518 ElimStorePlain]: Eliminatee v_prenex_214 vanished before elimination [2021-02-19 20:28:09,284 INFO L518 ElimStorePlain]: Eliminatee v_prenex_237 vanished before elimination [2021-02-19 20:28:09,284 INFO L518 ElimStorePlain]: Eliminatee v_prenex_215 vanished before elimination [2021-02-19 20:28:09,284 INFO L518 ElimStorePlain]: Eliminatee v_prenex_238 vanished before elimination [2021-02-19 20:28:09,284 INFO L518 ElimStorePlain]: Eliminatee v_prenex_216 vanished before elimination [2021-02-19 20:28:09,284 INFO L518 ElimStorePlain]: Eliminatee v_prenex_228 vanished before elimination [2021-02-19 20:28:09,284 INFO L518 ElimStorePlain]: Eliminatee v_prenex_229 vanished before elimination [2021-02-19 20:28:09,284 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-02-19 20:28:09,284 INFO L518 ElimStorePlain]: Eliminatee B vanished before elimination [2021-02-19 20:28:09,286 INFO L550 ElimStorePlain]: Start of recursive call 1: 40 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:28:09,286 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 40 variables, input treesize:1841, output treesize:5 [2021-02-19 20:28:09,327 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:28:09,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:28:09,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2021-02-19 20:28:09,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079266493] [2021-02-19 20:28:09,327 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-02-19 20:28:09,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:28:09,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-02-19 20:28:09,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=620, Unknown=0, NotChecked=0, Total=756 [2021-02-19 20:28:09,328 INFO L87 Difference]: Start difference. First operand 6218 states and 22201 transitions. Second operand has 28 states, 28 states have (on average 2.0714285714285716) internal successors, (58), 27 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) [2021-02-19 20:28:09,781 WARN L202 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 34 [2021-02-19 20:28:10,123 WARN L202 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 36 [2021-02-19 20:28:11,565 WARN L202 SmtUtils]: Spent 957.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-02-19 20:28:12,245 WARN L202 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 48 [2021-02-19 20:28:13,445 WARN L202 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2021-02-19 20:28:14,616 WARN L202 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2021-02-19 20:28:15,243 WARN L202 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2021-02-19 20:28:16,477 WARN L202 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-02-19 20:28:17,133 WARN L202 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-02-19 20:28:17,811 WARN L202 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2021-02-19 20:28:18,908 WARN L202 SmtUtils]: Spent 833.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-02-19 20:28:20,620 WARN L202 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-02-19 20:28:20,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:28:20,674 INFO L93 Difference]: Finished difference Result 7905 states and 27674 transitions. [2021-02-19 20:28:20,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-02-19 20:28:20,676 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.0714285714285716) internal successors, (58), 27 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 33 [2021-02-19 20:28:20,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:28:20,692 INFO L225 Difference]: With dead ends: 7905 [2021-02-19 20:28:20,692 INFO L226 Difference]: Without dead ends: 7774 [2021-02-19 20:28:20,693 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=304, Invalid=1418, Unknown=0, NotChecked=0, Total=1722 [2021-02-19 20:28:20,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7774 states. [2021-02-19 20:28:20,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7774 to 6202. [2021-02-19 20:28:20,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6202 states, 6201 states have (on average 3.5734558942106114) internal successors, (22159), 6201 states have internal predecessors, (22159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:28:20,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6202 states to 6202 states and 22159 transitions. [2021-02-19 20:28:20,811 INFO L78 Accepts]: Start accepts. Automaton has 6202 states and 22159 transitions. Word has length 33 [2021-02-19 20:28:20,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:28:20,812 INFO L480 AbstractCegarLoop]: Abstraction has 6202 states and 22159 transitions. [2021-02-19 20:28:20,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.0714285714285716) internal successors, (58), 27 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) [2021-02-19 20:28:20,812 INFO L276 IsEmpty]: Start isEmpty. Operand 6202 states and 22159 transitions. [2021-02-19 20:28:20,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 20:28:20,821 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:28:20,821 INFO L506 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:28:21,024 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable965 [2021-02-19 20:28:21,024 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:28:21,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:28:21,024 INFO L82 PathProgramCache]: Analyzing trace with hash -874818997, now seen corresponding path program 22 times [2021-02-19 20:28:21,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:28:21,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637344428] [2021-02-19 20:28:21,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:28:21,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:28:21,747 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 49 [2021-02-19 20:28:22,126 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2021-02-19 20:28:22,630 WARN L202 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 44 [2021-02-19 20:28:22,951 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 34 [2021-02-19 20:28:23,170 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:28:23,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637344428] [2021-02-19 20:28:23,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252774902] [2021-02-19 20:28:23,171 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 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 [2021-02-19 20:28:23,195 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 20:28:23,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:28:23,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 28 conjunts are in the unsatisfiable core [2021-02-19 20:28:23,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:28:23,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:28:23,510 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:23,541 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:28:23,543 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:28:23,543 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:48 [2021-02-19 20:28:24,159 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-02-19 20:28:25,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2021-02-19 20:28:25,040 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:25,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-02-19 20:28:25,065 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:25,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-02-19 20:28:25,093 INFO L550 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:25,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2021-02-19 20:28:25,122 INFO L550 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:25,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-02-19 20:28:25,147 INFO L550 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:25,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2021-02-19 20:28:25,186 INFO L550 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:25,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2021-02-19 20:28:25,217 INFO L550 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:25,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-02-19 20:28:25,265 INFO L550 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:25,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-02-19 20:28:25,298 INFO L550 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:25,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-02-19 20:28:25,330 INFO L550 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:25,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-02-19 20:28:25,368 INFO L550 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:25,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-02-19 20:28:25,403 INFO L550 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:25,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-02-19 20:28:25,436 INFO L550 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:25,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-02-19 20:28:25,475 INFO L550 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:25,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-02-19 20:28:25,525 INFO L550 ElimStorePlain]: Start of recursive call 16: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:25,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-02-19 20:28:25,547 INFO L550 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:27,440 WARN L202 SmtUtils]: Spent 1.89 s on a formula simplification that was a NOOP. DAG size: 153 [2021-02-19 20:28:27,441 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:28:27,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 34 [2021-02-19 20:28:27,489 INFO L550 ElimStorePlain]: Start of recursive call 18: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:27,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 30 [2021-02-19 20:28:27,532 INFO L550 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:27,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 30 [2021-02-19 20:28:27,582 INFO L550 ElimStorePlain]: Start of recursive call 20: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:27,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 34 [2021-02-19 20:28:27,621 INFO L550 ElimStorePlain]: Start of recursive call 21: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:27,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 34 [2021-02-19 20:28:27,658 INFO L550 ElimStorePlain]: Start of recursive call 22: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:27,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 34 [2021-02-19 20:28:27,697 INFO L550 ElimStorePlain]: Start of recursive call 23: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:27,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2021-02-19 20:28:27,737 INFO L550 ElimStorePlain]: Start of recursive call 24: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:27,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2021-02-19 20:28:27,772 INFO L550 ElimStorePlain]: Start of recursive call 25: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:27,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2021-02-19 20:28:27,812 INFO L550 ElimStorePlain]: Start of recursive call 26: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:27,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 30 [2021-02-19 20:28:27,847 INFO L550 ElimStorePlain]: Start of recursive call 27: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:27,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2021-02-19 20:28:27,886 INFO L550 ElimStorePlain]: Start of recursive call 28: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:27,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 30 [2021-02-19 20:28:27,926 INFO L550 ElimStorePlain]: Start of recursive call 29: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:27,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2021-02-19 20:28:27,963 INFO L550 ElimStorePlain]: Start of recursive call 30: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:27,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 30 [2021-02-19 20:28:27,999 INFO L550 ElimStorePlain]: Start of recursive call 31: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:28,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 30 [2021-02-19 20:28:28,034 INFO L550 ElimStorePlain]: Start of recursive call 32: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:28,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2021-02-19 20:28:28,059 INFO L550 ElimStorePlain]: Start of recursive call 33: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 20:28:30,551 WARN L202 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2021-02-19 20:28:30,553 INFO L628 ElimStorePlain]: treesize reduction 20, result has 96.1 percent of original size [2021-02-19 20:28:30,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-02-19 20:28:30,587 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:30,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2021-02-19 20:28:30,620 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:30,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-02-19 20:28:30,658 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:30,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-02-19 20:28:30,693 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:30,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-02-19 20:28:30,728 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:30,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2021-02-19 20:28:30,762 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:30,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-02-19 20:28:30,797 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:30,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2021-02-19 20:28:30,832 