/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 19:39:19,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 19:39:19,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 19:39:19,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 19:39:19,497 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 19:39:19,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 19:39:19,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 19:39:19,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 19:39:19,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 19:39:19,516 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 19:39:19,517 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 19:39:19,518 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 19:39:19,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 19:39:19,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 19:39:19,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 19:39:19,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 19:39:19,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 19:39:19,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 19:39:19,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 19:39:19,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 19:39:19,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 19:39:19,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 19:39:19,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 19:39:19,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 19:39:19,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 19:39:19,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 19:39:19,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 19:39:19,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 19:39:19,554 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 19:39:19,555 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 19:39:19,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 19:39:19,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 19:39:19,559 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 19:39:19,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 19:39:19,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 19:39:19,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 19:39:19,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 19:39:19,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 19:39:19,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 19:39:19,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 19:39:19,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 19:39:19,564 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 19:39:19,584 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 19:39:19,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 19:39:19,586 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 19:39:19,586 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 19:39:19,586 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 19:39:19,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 19:39:19,587 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 19:39:19,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 19:39:19,587 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 19:39:19,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 19:39:19,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 19:39:19,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 19:39:19,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 19:39:19,589 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 19:39:19,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 19:39:19,589 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 19:39:19,590 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 19:39:19,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 19:39:19,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 19:39:19,590 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 19:39:19,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 19:39:19,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 19:39:19,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 19:39:19,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 19:39:19,591 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 19:39:19,592 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 19:39:19,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 19:39:19,592 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 19:39:19,592 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 19:39:19,592 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 19:39:19,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 19:39:19,928 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 19:39:19,932 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 19:39:19,933 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 19:39:19,934 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 19:39:19,935 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2020-10-12 19:39:20,010 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/42baf2714/f0ac92bcb7e544beac9d81700c83d41e/FLAG5ccddf268 [2020-10-12 19:39:20,741 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 19:39:20,741 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2020-10-12 19:39:20,769 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/42baf2714/f0ac92bcb7e544beac9d81700c83d41e/FLAG5ccddf268 [2020-10-12 19:39:20,886 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/42baf2714/f0ac92bcb7e544beac9d81700c83d41e [2020-10-12 19:39:20,895 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 19:39:20,898 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 19:39:20,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 19:39:20,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 19:39:20,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 19:39:20,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:39:20" (1/1) ... [2020-10-12 19:39:20,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ef7a733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:20, skipping insertion in model container [2020-10-12 19:39:20,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:39:20" (1/1) ... [2020-10-12 19:39:20,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 19:39:21,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 19:39:22,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:39:22,217 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 19:39:22,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:39:22,723 INFO L208 MainTranslator]: Completed translation [2020-10-12 19:39:22,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:22 WrapperNode [2020-10-12 19:39:22,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 19:39:22,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 19:39:22,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 19:39:22,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 19:39:22,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:22" (1/1) ... [2020-10-12 19:39:22,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:22" (1/1) ... [2020-10-12 19:39:22,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:22" (1/1) ... [2020-10-12 19:39:22,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:22" (1/1) ... [2020-10-12 19:39:22,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:22" (1/1) ... [2020-10-12 19:39:22,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:22" (1/1) ... [2020-10-12 19:39:22,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:22" (1/1) ... [2020-10-12 19:39:22,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 19:39:22,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 19:39:22,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 19:39:22,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 19:39:22,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:22" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-12 19:39:23,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 19:39:23,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 19:39:23,060 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 19:39:23,060 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 19:39:23,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 19:39:23,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 19:39:23,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 19:39:23,061 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 19:39:23,062 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 19:39:23,062 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 19:39:23,062 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 19:39:23,062 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 19:39:23,062 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 19:39:23,063 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 19:39:23,063 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 19:39:23,063 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 19:39:23,063 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-12 19:39:23,064 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 19:39:23,064 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 19:39:23,064 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 19:39:23,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 19:39:23,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 19:39:26,523 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 19:39:26,524 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-12 19:39:26,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:39:26 BoogieIcfgContainer [2020-10-12 19:39:26,538 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 19:39:26,539 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 19:39:26,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 19:39:26,543 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 19:39:26,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:39:20" (1/3) ... [2020-10-12 19:39:26,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ba6fd46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:39:26, skipping