/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-POR-Persistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d47b94137d5c7dd60722882962a90fb345e61909-d47b941 [2021-05-04 01:53:25,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-04 01:53:25,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-04 01:53:25,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-04 01:53:25,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-04 01:53:25,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-04 01:53:25,367 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-04 01:53:25,368 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-04 01:53:25,370 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-04 01:53:25,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-04 01:53:25,372 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-04 01:53:25,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-04 01:53:25,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-04 01:53:25,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-04 01:53:25,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-04 01:53:25,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-04 01:53:25,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-04 01:53:25,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-04 01:53:25,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-04 01:53:25,391 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-04 01:53:25,392 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-POR-Persistent-NoLbe.epf [2021-05-04 01:53:25,420 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-04 01:53:25,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-04 01:53:25,421 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-04 01:53:25,421 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-04 01:53:25,423 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-04 01:53:25,423 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-04 01:53:25,423 INFO L138 SettingsManager]: * Use SBE=true [2021-05-04 01:53:25,423 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-04 01:53:25,423 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-04 01:53:25,423 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-04 01:53:25,424 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-04 01:53:25,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-04 01:53:25,424 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-04 01:53:25,424 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-04 01:53:25,424 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-04 01:53:25,425 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-04 01:53:25,425 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-04 01:53:25,425 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-04 01:53:25,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-04 01:53:25,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-04 01:53:25,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-04 01:53:25,425 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-04 01:53:25,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-04 01:53:25,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-04 01:53:25,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-04 01:53:25,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-04 01:53:25,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-04 01:53:25,426 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-04 01:53:25,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-04 01:53:25,426 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-04 01:53:25,426 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-05-04 01:53:25,426 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-04 01:53:25,426 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SETS [2021-05-04 01:53:25,427 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-04 01:53:25,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-04 01:53:25,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-04 01:53:25,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-04 01:53:25,732 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-05-04 01:53:25,733 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-05-04 01:53:25,733 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq.wvr.bpl [2021-05-04 01:53:25,734 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq.wvr.bpl' [2021-05-04 01:53:25,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-04 01:53:25,770 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-04 01:53:25,772 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-04 01:53:25,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-04 01:53:25,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-04 01:53:25,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:53:25" (1/1) ... [2021-05-04 01:53:25,786 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:53:25" (1/1) ... [2021-05-04 01:53:25,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-04 01:53:25,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-04 01:53:25,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-04 01:53:25,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-04 01:53:25,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:53:25" (1/1) ... [2021-05-04 01:53:25,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:53:25" (1/1) ... [2021-05-04 01:53:25,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:53:25" (1/1) ... [2021-05-04 01:53:25,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:53:25" (1/1) ... [2021-05-04 01:53:25,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:53:25" (1/1) ... [2021-05-04 01:53:25,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:53:25" (1/1) ... [2021-05-04 01:53:25,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:53:25" (1/1) ... [2021-05-04 01:53:25,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-04 01:53:25,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-04 01:53:25,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-04 01:53:25,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-04 01:53:25,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:53:25" (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 [2021-05-04 01:53:25,860 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-05-04 01:53:25,860 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-05-04 01:53:25,861 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-05-04 01:53:25,861 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-05-04 01:53:25,861 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-05-04 01:53:25,861 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-05-04 01:53:25,861 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-05-04 01:53:25,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-04 01:53:25,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-04 01:53:25,862 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-04 01:53:25,997 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-04 01:53:25,997 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-05-04 01:53:25,998 INFO L202 PluginConnector]: Adding new model dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 01:53:25 BoogieIcfgContainer [2021-05-04 01:53:25,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-04 01:53:26,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-04 01:53:26,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-04 01:53:26,002 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-04 01:53:26,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:53:25" (1/2) ... [2021-05-04 01:53:26,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fb3e21d and model type dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 01:53:26, skipping insertion in model container [2021-05-04 01:53:26,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 01:53:25" (2/2) ... [2021-05-04 01:53:26,004 INFO L111 eAbstractionObserver]: Analyzing ICFG dec-subseq.wvr.bpl [2021-05-04 01:53:26,007 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-04 01:53:26,007 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-04 01:53:26,010 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-04 01:53:26,010 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-04 01:53:26,032 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-05-04 01:53:26,058 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-05-04 01:53:26,164 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-04 01:53:26,164 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-04 01:53:26,164 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-04 01:53:26,164 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-04 01:53:26,164 