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:30,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2021-02-19 20:28:30,865 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:30,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-02-19 20:28:30,901 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:30,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-02-19 20:28:30,942 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:30,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-02-19 20:28:30,981 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:31,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-02-19 20:28:31,016 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:31,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-02-19 20:28:31,055 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:31,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-02-19 20:28:31,089 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:31,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-02-19 20:28:31,120 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:31,724 WARN L202 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-19 20:28:31,726 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:28:31,741 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 10 xjuncts. [2021-02-19 20:28:31,741 INFO L247 ElimStorePlain]: Needed 49 recursive calls to eliminate 3 variables, input treesize:1137, output treesize:243 [2021-02-19 20:28:32,103 WARN L202 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 25 [2021-02-19 20:28:32,554 WARN L202 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2021-02-19 20:28:32,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-02-19 20:28:32,684 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:32,740 INFO L628 ElimStorePlain]: treesize reduction 108, result has 4.4 percent of original size [2021-02-19 20:28:32,740 INFO L518 ElimStorePlain]: Eliminatee v_prenex_252 vanished before elimination [2021-02-19 20:28:32,740 INFO L518 ElimStorePlain]: Eliminatee v_prenex_253 vanished before elimination [2021-02-19 20:28:32,740 INFO L518 ElimStorePlain]: Eliminatee v_prenex_254 vanished before elimination [2021-02-19 20:28:32,742 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:28:32,742 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:128, output treesize:5 [2021-02-19 20:28:32,774 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:28:32,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:28:32,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-02-19 20:28:32,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854579670] [2021-02-19 20:28:32,775 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-02-19 20:28:32,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:28:32,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-02-19 20:28:32,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2021-02-19 20:28:32,775 INFO L87 Difference]: Start difference. First operand 6202 states and 22159 transitions. Second operand has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 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) [2021-02-19 20:28:33,575 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 37 [2021-02-19 20:28:34,027 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2021-02-19 20:28:34,675 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-02-19 20:28:35,429 WARN L202 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-02-19 20:28:36,446 WARN L202 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 29 [2021-02-19 20:28:37,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:28:37,456 INFO L93 Difference]: Finished difference Result 8633 states and 30105 transitions. [2021-02-19 20:28:37,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 20:28:37,457 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 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 33 [2021-02-19 20:28:37,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:28:37,475 INFO L225 Difference]: With dead ends: 8633 [2021-02-19 20:28:37,475 INFO L226 Difference]: Without dead ends: 8590 [2021-02-19 20:28:37,476 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=188, Invalid=934, Unknown=0, NotChecked=0, Total=1122 [2021-02-19 20:28:37,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8590 states. [2021-02-19 20:28:37,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8590 to 6280. [2021-02-19 20:28:37,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6280 states, 6279 states have (on average 3.568561872909699) internal successors, (22407), 6279 states have internal predecessors, (22407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:28:37,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6280 states to 6280 states and 22407 transitions. [2021-02-19 20:28:37,593 INFO L78 Accepts]: Start accepts. Automaton has 6280 states and 22407 transitions. Word has length 33 [2021-02-19 20:28:37,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:28:37,593 INFO L480 AbstractCegarLoop]: Abstraction has 6280 states and 22407 transitions. [2021-02-19 20:28:37,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 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) [2021-02-19 20:28:37,593 INFO L276 IsEmpty]: Start isEmpty. Operand 6280 states and 22407 transitions. [2021-02-19 20:28:37,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 20:28:37,602 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:28:37,602 INFO L506 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:28:37,802 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1136 [2021-02-19 20:28:37,802 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:28:37,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:28:37,803 INFO L82 PathProgramCache]: Analyzing trace with hash 321493445, now seen corresponding path program 23 times [2021-02-19 20:28:37,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:28:37,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125885061] [2021-02-19 20:28:37,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:28:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:28:38,410 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 44 [2021-02-19 20:28:38,676 WARN L202 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 23 [2021-02-19 20:28:38,997 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 30 [2021-02-19 20:28:39,309 WARN L202 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 27 [2021-02-19 20:28:39,518 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 21 [2021-02-19 20:28:39,687 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:28:39,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125885061] [2021-02-19 20:28:39,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666910191] [2021-02-19 20:28:39,688 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 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 [2021-02-19 20:28:39,713 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-02-19 20:28:39,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:28:39,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 23 conjunts are in the unsatisfiable core [2021-02-19 20:28:39,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:28:39,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:28:39,991 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:40,028 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:28:40,030 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:28:40,031 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:48 [2021-02-19 20:28:40,591 WARN L202 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-02-19 20:28:40,938 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-02-19 20:28:41,386 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2021-02-19 20:28:43,456 INFO L446 ElimStorePlain]: Different costs {3=[v_C_32], 10=[A, B]} [2021-02-19 20:28:43,477 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:43,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:43,482 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:43,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:28:43,501 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:43,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:43,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:28:43,544 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:43,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:43,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:28:43,590 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:43,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:43,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:28:43,624 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:43,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:43,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:28:43,656 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:43,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:43,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:28:43,694 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:43,709 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:43,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:43,713 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:43,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:28:43,732 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:43,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:43,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:28:43,758 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:43,773 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:43,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:43,778 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:43,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:28:43,799 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:43,813 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:43,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:43,817 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:43,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:28:43,840 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:43,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:43,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:28:43,870 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:43,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:43,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:28:43,928 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:43,948 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:43,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:43,953 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:43,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:28:43,973 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:43,989 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:43,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:43,994 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:44,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:28:44,011 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:44,030 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:44,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:44,035 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:44,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:28:44,051 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:44,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:44,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:28:44,091 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:44,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:44,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:28:44,126 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:44,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:44,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:28:44,163 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:44,182 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:44,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:44,187 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:44,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:28:44,203 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:44,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:44,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:28:44,249 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:44,268 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:44,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:44,273 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:44,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:28:44,294 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:44,306 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:44,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:44,313 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:44,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:28:44,333 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:44,349 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:44,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:44,355 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:44,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:28:44,373 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:44,387 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:44,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:44,391 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:44,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:28:44,405 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:44,421 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:44,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:44,426 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:44,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:28:44,439 