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-04 01:53:26,164 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-04 01:53:26,164 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-04 01:53:26,164 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-04 01:53:26,294 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 01:53:26,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 01:53:26,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1620049623, now seen corresponding path program 1 times [2021-05-04 01:53:26,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 01:53:26,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925578217] [2021-05-04 01:53:26,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 01:53:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 01:53:26,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:53:26,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925578217] [2021-05-04 01:53:26,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-04 01:53:26,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-04 01:53:26,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210086617] [2021-05-04 01:53:26,418 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-04 01:53:26,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 01:53:26,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-04 01:53:26,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-04 01:53:26,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:53:26,430 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 01:53:26,432 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-04 01:53:26,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:53:26,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 01:53:26,453 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-04 01:53:26,453 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 01:53:26,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 01:53:26,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1217558278, now seen corresponding path program 1 times [2021-05-04 01:53:26,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 01:53:26,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156073295] [2021-05-04 01:53:26,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 01:53:26,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 01:53:26,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:53:26,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156073295] [2021-05-04 01:53:26,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-04 01:53:26,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-04 01:53:26,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191753160] [2021-05-04 01:53:26,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-04 01:53:26,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 01:53:26,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-04 01:53:26,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-05-04 01:53:26,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:53:26,520 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 01:53:26,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-04 01:53:26,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 01:53:26,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:53:26,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 01:53:26,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:53:26,551 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-04 01:53:26,552 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 01:53:26,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 01:53:26,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1103442064, now seen corresponding path program 1 times [2021-05-04 01:53:26,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 01:53:26,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553752973] [2021-05-04 01:53:26,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 01:53:26,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 01:53:26,729 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:53:26,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553752973] [2021-05-04 01:53:26,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614216448] [2021-05-04 01:53:26,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 01:53:26,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 01:53:26,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-04 01:53:26,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 01:53:26,902 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 [2021-05-04 01:53:26,918 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 01:53:26,923 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:53:26,924 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-04 01:53:26,924 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:7 [2021-05-04 01:53:26,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-05-04 01:53:26,956 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 01:53:26,959 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:53:26,962 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-04 01:53:26,962 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2021-05-04 01:53:26,981 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:53:26,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 01:53:26,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 11 [2021-05-04 01:53:26,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447122449] [2021-05-04 01:53:26,982 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-04 01:53:26,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 01:53:26,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-04 01:53:26,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-05-04 01:53:26,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:53:26,984 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 01:53:26,984 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-04 01:53:26,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 01:53:26,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:53:26,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:53:27,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 01:53:27,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:53:27,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:53:27,281 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 01:53:27,281 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 01:53:27,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 01:53:27,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1294911949, now seen corresponding path program 2 times [2021-05-04 01:53:27,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 01:53:27,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573216135] [2021-05-04 01:53:27,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 01:53:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 01:53:27,372 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:53:27,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573216135] [2021-05-04 01:53:27,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324523796] [2021-05-04 01:53:27,373 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 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 [2021-05-04 01:53:27,472 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-04 01:53:27,472 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-04 01:53:27,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2021-05-04 01:53:27,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 01:53:27,585 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:53:27,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 01:53:27,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 6 [2021-05-04 01:53:27,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209933487] [2021-05-04 01:53:27,586 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-04 01:53:27,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 01:53:27,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-04 01:53:27,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-05-04 01:53:27,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:53:27,587 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 01:53:27,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-04 01:53:27,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 01:53:27,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:53:27,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:53:27,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:53:27,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 01:53:27,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:53:27,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:53:27,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:53:27,857 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 01:53:27,857 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 01:53:27,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 01:53:27,858 INFO L82 PathProgramCache]: Analyzing trace with hash 433211555, now seen corresponding path program 3 times [2021-05-04 01:53:27,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 01:53:27,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218940052] [2021-05-04 01:53:27,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 01:53:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 01:53:28,167 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:53:28,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218940052] [2021-05-04 01:53:28,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056690642] [2021-05-04 01:53:28,168 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 01:53:28,197 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-05-04 01:53:28,197 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-04 01:53:28,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 22 conjunts are in the unsatisfiable core [2021-05-04 01:53:28,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 01:53:28,419 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:53:28,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 27 [2021-05-04 01:53:28,433 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 01:53:28,442 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:53:28,447 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-04 01:53:28,448 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:16 [2021-05-04 01:53:28,605 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:53:28,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 38 [2021-05-04 01:53:28,661 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-05-04 01:53:28,670 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:53:28,679 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-04 01:53:28,679 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:21 [2021-05-04 01:53:28,763 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:53:28,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 01:53:28,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 27 [2021-05-04 01:53:28,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086046750] [2021-05-04 01:53:28,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-04 01:53:28,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 01:53:28,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-04 01:53:28,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=624, Unknown=0, NotChecked=0, Total=756 [2021-05-04 01:53:28,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:53:28,765 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 01:53:28,765 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.107142857142857) internal successors, (59), 27 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-04 01:53:28,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 01:53:28,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:53:28,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:53:28,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:53:28,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:53:29,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 01:53:29,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:53:29,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:53:29,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:53:29,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:53:29,653 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 01:53:29,653 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 01:53:29,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 01:53:29,654 INFO L82 PathProgramCache]: Analyzing trace with hash -1322225280, now seen corresponding path program 4 times [2021-05-04 01:53:29,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 01:53:29,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550121093] [2021-05-04 01:53:29,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 01:53:29,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 01:53:29,739 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:53:29,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550121093] [2021-05-04 01:53:29,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869162805] [2021-05-04 01:53:29,739 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 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 [2021-05-04 01:53:29,768 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-04 01:53:29,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-04 01:53:29,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjunts are in the unsatisfiable core [2021-05-04 01:53:29,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 01:53:29,856 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:53:29,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 01:53:29,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 8 [2021-05-04 01:53:29,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495894590] [2021-05-04 01:53:29,856 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-04 01:53:29,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 01:53:29,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-04 01:53:29,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-05-04 01:53:29,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:53:29,857 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 01:53:29,857 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 8 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) [2021-05-04 01:53:29,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 01:53:29,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:53:29,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:53:29,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:53:29,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:53:29,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:53:29,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 01:53:29,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:53:29,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:53:29,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:53:29,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:53:29,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-04 01:53:30,124 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 01:53:30,124 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 01:53:30,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 01:53:30,125 INFO L82 PathProgramCache]: Analyzing trace with hash -956349590, now seen corresponding path program 5 times [2021-05-04 01:53:30,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 01:53:30,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679315594] [2021-05-04 01:53:30,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 01:53:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 01:53:30,509 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:53:30,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679315594] [2021-05-04 01:53:30,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045958012] [2021-05-04 01:53:30,509 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-05-04 01:53:30,537 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-05-04 01:53:30,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-04 01:53:30,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 34 conjunts are in the unsatisfiable core [2021-05-04 01:53:30,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 01:53:30,982 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:53:30,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 53 [2021-05-04 01:53:31,002 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 01:53:31,037 INFO L628 ElimStorePlain]: treesize reduction 43, result has 62.3 percent of original size [2021-05-04 01:53:31,048 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-04 01:53:31,049 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:56, output treesize:39 [2021-05-04 01:53:31,871 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-05-04 01:53:32,106 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-05-04 01:53:32,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:32,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:32,185 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:53:32,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:32,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:32,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:32,188 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:53:32,190 