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:44,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:44,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:28:44,471 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:44,485 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:44,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:44,489 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:44,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:28:44,502 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:44,517 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:44,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:44,520 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:44,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:28:44,536 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:44,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:44,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:28:44,567 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:44,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:44,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:28:44,596 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:44,612 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:44,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:44,615 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:44,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 20:28:44,628 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:44,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:44,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:28:44,653 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:47,665 WARN L202 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2021-02-19 20:28:47,666 INFO L628 ElimStorePlain]: treesize reduction 700, result has 74.9 percent of original size [2021-02-19 20:28:47,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:47,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:47,689 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:47,695 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:47,704 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:47,707 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:47,744 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:28:47,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 50 [2021-02-19 20:28:47,767 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:47,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:47,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:47,786 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:47,790 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:47,802 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:47,806 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:47,847 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:28:47,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 59 treesize of output 57 [2021-02-19 20:28:47,858 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:47,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:47,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:47,878 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:47,881 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:47,891 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:47,895 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:47,933 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:28:47,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 63 treesize of output 59 [2021-02-19 20:28:47,945 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:47,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:47,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:47,966 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:47,970 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:47,982 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:47,986 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,021 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:28:48,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 50 [2021-02-19 20:28:48,029 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:48,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:48,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:48,050 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,055 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,068 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,074 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,121 INFO L354 Elim1Store]: treesize reduction 11, result has 42.1 percent of original size [2021-02-19 20:28:48,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 63 treesize of output 49 [2021-02-19 20:28:48,130 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:48,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:48,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:48,151 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,157 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,173 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,177 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,223 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:28:48,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 50 [2021-02-19 20:28:48,237 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:48,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:48,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:48,260 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,264 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,279 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,285 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,354 INFO L354 Elim1Store]: treesize reduction 4, result has 78.9 percent of original size [2021-02-19 20:28:48,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 55 treesize of output 53 [2021-02-19 20:28:48,362 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:48,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:48,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:48,384 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,389 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,403 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,409 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,441 INFO L354 Elim1Store]: treesize reduction 16, result has 15.8 percent of original size [2021-02-19 20:28:48,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 46 treesize of output 35 [2021-02-19 20:28:48,445 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:48,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:48,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:48,467 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,472 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,485 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,492 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,558 INFO L354 Elim1Store]: treesize reduction 4, result has 78.9 percent of original size [2021-02-19 20:28:48,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 59 treesize of output 53 [2021-02-19 20:28:48,565 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:48,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:48,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:48,590 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,596 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,608 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,613 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,660 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:28:48,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 50 [2021-02-19 20:28:48,675 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:48,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:48,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:48,696 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,702 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,713 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,718 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,786 INFO L354 Elim1Store]: treesize reduction 4, result has 78.9 percent of original size [2021-02-19 20:28:48,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 55 treesize of output 53 [2021-02-19 20:28:48,795 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:48,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:48,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:48,817 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,823 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,836 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,842 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,889 INFO L354 Elim1Store]: treesize reduction 11, result has 42.1 percent of original size [2021-02-19 20:28:48,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 59 treesize of output 47 [2021-02-19 20:28:48,897 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:48,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:48,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:48,920 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,925 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,941 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:48,946 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,016 INFO L354 Elim1Store]: treesize reduction 4, result has 78.9 percent of original size [2021-02-19 20:28:49,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 59 treesize of output 53 [2021-02-19 20:28:49,024 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:49,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:49,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:49,050 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,055 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,069 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,075 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,112 INFO L354 Elim1Store]: treesize reduction 16, result has 15.8 percent of original size [2021-02-19 20:28:49,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 35 [2021-02-19 20:28:49,117 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:49,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:49,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:49,142 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,149 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,165 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,172 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,187 INFO L354 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2021-02-19 20:28:49,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 32 [2021-02-19 20:28:49,191 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:49,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:49,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:49,217 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,223 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,235 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,239 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,257 INFO L354 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2021-02-19 20:28:49,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 63 treesize of output 41 [2021-02-19 20:28:49,261 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:49,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:49,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:49,284 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,290 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,303 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,310 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,360 INFO L354 Elim1Store]: treesize reduction 11, result has 42.1 percent of original size [2021-02-19 20:28:49,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 61 treesize of output 47 [2021-02-19 20:28:49,369 INFO L550 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:49,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:49,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:49,394 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,400 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,413 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,419 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,477 INFO L354 Elim1Store]: treesize reduction 8, result has 57.9 percent of original size [2021-02-19 20:28:49,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 55 treesize of output 49 [2021-02-19 20:28:49,493 INFO L550 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:49,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:49,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:49,522 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,529 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,544 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,551 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,649 INFO L354 Elim1Store]: treesize reduction 8, result has 57.9 percent of original size [2021-02-19 20:28:49,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 55 treesize of output 49 [2021-02-19 20:28:49,653 INFO L550 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:49,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:49,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:49,670 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,677 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,694 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,699 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,751 INFO L354 Elim1Store]: treesize reduction 11, result has 42.1 percent of original size [2021-02-19 20:28:49,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 61 treesize of output 47 [2021-02-19 20:28:49,758 INFO L550 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:49,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:49,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:49,774 