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:53:32,192 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:53:32,193 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 0 case distinctions, treesize of input 33 treesize of output 13 [2021-05-04 01:53:32,199 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 01:53:32,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:32,203 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:53:32,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:32,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:32,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:32,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:32,206 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:53:32,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:32,207 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:53:32,208 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:53:32,211 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:53:32,212 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:53:32,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 1 [2021-05-04 01:53:32,214 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-04 01:53:32,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:32,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:32,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:32,218 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:53:32,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:32,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:32,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:32,221 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:53:32,221 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:53:32,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 16 [2021-05-04 01:53:32,225 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-04 01:53:32,230 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:53:32,232 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-04 01:53:32,232 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:147, output treesize:5 [2021-05-04 01:53:32,242 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:53:32,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 01:53:32,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20] total 40 [2021-05-04 01:53:32,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781845621] [2021-05-04 01:53:32,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-05-04 01:53:32,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 01:53:32,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-05-04 01:53:32,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1470, Unknown=0, NotChecked=0, Total=1640 [2021-05-04 01:53:32,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:53:32,244 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 01:53:32,244 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 1.829268292682927) internal successors, (75), 40 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-04 01:53:32,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 01:53:32,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:53:32,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:53:32,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:53:32,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:53:32,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-05-04 01:53:32,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:53:33,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 01:53:33,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:53:33,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:53:33,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:53:33,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:53:33,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-04 01:53:33,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-05-04 01:53:33,608 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 01:53:33,608 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 01:53:33,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 01:53:33,608 INFO L82 PathProgramCache]: Analyzing trace with hash -2001574371, now seen corresponding path program 6 times [2021-05-04 01:53:33,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 01:53:33,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634292512] [2021-05-04 01:53:33,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 01:53:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 01:53:34,212 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:53:34,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634292512] [2021-05-04 01:53:34,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094790195] [2021-05-04 01:53:34,213 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 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 [2021-05-04 01:53:34,244 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-05-04 01:53:34,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-04 01:53:34,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 48 conjunts are in the unsatisfiable core [2021-05-04 01:53:34,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 01:53:34,815 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:53:34,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 87 [2021-05-04 01:53:34,825 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 01:53:34,902 INFO L628 ElimStorePlain]: treesize reduction 75, result has 63.9 percent of original size [2021-05-04 01:53:34,911 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-04 01:53:34,912 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:72, output treesize:68 [2021-05-04 01:53:35,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:35,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:35,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:35,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:35,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:35,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:35,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:35,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:35,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:35,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:35,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:35,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:35,918 INFO L354 Elim1Store]: treesize reduction 52, result has 45.3 percent of original size [2021-05-04 01:53:35,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 53 treesize of output 61 [2021-05-04 01:53:35,935 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 01:53:35,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:35,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:35,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:35,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:35,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:35,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:35,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:35,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:35,995 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:53:35,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 44 treesize of output 88 [2021-05-04 01:53:36,071 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 4 xjuncts. [2021-05-04 01:53:36,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:36,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:36,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:36,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:36,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:36,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:36,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:36,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:36,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:36,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:36,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:36,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:36,131 INFO L354 Elim1Store]: treesize reduction 50, result has 47.4 percent of original size [2021-05-04 01:53:36,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 55 treesize of output 63 [2021-05-04 01:53:36,144 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-04 01:53:36,254 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2021-05-04 01:53:36,254 INFO L628 ElimStorePlain]: treesize reduction 90, result has 58.3 percent of original size [2021-05-04 01:53:36,273 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-05-04 01:53:36,273 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:208, output treesize:63 [2021-05-04 01:53:36,368 