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,779 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,793 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,799 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,843 INFO L354 Elim1Store]: treesize reduction 11, result has 42.1 percent of original size [2021-02-19 20:28:49,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 40 [2021-02-19 20:28:49,852 INFO L550 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:49,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:49,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:49,866 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,871 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,884 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,888 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,950 INFO L354 Elim1Store]: treesize reduction 4, result has 78.9 percent of original size [2021-02-19 20:28:49,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 59 treesize of output 53 [2021-02-19 20:28:49,959 INFO L550 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:49,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:49,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:49,977 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,980 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,993 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:49,999 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:50,048 INFO L354 Elim1Store]: treesize reduction 11, result has 42.1 percent of original size [2021-02-19 20:28:50,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 59 treesize of output 47 [2021-02-19 20:28:50,057 INFO L550 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:50,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:50,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:50,071 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:50,075 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:50,088 INFO L354 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2021-02-19 20:28:50,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 59 treesize of output 41 [2021-02-19 20:28:50,094 INFO L550 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:52,264 WARN L202 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2021-02-19 20:28:52,264 INFO L628 ElimStorePlain]: treesize reduction 767, result has 63.6 percent of original size [2021-02-19 20:28:52,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:52,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:52,282 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,284 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:52,297 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,302 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 31 [2021-02-19 20:28:52,314 INFO L550 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:52,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:52,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:52,330 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,336 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,353 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,359 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,403 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:28:52,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 48 [2021-02-19 20:28:52,423 INFO L550 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:52,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:52,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:52,447 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,448 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,469 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,470 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,516 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:28:52,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 96 treesize of output 84 [2021-02-19 20:28:52,557 INFO L550 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 4 xjuncts. [2021-02-19 20:28:52,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:52,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:52,579 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,584 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,594 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,598 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,665 INFO L354 Elim1Store]: treesize reduction 4, result has 78.9 percent of original size [2021-02-19 20:28:52,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 106 treesize of output 84 [2021-02-19 20:28:52,689 INFO L550 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:52,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:52,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:52,711 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,713 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,733 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,735 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,770 INFO L354 Elim1Store]: treesize reduction 16, result has 15.8 percent of original size [2021-02-19 20:28:52,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 44 treesize of output 29 [2021-02-19 20:28:52,773 INFO L550 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:52,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:52,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:52,806 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,807 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,824 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,825 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,847 INFO L354 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2021-02-19 20:28:52,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 100 treesize of output 1 [2021-02-19 20:28:52,852 INFO L550 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:52,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:52,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:52,872 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,873 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:52,893 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,894 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,912 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-02-19 20:28:52,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 70 treesize of output 1 [2021-02-19 20:28:52,915 INFO L550 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:52,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:52,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:52,934 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,936 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:52,954 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,955 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:52,969 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-02-19 20:28:52,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 70 treesize of output 46 [2021-02-19 20:28:52,982 INFO L550 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 2 xjuncts. [2021-02-19 20:28:52,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:52,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:53,000 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,005 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,018 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,023 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,037 INFO L354 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2021-02-19 20:28:53,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 102 treesize of output 1 [2021-02-19 20:28:53,039 INFO L550 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:53,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:53,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:53,056 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,061 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:53,071 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,074 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,092 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-02-19 20:28:53,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 1 [2021-02-19 20:28:53,097 INFO L550 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:53,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:53,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:53,115 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,119 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:53,131 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,135 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,145 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-02-19 20:28:53,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 39 [2021-02-19 20:28:53,150 INFO L550 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:53,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:53,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:53,168 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,171 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,180 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,186 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,217 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:28:53,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 44 treesize of output 44 [2021-02-19 20:28:53,241 INFO L550 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 3 xjuncts. [2021-02-19 20:28:53,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:53,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:53,254 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,255 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:53,270 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,272 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2021-02-19 20:28:53,280 INFO L550 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:53,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:53,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:53,295 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,301 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:53,312 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,319 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,332 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-02-19 20:28:53,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 39 [2021-02-19 20:28:53,337 INFO L550 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:53,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:53,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:53,357 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,362 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,376 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,381 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,425 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:28:53,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 46 treesize of output 44 [2021-02-19 20:28:53,453 INFO L550 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 3 xjuncts. [2021-02-19 20:28:53,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:53,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:53,473 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,477 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,490 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,496 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,511 INFO L354 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2021-02-19 20:28:53,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 30 [2021-02-19 20:28:53,515 INFO L550 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:53,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:53,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:53,531 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,535 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:53,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:53,552 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-02-19 20:28:53,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 1 [2021-02-19 20:28:53,555 INFO L550 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:53,880 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 34 [2021-02-19 20:28:53,881 INFO L628 ElimStorePlain]: treesize reduction 611, result has 18.3 percent of original size [2021-02-19 20:28:53,890 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-1 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2021-02-19 20:28:53,891 INFO L247 ElimStorePlain]: Needed 74 recursive calls to eliminate 4 variables, input treesize:2785, output treesize:137 [2021-02-19 20:28:55,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:55,022 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:55,026 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:55,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 12 [2021-02-19 20:28:55,032 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:55,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:55,046 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:55,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2021-02-19 20:28:55,052 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:55,460 WARN L202 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-02-19 20:28:55,462 INFO L628 ElimStorePlain]: treesize reduction 95, result has 61.1 percent of original size [2021-02-19 20:28:55,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:55,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:55,479 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:55,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 12 [2021-02-19 20:28:55,484 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:55,637 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-02-19 