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:53:36,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 01:53:36,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 27] total 52 [2021-05-04 01:53:36,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538143550] [2021-05-04 01:53:36,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 53 states [2021-05-04 01:53:36,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 01:53:36,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-05-04 01:53:36,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=2457, Unknown=0, NotChecked=0, Total=2756 [2021-05-04 01:53:36,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:53:36,370 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 01:53:36,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 53 states, 53 states have (on average 1.7735849056603774) internal successors, (94), 52 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-04 01:53:36,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 01:53:36,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:53:36,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:53:36,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:53:36,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:53:36,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-05-04 01:53:36,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-05-04 01:53:36,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:53:38,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 01:53:38,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:53:38,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:53:38,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:53:38,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:53:38,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-04 01:53:38,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-05-04 01:53:38,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-04 01:53:38,239 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 01:53:38,239 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 01:53:38,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 01:53:38,239 INFO L82 PathProgramCache]: Analyzing trace with hash -448058012, now seen corresponding path program 7 times [2021-05-04 01:53:38,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 01:53:38,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669552553] [2021-05-04 01:53:38,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 01:53:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 01:53:39,288 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:53:39,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669552553] [2021-05-04 01:53:39,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777427618] [2021-05-04 01:53:39,289 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 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 [2021-05-04 01:53:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 01:53:39,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 59 conjunts are in the unsatisfiable core [2021-05-04 01:53:39,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 01:53:40,178 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:53:40,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 77 treesize of output 129 [2021-05-04 01:53:40,195 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 01:53:40,321 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 71 [2021-05-04 01:53:40,321 INFO L628 ElimStorePlain]: treesize reduction 134, result has 60.6 percent of original size [2021-05-04 01:53:40,355 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-04 01:53:40,355 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:88, output treesize:79 [2021-05-04 01:53:41,016 INFO L354 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2021-05-04 01:53:41,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 55 treesize of output 19 [2021-05-04 01:53:41,018 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 01:53:41,021 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:53:41,021 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-04 01:53:41,022 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:56, output treesize:5 [2021-05-04 01:53:41,031 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:53:41,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 01:53:41,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 32] total 62 [2021-05-04 01:53:41,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651922339] [2021-05-04 01:53:41,032 INFO L460 AbstractCegarLoop]: Interpolant automaton has 63 states [2021-05-04 01:53:41,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 01:53:41,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-05-04 01:53:41,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=408, Invalid=3498, Unknown=0, NotChecked=0, Total=3906 [2021-05-04 01:53:41,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:53:41,033 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 01:53:41,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 63 states, 63 states have (on average 1.6349206349206349) internal successors, (103), 62 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-04 01:53:41,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 01:53:41,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:53:41,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:53:41,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:53:41,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:53:41,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-05-04 01:53:41,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-05-04 01:53:41,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-05-04 01:53:41,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:53:42,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 01:53:42,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:53:42,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:53:42,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:53:42,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:53:42,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-04 01:53:42,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-05-04 01:53:42,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-04 01:53:42,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-04 01:53:42,787 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable109 [2021-05-04 01:53:42,787 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 01:53:42,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 01:53:42,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1741222463, now seen corresponding path program 8 times [2021-05-04 01:53:42,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 01:53:42,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361530135] [2021-05-04 01:53:42,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 01:53:42,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 01:53:42,887 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 66 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:53:42,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361530135] [2021-05-04 01:53:42,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687846799] [2021-05-04 01:53:42,888 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 01:53:42,919 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-04 01:53:42,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-04 01:53:42,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 12 conjunts are in the unsatisfiable core [2021-05-04 01:53:42,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 01:53:43,008 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 66 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:53:43,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 01:53:43,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7] total 14 [2021-05-04 01:53:43,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256058594] [2021-05-04 01:53:43,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-04 01:53:43,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 01:53:43,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-04 01:53:43,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2021-05-04 01:53:43,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:53:43,009 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 01:53:43,009 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 6.466666666666667) internal successors, (97), 14 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-04 01:53:43,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 