20:28:55,638 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:28:55,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:55,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 14 [2021-02-19 20:28:55,656 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:55,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:55,666 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 20:28:55,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2021-02-19 20:28:55,673 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:55,888 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-02-19 20:28:55,889 INFO L628 ElimStorePlain]: treesize reduction 14, result has 85.9 percent of original size [2021-02-19 20:28:55,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:28:55,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2021-02-19 20:28:55,906 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 20:28:55,989 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:28:56,002 INFO L550 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:28:56,002 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 12 variables, input treesize:301, output treesize:5 [2021-02-19 20:28:56,038 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:28:56,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:28:56,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 24 [2021-02-19 20:28:56,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983069339] [2021-02-19 20:28:56,039 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-19 20:28:56,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:28:56,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-19 20:28:56,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2021-02-19 20:28:56,040 INFO L87 Difference]: Start difference. First operand 6280 states and 22407 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) [2021-02-19 20:28:56,336 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 31 [2021-02-19 20:28:56,605 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 39 [2021-02-19 20:28:57,067 WARN L202 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 50 [2021-02-19 20:28:58,086 WARN L202 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2021-02-19 20:28:59,040 WARN L202 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2021-02-19 20:29:00,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:29:00,496 INFO L93 Difference]: Finished difference Result 8577 states and 29914 transitions. [2021-02-19 20:29:00,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 20:29:00,499 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 33 [2021-02-19 20:29:00,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:29:00,519 INFO L225 Difference]: With dead ends: 8577 [2021-02-19 20:29:00,519 INFO L226 Difference]: Without dead ends: 8400 [2021-02-19 20:29:00,520 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=172, Invalid=820, Unknown=0, NotChecked=0, Total=992 [2021-02-19 20:29:00,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8400 states. [2021-02-19 20:29:00,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8400 to 6348. [2021-02-19 20:29:00,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6348 states, 6347 states have (on average 3.561997794233496) internal successors, (22608), 6347 states have internal predecessors, (22608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:29:00,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6348 states to 6348 states and 22608 transitions. [2021-02-19 20:29:00,648 INFO L78 Accepts]: Start accepts. Automaton has 6348 states and 22608 transitions. Word has length 33 [2021-02-19 20:29:00,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:29:00,648 INFO L480 AbstractCegarLoop]: Abstraction has 6348 states and 22608 transitions. [2021-02-19 20:29:00,648 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) [2021-02-19 20:29:00,648 INFO L276 IsEmpty]: Start isEmpty. Operand 6348 states and 22608 transitions. [2021-02-19 20:29:00,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 20:29:00,659 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:29:00,659 INFO L506 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:29:00,859 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1184,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:29:00,859 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:29:00,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:29:00,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1275794571, now seen corresponding path program 24 times [2021-02-19 20:29:00,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:29:00,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584172017] [2021-02-19 20:29:00,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:29:00,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:29:00,934 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-19 20:29:00,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584172017] [2021-02-19 20:29:00,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687494130] [2021-02-19 20:29:00,934 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 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 [2021-02-19 20:29:00,958 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-02-19 20:29:00,958 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:29:00,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2021-02-19 20:29:00,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:29:01,218 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-19 20:29:01,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:29:01,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-02-19 20:29:01,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315943634] [2021-02-19 20:29:01,219 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 20:29:01,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:29:01,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 20:29:01,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-02-19 20:29:01,219 INFO L87 Difference]: Start difference. First operand 6348 states and 22608 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 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) [2021-02-19 20:29:01,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:29:01,556 INFO L93 Difference]: Finished difference Result 9208 states and 32067 transitions. [2021-02-19 20:29:01,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:29:01,559 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 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 33 [2021-02-19 20:29:01,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:29:01,581 INFO L225 Difference]: With dead ends: 9208 [2021-02-19 20:29:01,582 INFO L226 Difference]: Without dead ends: 9114 [2021-02-19 20:29:01,582 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2021-02-19 20:29:01,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9114 states. [2021-02-19 20:29:01,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9114 to 6624. [2021-02-19 20:29:01,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6624 states, 6623 states have (on average 3.5461271327193113) internal successors, (23486), 6623 states have internal predecessors, (23486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:29:01,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6624 states to 6624 states and 23486 transitions. [2021-02-19 20:29:01,720 INFO L78 Accepts]: Start accepts. Automaton has 6624 states and 23486 transitions. Word has length 33 [2021-02-19 20:29:01,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:29:01,720 INFO L480 AbstractCegarLoop]: Abstraction has 6624 states and 23486 transitions. [2021-02-19 20:29:01,721 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 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) [2021-02-19 20:29:01,721 INFO L276 IsEmpty]: Start isEmpty. Operand 6624 states and 23486 transitions. [2021-02-19 20:29:01,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 20:29:01,732 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:29:01,732 INFO L506 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:29:01,933 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1358 [2021-02-19 20:29:01,933 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:29:01,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:29:01,933 INFO L82 PathProgramCache]: Analyzing trace with hash 354072345, now seen corresponding path program 25 times [2021-02-19 20:29:01,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:29:01,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481968109] [2021-02-19 20:29:01,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:29:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:29:01,982 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-02-19 20:29:01,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481968109] [2021-02-19 20:29:01,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554375265] [2021-02-19 20:29:01,983 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 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 [2021-02-19 20:29:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:29:02,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2021-02-19 20:29:02,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:29:02,337 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-02-19 20:29:02,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:29:02,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-02-19 20:29:02,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134646757] [2021-02-19 20:29:02,338 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-19 20:29:02,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:29:02,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-19 20:29:02,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-19 20:29:02,338 INFO L87 Difference]: Start difference. First operand 6624 states and 23486 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 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) [2021-02-19 20:29:02,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:29:02,480 INFO L93 Difference]: Finished difference Result 6820 states and 24081 transitions. [2021-02-19 20:29:02,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:29:02,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 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 33 [2021-02-19 20:29:02,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:29:02,500 INFO L225 Difference]: With dead ends: 6820 [2021-02-19 20:29:02,501 INFO L226 Difference]: Without dead ends: 6814 [2021-02-19 20:29:02,502 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-02-19 20:29:02,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6814 states. [2021-02-19 20:29:02,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6814 to 6552. [2021-02-19 20:29:02,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6552 states, 6551 states have (on average 3.551060906731797) internal successors, (23263), 6551 states have internal predecessors, (23263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:29:02,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6552 states to 6552 states and 23263 transitions. [2021-02-19 20:29:02,621 INFO L78 Accepts]: Start accepts. Automaton has 6552 states and 23263 transitions. Word has length 33 [2021-02-19 20:29:02,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:29:02,622 INFO L480 AbstractCegarLoop]: Abstraction has 6552 states and 23263 transitions. [2021-02-19 20:29:02,622 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 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) [2021-02-19 20:29:02,622 INFO L276 IsEmpty]: Start isEmpty. Operand 6552 states and 23263 transitions. [2021-02-19 20:29:02,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 20:29:02,633 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:29:02,633 INFO L506 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:29:02,834 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1359,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:29:02,834 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:29:02,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:29:02,834 INFO L82 PathProgramCache]: Analyzing trace with hash -424444597, now seen corresponding path program 26 times [2021-02-19 20:29:02,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:29:02,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84663656] [2021-02-19 20:29:02,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:29:02,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:29:03,212 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 23 [2021-02-19 20:29:03,380 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2021-02-19 20:29:03,991 WARN L202 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 47 [2021-02-19 20:29:04,617 WARN L202 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 51 [2021-02-19 20:29:05,151 WARN L202 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 47 [2021-02-19 20:29:05,356 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 22 [2021-02-19 20:29:05,581 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:29:05,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84663656] [2021-02-19 20:29:05,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507826356] [2021-02-19 20:29:05,582 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 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:29:05,606 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 20:29:05,606 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:29:05,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 24 conjunts are in the unsatisfiable core [2021-02-19 20:29:05,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:29:06,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 20:29:06,012 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:29:06,054 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:29:06,057 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:29:06,058 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:48 [2021-02-19 20:29:06,372 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-02-19 20:29:06,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:29:06,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:29:06,439 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:29:06,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:29:06,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:29:06,474 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:29:06,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:29:06,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:29:06,506 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:29:06,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 20:29:06,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 20:29:06,533 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 20:29:06,835 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-02-19 20:29:06,836 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:29:06,840 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-02-19 20:29:06,840 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:301, output treesize:297 [2021-02-19 20:29:07,255 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-02-19 20:29:08,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2021-02-19 20:29:08,355 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:29:09,565 WARN L202 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 345 [2021-02-19 20:29:09,567 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:29:09,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 37 [2021-02-19 20:29:09,597 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:29:12,200 WARN L202 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 347 DAG size of output: 335 [2021-02-19 20:29:12,202 INFO L628 ElimStorePlain]: treesize reduction 56, result has 95.1 percent of original size [2021-02-19 20:29:12,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 35 [2021-02-19 20:29:12,233 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:29:13,100 WARN L202 SmtUtils]: Spent 866.00 ms on a formula simplification that was a NOOP. DAG size: 329 [2021-02-19 20:29:13,101 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:29:13,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 33 [2021-02-19 20:29:13,129 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 20:29:14,315 WARN L202 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 318 DAG size of output: 150 [2021-02-19 20:29:14,317 INFO L628 ElimStorePlain]: treesize reduction 550, result has 47.2 percent of original size [2021-02-19 20:29:14,317 INFO L518 ElimStorePlain]: Eliminatee v_prenex_284 vanished before elimination [2021-02-19 20:29:14,317 INFO L518 ElimStorePlain]: Eliminatee v_prenex_285 vanished before elimination [2021-02-19 20:29:14,317 INFO L518 ElimStorePlain]: Eliminatee v_prenex_264 vanished before elimination [2021-02-19 20:29:14,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 35 [2021-02-19 20:29:14,336 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 20:29:14,875 WARN L202 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-02-19 20:29:14,876 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:29:14,876 INFO L518 ElimStorePlain]: Eliminatee v_prenex_265 vanished before elimination [2021-02-19 20:29:14,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 33 [2021-02-19 20:29:14,897 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 20:29:15,939 WARN L202 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 134 DAG size of output: 133 [2021-02-19 20:29:15,941 INFO L628 ElimStorePlain]: treesize reduction 5, result has 98.9 percent of original size [2021-02-19 20:29:15,941 INFO L518 ElimStorePlain]: Eliminatee v_prenex_266 vanished before elimination [2021-02-19 20:29:15,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 35 [2021-02-19 20:29:15,955 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 20:29:16,401 WARN L202 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-19 20:29:16,403 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:29:16,403 INFO L518 ElimStorePlain]: Eliminatee v_prenex_267 vanished before elimination [2021-02-19 20:29:16,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 33 [2021-02-19 20:29:16,434 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 20:29:17,063 WARN L202 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 86 [2021-02-19 20:29:17,065 INFO L628 ElimStorePlain]: treesize reduction 126, result has 68.8 percent of original size [2021-02-19 20:29:17,065 INFO L518 ElimStorePlain]: Eliminatee v_prenex_268 vanished before elimination [2021-02-19 20:29:17,065 INFO L518 ElimStorePlain]: Eliminatee v_prenex_269 vanished before elimination [2021-02-19 20:29:17,065 INFO L518 ElimStorePlain]: Eliminatee v_prenex_290 vanished before elimination [2021-02-19 20:29:17,065 INFO L518 ElimStorePlain]: Eliminatee v_prenex_291 vanished before elimination [2021-02-19 20:29:17,065 INFO L518 ElimStorePlain]: Eliminatee v_prenex_270 vanished before elimination [2021-02-19 20:29:17,065 INFO L518 ElimStorePlain]: Eliminatee v_prenex_292 vanished before elimination [2021-02-19 20:29:17,065 INFO L518 ElimStorePlain]: Eliminatee v_prenex_271 vanished before elimination [2021-02-19 20:29:17,065 INFO L518 ElimStorePlain]: Eliminatee v_prenex_293 vanished before elimination [2021-02-19 20:29:17,065 INFO L518 ElimStorePlain]: Eliminatee v_prenex_272 vanished before elimination [2021-02-19 20:29:17,065 INFO L518 ElimStorePlain]: Eliminatee v_prenex_273 vanished before elimination [2021-02-19 20:29:17,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2021-02-19 20:29:17,081 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-02-19 20:29:17,352 WARN L202 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-02-19 20:29:17,353 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:29:17,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 37 [2021-02-19 20:29:17,368 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 20:29:17,687 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 43 [2021-02-19 20:29:17,688 INFO L628 ElimStorePlain]: treesize reduction 126, result has 50.0 percent of original size [2021-02-19 20:29:17,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2021-02-19 20:29:17,704 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-02-19 20:29:17,845 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2021-02-19 20:29:17,846 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:29:17,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 37 [2021-02-19 20:29:17,861 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-02-19 20:29:18,029 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 21 [2021-02-19 20:29:18,031 INFO L628 ElimStorePlain]: treesize reduction 35, result has 59.3 percent of original size [2021-02-19 20:29:18,031 INFO L518 ElimStorePlain]: Eliminatee v_prenex_278 vanished before elimination [2021-02-19 20:29:18,031 INFO L518 ElimStorePlain]: Eliminatee v_prenex_279 vanished before elimination [2021-02-19 20:29:18,031 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-02-19 20:29:18,031 INFO L518 ElimStorePlain]: Eliminatee B vanished before elimination [2021-02-19 20:29:18,034 INFO L550 ElimStorePlain]: Start of recursive call 1: 32 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-02-19 20:29:18,034 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 32 variables, input treesize:1137, output treesize:47 [2021-02-19 20:29:18,560 WARN L202 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 20 [2021-02-19 20:29:18,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-02-19 20:29:18,641 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:29:18,682 INFO L628 ElimStorePlain]: treesize reduction 41, result has 10.9 percent of original size [2021-02-19 20:29:18,683 INFO L518 ElimStorePlain]: Eliminatee v_prenex_294 vanished before elimination [2021-02-19 20:29:18,685 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:29:18,685 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:61, output treesize:5 [2021-02-19 20:29:18,725 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:29:18,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:29:18,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-02-19 20:29:18,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935266816] [2021-02-19 20:29:18,726 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-02-19 20:29:18,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:29:18,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-02-19 20:29:18,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2021-02-19 20:29:18,727 INFO L87 Difference]: Start difference. First operand 6552 states and 23263 transitions. Second operand has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 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) [2021-02-19 20:29:19,519 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-02-19 20:29:19,859 WARN L202 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2021-02-19 20:29:20,419 WARN L202 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2021-02-19 20:29:21,459 WARN L202 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-02-19 20:29:22,825 WARN L202 SmtUtils]: Spent 918.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 58 [2021-02-19 20:29:23,575 WARN L202 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2021-02-19 20:29:24,880 WARN L202 SmtUtils]: Spent 924.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-02-19 20:29:25,603 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 48 [2021-02-19 20:29:26,765 WARN L202 SmtUtils]: Spent 955.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2021-02-19 20:29:27,134 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2021-02-19 20:29:28,119 WARN L202 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2021-02-19 20:29:28,980 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 24 [2021-02-19 20:29:30,171 WARN L202 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2021-02-19 20:29:30,798 WARN L202 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2021-02-19 20:29:31,089 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2021-02-19 20:29:32,326 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-02-19 20:29:32,708 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2021-02-19 20:29:33,356 WARN L202 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2021-02-19 20:29:33,812 WARN L202 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2021-02-19 20:29:35,325 WARN L202 SmtUtils]: Spent 941.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2021-02-19 20:29:35,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 20:29:35,715 INFO L93 Difference]: Finished difference Result 10683 states and 36755 transitions. [2021-02-19 20:29:35,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-02-19 20:29:35,718 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 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 33 [2021-02-19 20:29:35,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 20:29:35,745 INFO L225 Difference]: With dead ends: 10683 [2021-02-19 20:29:35,745 INFO L226 Difference]: Without dead ends: 10563 [2021-02-19 20:29:35,746 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=363, Invalid=1989, Unknown=0, NotChecked=0, Total=2352 [2021-02-19 20:29:35,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10563 states. [2021-02-19 20:29:35,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10563 to 6710. [2021-02-19 20:29:35,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6710 states, 6709 states have (on average 3.552839469369504) internal successors, (23836), 6709 states have internal predecessors, (23836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:29:35,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6710 states to 6710 states and 23836 transitions. [2021-02-19 20:29:35,916 INFO L78 Accepts]: Start accepts. Automaton has 6710 states and 23836 transitions. Word has length 33 [2021-02-19 20:29:35,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 20:29:35,916 INFO L480 AbstractCegarLoop]: Abstraction has 6710 states and 23836 transitions. [2021-02-19 20:29:35,916 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 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) [2021-02-19 20:29:35,916 INFO L276 IsEmpty]: Start isEmpty. Operand 6710 states and 23836 transitions. [2021-02-19 20:29:35,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 20:29:35,928 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 20:29:35,928 INFO L506 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 20:29:36,142 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1360 [2021-02-19 20:29:36,142 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:29:36,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:29:36,142 INFO L82 PathProgramCache]: Analyzing trace with hash 246689023, now seen corresponding path program 27 times [2021-02-19 20:29:36,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:29:36,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954443749] [2021-02-19 20:29:36,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:29:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:29:36,490 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 21 [2021-02-19 20:29:36,631 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2021-02-19 20:29:37,093 WARN L202 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 43 [2021-02-19 20:29:37,642 WARN L202 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 50 [2021-02-19 20:29:38,507 WARN L202 