01:53:43,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:53:43,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:53:43,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:53:43,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:53:43,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-05-04 01:53:43,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-05-04 01:53:43,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-05-04 01:53:43,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-05-04 01:53:43,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:53:43,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 01:53:43,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:53:43,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:53:43,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:53:43,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:53:43,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-04 01:53:43,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-05-04 01:53:43,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-04 01:53:43,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-04 01:53:43,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-04 01:53:43,289 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable133 [2021-05-04 01:53:43,290 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 01:53:43,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 01:53:43,290 INFO L82 PathProgramCache]: Analyzing trace with hash 398350743, now seen corresponding path program 9 times [2021-05-04 01:53:43,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 01:53:43,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304715752] [2021-05-04 01:53:43,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 01:53:43,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 01:53:44,511 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:53:44,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304715752] [2021-05-04 01:53:44,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687958472] [2021-05-04 01:53:44,511 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 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 [2021-05-04 01:53:44,558 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-05-04 01:53:44,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-04 01:53:44,560 WARN L261 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 72 conjunts are in the unsatisfiable core [2021-05-04 01:53:44,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 01:53:45,999 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:53:45,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 93 treesize of output 179 [2021-05-04 01:53:46,021 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 01:53:46,237 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 100 [2021-05-04 01:53:46,238 INFO L628 ElimStorePlain]: treesize reduction 168, result has 65.4 percent of original size [2021-05-04 01:53:46,281 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-04 01:53:46,281 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:104, output treesize:117 [2021-05-04 01:53:47,725 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-05-04 01:53:48,473 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-04 01:53:48,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:48,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:48,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:48,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:48,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:48,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:48,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:48,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:48,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:48,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:48,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:48,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:48,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:48,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:48,810 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:53:48,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:48,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:48,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:48,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:48,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:48,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:48,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:48,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:48,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:48,845 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 01:53:48,950 INFO L354 Elim1Store]: treesize reduction 52, result has 66.9 percent of original size [2021-05-04 01:53:48,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 22 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 17 case distinctions, treesize of input 77 treesize of output 129 [2021-05-04 01:53:49,152 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 01:53:49,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,318 INFO L354 Elim1Store]: treesize reduction 114, result has 44.4 percent of original size [2021-05-04 01:53:49,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 27 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 18 case distinctions, treesize of input 79 treesize of output 115 [2021-05-04 01:53:49,373 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-04 01:53:49,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,508 INFO L354 Elim1Store]: treesize reduction 104, result has 38.5 percent of original size [2021-05-04 01:53:49,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 21 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 15 case distinctions, treesize of input 79 treesize of output 89 [2021-05-04 01:53:49,524 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-04 01:53:49,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 01:53:49,607 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:53:49,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 17 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 11 case distinctions, treesize of input 68 treesize of output 142 [2021-05-04 01:53:50,464 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 3 xjuncts. [2021-05-04 01:53:50,839 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 64 [2021-05-04 01:53:50,840 INFO L628 ElimStorePlain]: treesize reduction 506, result has 29.4 percent of original size [2021-05-04 01:53:50,878 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: and 6 xjuncts. [2021-05-04 01:53:50,878 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:377, output treesize:118 [2021-05-04 01:53:51,033 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:53:51,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 01:53:51,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 39] total 78 [2021-05-04 01:53:51,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807426697] [2021-05-04 01:53:51,034 INFO L460 AbstractCegarLoop]: Interpolant automaton has 79 states [2021-05-04 01:53:51,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 01:53:51,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2021-05-04 01:53:51,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=573, Invalid=5589, Unknown=0, NotChecked=0, Total=6162 [2021-05-04 01:53:51,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:53:51,035 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 01:53:51,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 79 states, 79 states have (on average 1.6455696202531647) internal successors, (130), 78 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-04 01:53:51,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 01:53:51,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:53:51,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:53:51,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:53:51,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:53:51,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-05-04 01:53:51,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-05-04 01:53:51,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-05-04 01:53:51,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-05-04 01:53:51,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-05-04 01:53:51,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:53:54,913 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-05-04 01:53:56,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 01:53:56,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:53:56,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:53:56,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:53:56,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:53:56,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-04 