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 50 [2021-02-19 20:29:39,006 WARN L202 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 31 [2021-02-19 20:29:39,285 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:29:39,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954443749] [2021-02-19 20:29:39,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118063943] [2021-02-19 20:29:39,285 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 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 [2021-02-19 20:29:39,311 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-02-19 20:29:39,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:29:39,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 29 conjunts are in the unsatisfiable core [2021-02-19 20:29:39,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:29:39,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-02-19 20:29:39,767 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:29:39,825 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:29:39,828 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:29:39,828 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:42 [2021-02-19 20:29:40,155 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-02-19 20:29:40,298 INFO L354 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2021-02-19 20:29:40,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 26 [2021-02-19 20:29:40,304 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:29:40,379 INFO L354 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2021-02-19 20:29:40,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 26 [2021-02-19 20:29:40,385 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 20:29:40,459 INFO L354 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2021-02-19 20:29:40,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 26 [2021-02-19 20:29:40,465 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 20:29:40,534 INFO L354 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2021-02-19 20:29:40,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 26 [2021-02-19 20:29:40,539 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 20:29:40,969 WARN L202 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-02-19 20:29:40,971 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:29:40,978 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2021-02-19 20:29:40,979 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:285, output treesize:281 [2021-02-19 20:29:41,539 WARN L202 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-02-19 20:29:42,152 WARN L202 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-02-19 20:29:43,724 WARN L202 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2021-02-19 20:29:46,944 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 20:29:46,945 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 20:29:46,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 51 [2021-02-19 20:29:46,969 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-02-19 20:29:50,135 WARN L202 SmtUtils]: Spent 3.17 s on a formula simplification that was a NOOP. DAG size: 531 [2021-02-19 20:29:50,137 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:29:50,307 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 20:29:50,308 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 20:29:50,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 51 [2021-02-19 20:29:50,334 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-02-19 20:29:56,708 WARN L202 SmtUtils]: Spent 6.37 s on a formula simplification. DAG size of input: 542 DAG size of output: 538 [2021-02-19 20:29:56,710 INFO L628 ElimStorePlain]: treesize reduction 75, result has 96.3 percent of original size [2021-02-19 20:29:56,850 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:29:56,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 84 [2021-02-19 20:29:56,943 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2021-02-19 20:30:04,326 WARN L202 SmtUtils]: Spent 7.38 s on a formula simplification. DAG size of input: 537 DAG size of output: 524 [2021-02-19 20:30:04,328 INFO L628 ElimStorePlain]: treesize reduction 112, result has 94.5 percent of original size [2021-02-19 20:30:04,481 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:30:04,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 84 [2021-02-19 20:30:04,594 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 3 xjuncts. [2021-02-19 20:30:12,014 WARN L202 SmtUtils]: Spent 7.42 s on a formula simplification. DAG size of input: 522 DAG size of output: 514 [2021-02-19 20:30:12,017 INFO L628 ElimStorePlain]: treesize reduction 55, result has 97.3 percent of original size [2021-02-19 20:30:12,284 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 20:30:12,285 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 20:30:12,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 51 [2021-02-19 20:30:12,329 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 20:30:12,548 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 20:30:12,549 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 20:30:12,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 51 [2021-02-19 20:30:12,569 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 20:30:16,531 WARN L202 SmtUtils]: Spent 3.96 s on a formula simplification that was a NOOP. DAG size: 517 [2021-02-19 20:30:16,533 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:30:16,775 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 20:30:16,777 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 20:30:16,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 44 [2021-02-19 20:30:16,799 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 20:30:17,039 WARN L202 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 20:30:17,041 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 20:30:17,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 44 [2021-02-19 20:30:17,062 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 20:30:20,518 WARN L202 SmtUtils]: Spent 3.46 s on a formula simplification that was a NOOP. DAG size: 518 [2021-02-19 20:30:20,519 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:30:20,719 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 20:30:20,722 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 20:30:20,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 62 [2021-02-19 20:30:20,741 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-02-19 20:30:24,962 WARN L202 SmtUtils]: Spent 4.22 s on a formula simplification that was a NOOP. DAG size: 532 [2021-02-19 20:30:24,964 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:30:25,184 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-19 20:30:25,186 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:30:25,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 94 treesize of output 92 [2021-02-19 20:30:25,337 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 4 xjuncts. [2021-02-19 20:30:25,454 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-02-19 20:30:25,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 92 treesize of output 1 [2021-02-19 20:30:25,461 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-02-19 20:30:34,107 WARN L202 SmtUtils]: Spent 8.64 s on a formula simplification. DAG size of input: 532 DAG size of output: 514 [2021-02-19 20:30:34,109 INFO L628 ElimStorePlain]: treesize reduction 230, result has 89.4 percent of original size [2021-02-19 20:30:34,347 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-19 20:30:34,348 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:30:34,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 69 [2021-02-19 20:30:34,547 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 6 xjuncts. [2021-02-19 20:30:34,660 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-02-19 20:30:34,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 1 [2021-02-19 20:30:34,666 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-02-19 20:30:48,371 WARN L202 SmtUtils]: Spent 13.70 s on a formula simplification. DAG size of input: 524 DAG size of output: 504 [2021-02-19 20:30:48,373 INFO L628 ElimStorePlain]: treesize reduction 239, result has 88.6 percent of original size [2021-02-19 20:30:48,576 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-19 20:30:48,578 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:30:48,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 125 [2021-02-19 20:30:48,838 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 3 xjuncts. [2021-02-19 20:31:09,732 WARN L202 SmtUtils]: Spent 20.89 s on a formula simplification. DAG size of input: 526 DAG size of output: 480 [2021-02-19 20:31:09,735 INFO L628 ElimStorePlain]: treesize reduction 391, result has 81.9 percent of original size [2021-02-19 20:31:10,151 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 20:31:10,153 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 20:31:10,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 51 [2021-02-19 20:31:10,188 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2021-02-19 20:31:18,707 WARN L202 SmtUtils]: Spent 8.52 s on a formula simplification. DAG size of input: 489 DAG size of output: 485 [2021-02-19 20:31:18,709 INFO L628 ElimStorePlain]: treesize reduction 75, result has 96.0 percent of original size [2021-02-19 20:31:18,907 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-19 20:31:18,909 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:31:18,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 84 [2021-02-19 20:31:19,066 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 3 xjuncts. [2021-02-19 20:31:32,902 WARN L202 SmtUtils]: Spent 13.83 s on a formula simplification. DAG size of input: 478 DAG size of output: 469 [2021-02-19 20:31:32,904 INFO L628 ElimStorePlain]: treesize reduction 80, result has 95.7 percent of original size [2021-02-19 20:31:33,236 WARN L202 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 20:31:33,238 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 20:31:33,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 51 [2021-02-19 20:31:33,261 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-02-19 20:31:33,512 WARN L202 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 20:31:33,515 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 20:31:33,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 51 [2021-02-19 20:31:33,537 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-02-19 20:31:38,103 WARN L202 SmtUtils]: Spent 4.57 s on a formula simplification that was a NOOP. DAG size: 474 [2021-02-19 20:31:38,105 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:31:38,411 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 20:31:38,413 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 20:31:38,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 62 [2021-02-19 20:31:38,435 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-02-19 20:31:38,711 WARN L202 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 20:31:38,713 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 20:31:38,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 62 [2021-02-19 20:31:38,735 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-02-19 20:31:43,054 WARN L202 SmtUtils]: Spent 4.32 s on a formula simplification that was a NOOP. DAG size: 484 [2021-02-19 20:31:43,057 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:31:43,513 WARN L202 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 20:31:43,515 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 20:31:43,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 44 [2021-02-19 20:31:43,539 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-02-19 20:31:48,231 WARN L202 SmtUtils]: Spent 4.69 s on a formula simplification that was a NOOP. DAG size: 488 [2021-02-19 20:31:48,233 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:31:48,518 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 20:31:48,520 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 20:31:48,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 51 [2021-02-19 20:31:48,556 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 2 xjuncts. [2021-02-19 20:31:58,052 WARN L202 SmtUtils]: Spent 9.49 s on a formula simplification. DAG size of input: 499 DAG size of output: 495 [2021-02-19 20:31:58,055 INFO L628 ElimStorePlain]: treesize reduction 75, result has 96.3 percent of original size [2021-02-19 20:31:58,347 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-19 20:31:58,349 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:31:58,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 118 treesize of output 112 [2021-02-19 20:31:58,518 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 4 xjuncts. [2021-02-19 20:31:58,633 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-02-19 20:31:58,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 116 treesize of output 1 [2021-02-19 20:31:58,639 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-02-19 20:32:13,584 WARN L202 SmtUtils]: Spent 14.94 s on a formula simplification. DAG size of input: 513 DAG size of output: 473 [2021-02-19 20:32:13,586 INFO L628 ElimStorePlain]: treesize reduction 325, result has 84.5 percent of original size [2021-02-19 20:32:13,800 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-19 20:32:13,803 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:32:13,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 84 [2021-02-19 20:32:13,933 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 4 xjuncts. [2021-02-19 20:32:24,363 WARN L202 SmtUtils]: Spent 10.43 s on a formula simplification. DAG size of input: 470 DAG size of output: 460 [2021-02-19 20:32:24,367 INFO L628 ElimStorePlain]: treesize reduction 105, result has 94.4 percent of original size [2021-02-19 20:32:24,689 WARN L202 