01:53:56,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-05-04 01:53:56,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-04 01:53:56,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-04 01:53:56,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-04 01:53:56,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-05-04 01:53:56,918 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable134 [2021-05-04 01:53:56,919 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 01:53:56,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 01:53:56,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1981510306, now seen corresponding path program 10 times [2021-05-04 01:53:56,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 01:53:56,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936906208] [2021-05-04 01:53:56,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 01:53:56,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 01:53:58,619 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:53:58,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936906208] [2021-05-04 01:53:58,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828740261] [2021-05-04 01:53:58,620 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 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 [2021-05-04 01:53:58,655 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-04 01:53:58,655 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-04 01:53:58,657 WARN L261 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 83 conjunts are in the unsatisfiable core [2021-05-04 01:53:58,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 01:54:03,364 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-05-04 01:54:03,364 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:54:03,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 109 treesize of output 237 [2021-05-04 01:54:03,406 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 01:54:03,721 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 124 [2021-05-04 01:54:03,722 INFO L628 ElimStorePlain]: treesize reduction 294, result has 58.0 percent of original size [2021-05-04 01:54:03,819 INFO L550 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-04 01:54:03,819 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 9 variables, input treesize:120, output treesize:105 [2021-05-04 01:54:05,367 INFO L354 Elim1Store]: treesize reduction 240, result has 0.4 percent of original size [2021-05-04 01:54:05,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 77 treesize of output 25 [2021-05-04 01:54:05,369 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 01:54:05,372 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 01:54:05,373 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-04 01:54:05,373 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:78, output treesize:5 [2021-05-04 01:54:05,383 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 01:54:05,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 01:54:05,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 44] total 88 [2021-05-04 01:54:05,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68349202] [2021-05-04 01:54:05,384 INFO L460 AbstractCegarLoop]: Interpolant automaton has 89 states [2021-05-04 01:54:05,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 01:54:05,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2021-05-04 01:54:05,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=697, Invalid=7135, Unknown=0, NotChecked=0, Total=7832 [2021-05-04 01:54:05,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:54:05,386 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 01:54:05,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 89 states, 89 states have (on average 1.5617977528089888) internal successors, (139), 88 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-04 01:54:05,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 01:54:05,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 01:54:05,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-04 01:54:05,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-04 01:54:05,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-05-04 01:54:05,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-05-04 01:54:05,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-05-04 01:54:05,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-05-04 01:54:05,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-05-04 01:54:05,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-05-04 01:54:05,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-05-04 01:54:05,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 01:54:08,509 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-05-04 01:54:27,412 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-05-04 01:54:27,613 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable739,12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 01:54:27,614 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:226) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:153) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkValidity(IncrementalHoareTripleChecker.java:676) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:143) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ProtectiveHoareTripleChecker.checkInternal(ProtectiveHoareTripleChecker.java:61) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.EfficientHoareTripleChecker.checkInternal(EfficientHoareTripleChecker.java:63) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:357) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.visitState(DepthFirstTraversal.java:153) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.traverse(DepthFirstTraversal.java:104) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.(DepthFirstTraversal.java:79) at de.uni_freiburg.informatik.ultimate.automata.partialorder.PersistentSetReduction.applyWithoutSleepSets(PersistentSetReduction.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isAbstractionEmpty(PartialOrderCegarLoop.java:218) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:507) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) ... 42 more [2021-05-04 01:54:27,618 INFO L168 Benchmark]: Toolchain (without parser) took 61857.21 ms. Allocated memory was 318.8 MB in the beginning and 486.5 MB in the end (delta: 167.8 MB). Free memory was 298.2 MB in the beginning and 390.6 MB in the end (delta: -92.5 MB). Peak memory consumption was 77.2 MB. Max. memory is 16.0 GB. [2021-05-04 01:54:27,618 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 318.8 MB. Free memory was 299.3 MB in the beginning and 299.2 MB in the end (delta: 85.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-04 01:54:27,618 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.76 ms. Allocated memory is still 318.8 MB. Free memory was 298.1 MB in the beginning and 296.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-04 01:54:27,618 INFO L168 Benchmark]: Boogie Preprocessor took 12.78 ms. Allocated memory is still 318.8 MB. Free memory was 296.6 MB in the beginning and 295.7 MB in the end (delta: 888.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-04 01:54:27,618 INFO L168 Benchmark]: RCFGBuilder took 192.29 ms. Allocated memory is still 318.8 MB. Free memory was 295.6 MB in the beginning and 283.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-05-04 01:54:27,618 INFO L168 Benchmark]: TraceAbstraction took 61617.98 ms. Allocated memory was 318.8 MB in the beginning and 486.5 MB in the end (delta: 167.8 MB). Free memory was 282.6 MB in the beginning and 390.6 MB in the end (delta: -108.1 MB). Peak memory consumption was 62.6 MB. Max. memory is 16.0 GB. [2021-05-04 01:54:27,619 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 318.8 MB. Free memory was 299.3 MB in the beginning and 299.2 MB in the end (delta: 85.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 19.76 ms. Allocated memory is still 318.8 MB. Free memory was 298.1 MB in the beginning and 296.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.78 ms. Allocated memory is still 318.8 MB. Free memory was 296.6 MB in the beginning and 295.7 MB in the end (delta: 888.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 192.29 ms. Allocated memory is still 318.8 MB. Free memory was 295.6 MB in the beginning and 283.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 61617.98 ms. Allocated memory was 318.8 MB in the beginning and 486.5 MB in the end (delta: 167.8 MB). Free memory was 282.6 MB in the beginning and 390.6 MB in the end (delta: -108.1 MB). Peak memory consumption was 62.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...