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 20:32:24,691 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 20:32:24,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 59 [2021-02-19 20:32:24,716 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-02-19 20:32:29,888 WARN L202 SmtUtils]: Spent 5.17 s on a formula simplification that was a NOOP. DAG size: 464 [2021-02-19 20:32:29,890 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:32:30,175 WARN L202 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 20:32:30,177 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 20:32:30,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 52 [2021-02-19 20:32:30,202 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-02-19 20:32:35,506 WARN L202 SmtUtils]: Spent 5.30 s on a formula simplification that was a NOOP. DAG size: 469 [2021-02-19 20:32:35,508 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:32:35,737 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-19 20:32:35,739 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:32:35,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 84 [2021-02-19 20:32:35,865 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 3 xjuncts. [2021-02-19 20:32:47,178 WARN L202 SmtUtils]: Spent 11.31 s on a formula simplification. DAG size of input: 465 DAG size of output: 454 [2021-02-19 20:32:47,180 INFO L628 ElimStorePlain]: treesize reduction 83, result has 95.5 percent of original size [2021-02-19 20:32:47,543 WARN L202 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 20:32:47,545 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 20:32:47,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 52 [2021-02-19 20:32:47,572 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-02-19 20:32:47,867 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 20:32:47,869 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 20:32:47,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 52 [2021-02-19 20:32:47,896 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-02-19 20:32:53,179 WARN L202 SmtUtils]: Spent 5.28 s on a formula simplification that was a NOOP. DAG size: 453 [2021-02-19 20:32:53,181 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:32:53,478 WARN L202 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-19 20:32:53,480 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:32:53,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 71 [2021-02-19 20:32:53,619 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 3 xjuncts. [2021-02-19 20:32:53,740 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-02-19 20:32:53,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 1 [2021-02-19 20:32:53,748 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-02-19 20:33:04,689 WARN L202 SmtUtils]: Spent 10.94 s on a formula simplification. DAG size of input: 470 DAG size of output: 441 [2021-02-19 20:33:04,692 INFO L628 ElimStorePlain]: treesize reduction 282, result has 85.6 percent of original size [2021-02-19 20:33:05,222 WARN L202 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 20:33:05,225 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 20:33:05,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 55 [2021-02-19 20:33:05,261 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 2 xjuncts. [2021-02-19 20:33:10,835 WARN L202 SmtUtils]: Spent 5.57 s on a formula simplification that was a NOOP. DAG size: 448 [2021-02-19 20:33:10,838 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:33:11,085 WARN L202 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-19 20:33:11,087 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:33:11,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 127 [2021-02-19 20:33:11,317 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 3 xjuncts. [2021-02-19 20:33:22,674 WARN L202 SmtUtils]: Spent 11.36 s on a formula simplification. DAG size of input: 453 DAG size of output: 431 [2021-02-19 20:33:22,677 INFO L628 ElimStorePlain]: treesize reduction 167, result has 90.9 percent of original size [2021-02-19 20:33:23,014 WARN L202 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 20:33:23,016 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 20:33:23,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 55 [2021-02-19 20:33:23,042 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-02-19 20:33:23,391 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 20:33:23,393 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 20:33:23,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 55 [2021-02-19 20:33:23,417 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-02-19 20:33:29,141 WARN L202 SmtUtils]: Spent 5.72 s on a formula simplification that was a NOOP. DAG size: 439 [2021-02-19 20:33:29,143 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:33:29,510 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-19 20:33:29,512 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:33:29,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 99 treesize of output 101 [2021-02-19 20:33:29,637 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 2 xjuncts. [2021-02-19 20:33:30,070 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 8 [2021-02-19 20:33:30,072 INFO L354 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2021-02-19 20:33:30,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 84 [2021-02-19 20:33:30,117 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-02-19 20:33:40,585 WARN L202 SmtUtils]: Spent 10.47 s on a formula simplification. DAG size of input: 442 DAG size of output: 418 [2021-02-19 20:33:40,588 INFO L628 ElimStorePlain]: treesize reduction 209, result has 88.3 percent of original size [2021-02-19 20:33:40,825 WARN L202 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-19 20:33:40,827 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:33:40,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 82 [2021-02-19 20:33:41,018 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 4 xjuncts. [2021-02-19 20:33:51,518 WARN L202 SmtUtils]: Spent 10.50 s on a formula simplification. DAG size of input: 422 DAG size of output: 403 [2021-02-19 20:33:51,521 INFO L628 ElimStorePlain]: treesize reduction 222, result has 87.4 percent of original size [2021-02-19 20:33:51,859 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-19 20:33:51,861 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:33:51,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 94 treesize of output 92 [2021-02-19 20:33:52,110 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 3 xjuncts. [2021-02-19 20:33:52,236 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-02-19 20:33:52,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 92 treesize of output 1 [2021-02-19 20:33:52,244 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2021-02-19 20:34:02,675 WARN L202 SmtUtils]: Spent 10.43 s on a formula simplification. DAG size of input: 406 DAG size of output: 386 [2021-02-19 20:34:02,678 INFO L628 ElimStorePlain]: treesize reduction 272, result has 83.9 percent of original size [2021-02-19 20:34:03,144 WARN L202 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 20:34:03,146 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 20:34:03,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 52 [2021-02-19 20:34:03,171 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-02-19 20:34:08,199 WARN L202 SmtUtils]: Spent 5.03 s on a formula simplification that was a NOOP. DAG size: 386 [2021-02-19 20:34:08,201 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:34:08,479 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 20:34:08,480 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 20:34:08,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 44 [2021-02-19 20:34:08,502 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-02-19 20:34:13,989 WARN L202 SmtUtils]: Spent 5.49 s on a formula simplification that was a NOOP. DAG size: 390 [2021-02-19 20:34:13,991 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:34:14,228 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-19 20:34:14,229 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:34:14,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 84 [2021-02-19 20:34:14,327 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 2 xjuncts. [2021-02-19 20:34:30,032 WARN L202 SmtUtils]: Spent 15.70 s on a formula simplification. DAG size of input: 385 DAG size of output: 376 [2021-02-19 20:34:30,035 INFO L628 ElimStorePlain]: treesize reduction 69, result has 95.3 percent of original size [2021-02-19 20:34:30,269 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-19 20:34:30,271 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:34:30,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 98 treesize of output 96 [2021-02-19 20:34:30,389 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 4 xjuncts. [2021-02-19 20:34:41,775 WARN L202 SmtUtils]: Spent 11.39 s on a formula simplification. DAG size of input: 376 DAG size of output: 363 [2021-02-19 20:34:41,778 INFO L628 ElimStorePlain]: treesize reduction 120, result has 92.0 percent of original size [2021-02-19 20:34:41,999 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-19 20:34:42,001 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:34:42,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 82 [2021-02-19 20:34:42,193 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 3 xjuncts. Received shutdown request... [2021-02-19 20:34:45,695 WARN L219 SmtUtils]: Removed 18 from assertion stack [2021-02-19 20:34:45,896 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1390,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:34:45,896 WARN L545 AbstractCegarLoop]: Verification canceled [2021-02-19 20:34:45,900 WARN L224 ceAbstractionStarter]: Timeout [2021-02-19 20:34:45,900 INFO L202 PluginConnector]: Adding new model three-array-max-OH4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 08:34:45 BasicIcfg [2021-02-19 20:34:45,900 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 20:34:45,901 INFO L168 Benchmark]: Toolchain (without parser) took 547876.21 ms. Allocated memory was 255.9 MB in the beginning and 897.6 MB in the end (delta: 641.7 MB). Free memory was 236.4 MB in the beginning and 389.2 MB in the end (delta: -152.8 MB). Peak memory consumption was 795.3 MB. Max. memory is 16.0 GB. [2021-02-19 20:34:45,901 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory was 237.6 MB in the beginning and 237.5 MB in the end (delta: 92.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-19 20:34:45,901 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.25 ms. Allocated memory is still 255.9 MB. Free memory was 235.9 MB in the beginning and 234.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-19 20:34:45,901 INFO L168 Benchmark]: Boogie Preprocessor took 20.77 ms. Allocated memory is still 255.9 MB. Free memory was 234.4 MB in the beginning and 233.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-19 20:34:45,901 INFO L168 Benchmark]: RCFGBuilder took 326.48 ms. Allocated memory is still 255.9 MB. Free memory was 233.2 MB in the beginning and 234.7 MB in the end (delta: -1.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. [2021-02-19 20:34:45,901 INFO L168 Benchmark]: TraceAbstraction took 547494.61 ms. Allocated memory was 255.9 MB in the beginning and 897.6 MB in the end (delta: 641.7 MB). Free memory was 234.3 MB in the beginning and 389.2 MB in the end (delta: -154.9 MB). Peak memory consumption was 791.5 MB. Max. memory is 16.0 GB. [2021-02-19 20:34:45,902 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 0.11 ms. Allocated memory is still 255.9 MB. Free memory was 237.6 MB in the beginning and 237.5 MB in the end (delta: 92.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 25.25 ms. Allocated memory is still 255.9 MB. Free memory was 235.9 MB in the beginning and 234.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 20.77 ms. Allocated memory is still 255.9 MB. Free memory was 234.4 MB in the beginning and 233.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 326.48 ms. Allocated memory is still 255.9 MB. Free memory was 233.2 MB in the beginning and 234.7 MB in the end (delta: -1.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 547494.61 ms. Allocated memory was 255.9 MB in the beginning and 897.6 MB in the end (delta: 641.7 MB). Free memory was 234.3 MB in the beginning and 389.2 MB in the end (delta: -154.9 MB). Peak memory consumption was 791.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 73). Cancelled while BasicCegarLoop was analyzing trace of length 34 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations,while SimplifyDDAWithTimeout was simplifying term of DAG size 375 for 3498ms.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 547.4s, OverallIterations: 32, TraceHistogramMax: 2, AutomataDifference: 62.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1100 SDtfs, 4676 SDslu, 5465 SDs, 0 SdLazy, 11364 SolverSat, 819 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1254 GetRequests, 642 SyntacticMatches, 4 SemanticMatches, 608 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4925 ImplicationChecksByTransitivity, 72.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6710occurred in iteration=31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 31 MinimizatonAttempts, 42309 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 165.4s InterpolantComputationTime, 1675 NumberOfCodeBlocks, 1675 NumberOfCodeBlocksAsserted, 85 NumberOfCheckSat, 1619 ConstructedInterpolants, 6 QuantifiedInterpolants, 2108609 SizeOfPredicates, 73 NumberOfNonLiveVariables, 2015 ConjunctsInSsa, 405 ConjunctsInUnsatCore, 56 InterpolantComputations, 6 PerfectInterpolantSequences, 153/498 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