insertion in model container [2020-10-12 19:39:26,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:22" (2/3) ... [2020-10-12 19:39:26,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ba6fd46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:39:26, skipping insertion in model container [2020-10-12 19:39:26,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:39:26" (3/3) ... [2020-10-12 19:39:26,546 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2020-10-12 19:39:26,557 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 19:39:26,568 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-10-12 19:39:26,582 INFO L251 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-10-12 19:39:26,611 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 19:39:26,611 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 19:39:26,612 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 19:39:26,612 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 19:39:26,612 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 19:39:26,612 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 19:39:26,612 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 19:39:26,612 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 19:39:26,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states. [2020-10-12 19:39:26,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 19:39:26,677 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:39:26,678 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:39:26,679 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:39:26,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:39:26,685 INFO L82 PathProgramCache]: Analyzing trace with hash 552165333, now seen corresponding path program 1 times [2020-10-12 19:39:26,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:39:26,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1063160411] [2020-10-12 19:39:26,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:39:27,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:39:27,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:27,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:27,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:28,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:29,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:30,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:30,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:31,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:32,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:39:32,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 19:39:32,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 19:39:32,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-12 19:39:32,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:39:32,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 19:39:32,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:39:32,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 19:39:32,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 19:39:34,248 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-12 19:39:34,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:39:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:39:34,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:34,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:39:34,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:39:34,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:39:34,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 19:39:34,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:39:34,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:39:34,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:39:34,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:39:34,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:39:34,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:39:34,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1063160411] [2020-10-12 19:39:34,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:39:34,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 19:39:34,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862800121] [2020-10-12 19:39:34,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 19:39:34,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:39:34,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 19:39:34,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-12 19:39:34,399 INFO L87 Difference]: Start difference. First operand 1198 states. Second operand 9 states. [2020-10-12 19:39:36,245 WARN L193 SmtUtils]: Spent 1.72 s on a formula simplification that was a NOOP. DAG size: 566 [2020-10-12 19:39:48,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:39:48,321 INFO L93 Difference]: Finished difference Result 1635 states and 2747 transitions. [2020-10-12 19:39:48,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 19:39:48,327 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 77 [2020-10-12 19:39:48,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:39:48,355 INFO L225 Difference]: With dead ends: 1635 [2020-10-12 19:39:48,355 INFO L226 Difference]: Without dead ends: 1591 [2020-10-12 19:39:48,360 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:39:48,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1591 states. [2020-10-12 19:39:48,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1591 to 1192. [2020-10-12 19:39:48,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1192 states. [2020-10-12 19:39:48,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1488 transitions. [2020-10-12 19:39:48,493 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1488 transitions. Word has length 77 [2020-10-12 19:39:48,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:39:48,494 INFO L479 AbstractCegarLoop]: Abstraction has 1192 states and 1488 transitions. [2020-10-12 19:39:48,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 19:39:48,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1488 transitions. [2020-10-12 19:39:48,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 19:39:48,500 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:39:48,500 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:39:48,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 19:39:48,501 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:39:48,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:39:48,502 INFO L82 PathProgramCache]: Analyzing trace with hash 102514571, now seen corresponding path program 1 times [2020-10-12 19:39:48,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:39:48,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [167577817] [2020-10-12 19:39:48,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:39:48,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:39:48,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:48,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:48,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:49,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:50,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:50,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:51,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:51,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:52,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:53,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:53,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:39:53,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 19:39:53,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 19:39:53,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-12 19:39:53,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:39:53,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:39:53,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:39:53,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 19:39:53,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-12 19:39:55,281 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-12 19:39:55,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:39:55,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:39:55,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:55,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:39:55,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:39:55,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:39:55,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 19:39:55,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:39:55,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:39:55,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:39:55,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:39:55,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:39:55,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:39:55,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [167577817] [2020-10-12 19:39:55,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:39:55,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:39:55,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348410904] [2020-10-12 19:39:55,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:39:55,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:39:55,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:39:55,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:39:55,438 INFO L87 Difference]: Start difference. First operand 1192 states and 1488 transitions. Second operand 12 states. [2020-10-12 19:39:58,389 WARN L193 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 576 DAG size of output: 574 [2020-10-12 19:40:08,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:40:08,750 INFO L93 Difference]: Finished difference Result 2675 states and 3443 transitions. [2020-10-12 19:40:08,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 19:40:08,754 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 77 [2020-10-12 19:40:08,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:40:08,764 INFO L225 Difference]: With dead ends: 2675 [2020-10-12 19:40:08,764 INFO L226 Difference]: Without dead ends: 2047 [2020-10-12 19:40:08,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2020-10-12 19:40:08,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2020-10-12 19:40:08,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 1245. [2020-10-12 19:40:08,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1245 states. [2020-10-12 19:40:08,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1620 transitions. [2020-10-12 19:40:08,839 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1620 transitions. Word has length 77 [2020-10-12 19:40:08,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:40:08,840 INFO L479 AbstractCegarLoop]: Abstraction has 1245 states and 1620 transitions. [2020-10-12 19:40:08,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:40:08,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1620 transitions. [2020-10-12 19:40:08,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 19:40:08,844 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:40:08,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:40:08,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 19:40:08,844 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:40:08,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:40:08,845 INFO L82 PathProgramCache]: Analyzing trace with hash 2047106506, now seen corresponding path program 1 times [2020-10-12 19:40:08,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:40:08,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1458561235] [2020-10-12 19:40:08,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:40:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:40:08,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:09,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:09,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:09,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:10,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:13,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:40:13,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 19:40:13,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 19:40:13,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-12 19:40:13,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:40:13,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 19:40:13,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:40:13,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 19:40:13,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:40:15,483 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-12 19:40:15,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:40:15,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:40:15,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:15,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:40:15,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:40:15,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:40:15,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 19:40:15,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:40:15,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:40:15,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:40:15,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:40:15,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:40:15,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:40:15,575 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1458561235] [2020-10-12 19:40:15,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:40:15,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 19:40:15,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902156166] [2020-10-12 19:40:15,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 19:40:15,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:40:15,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 19:40:15,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-12 19:40:15,577 INFO L87 Difference]: Start difference. First operand 1245 states and 1620 transitions. Second operand 8 states. [2020-10-12 19:40:16,993 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 569 [2020-10-12 19:40:24,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:40:24,396 INFO L93 Difference]: Finished difference Result 2079 states and 2798 transitions. [2020-10-12 19:40:24,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 19:40:24,397 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 77 [2020-10-12 19:40:24,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:40:24,408 INFO L225 Difference]: With dead ends: 2079 [2020-10-12 19:40:24,408 INFO L226 Difference]: Without dead ends: 2044 [2020-10-12 19:40:24,409 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-12 19:40:24,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2044 states. [2020-10-12 19:40:24,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2044 to 1234. [2020-10-12 19:40:24,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1234 states. [2020-10-12 19:40:24,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 1234 states and 1605 transitions. [2020-10-12 19:40:24,492 INFO L78 Accepts]: Start accepts. Automaton has 1234 states and 1605 transitions. Word has length 77 [2020-10-12 19:40:24,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:40:24,493 INFO L479 AbstractCegarLoop]: Abstraction has 1234 states and 1605 transitions. [2020-10-12 19:40:24,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 19:40:24,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1234 states and 1605 transitions. [2020-10-12 19:40:24,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 19:40:24,497 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:40:24,498 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:40:24,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 19:40:24,502 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:40:24,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:40:24,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1772839881, now seen corresponding path program 1 times [2020-10-12 19:40:24,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:40:24,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1441810046] [2020-10-12 19:40:24,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:40:24,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:40:24,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:24,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:24,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:24,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:24,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:25,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:25,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:29,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:40:29,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 19:40:29,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 19:40:29,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 19:40:29,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:40:29,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:40:29,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 19:40:29,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 19:40:29,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:40:31,117 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-12 19:40:31,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:40:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:40:31,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:31,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:40:31,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:40:31,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:40:31,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 19:40:31,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:40:31,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:40:31,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:40:31,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:40:31,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:40:31,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:40:31,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1441810046] [2020-10-12 19:40:31,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:40:31,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 19:40:31,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160475301] [2020-10-12 19:40:31,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 19:40:31,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:40:31,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 19:40:31,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 19:40:31,188 INFO L87 Difference]: Start difference. First operand 1234 states and 1605 transitions. Second operand 7 states. [2020-10-12 19:40:32,530 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 563 [2020-10-12 19:40:39,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:40:39,446 INFO L93 Difference]: Finished difference Result 3195 states and 4272 transitions. [2020-10-12 19:40:39,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 19:40:39,448 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2020-10-12 19:40:39,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:40:39,485 INFO L225 Difference]: With dead ends: 3195 [2020-10-12 19:40:39,486 INFO L226 Difference]: Without dead ends: 2863 [2020-10-12 19:40:39,487 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:40:39,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2863 states. [2020-10-12 19:40:39,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2863 to 1647. [2020-10-12 19:40:39,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1647 states. [2020-10-12 19:40:39,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1647 states to 1647 states and 2213 transitions. [2020-10-12 19:40:39,599 INFO L78 Accepts]: Start accepts. Automaton has 1647 states and 2213 transitions. Word has length 77 [2020-10-12 19:40:39,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:40:39,600 INFO L479 AbstractCegarLoop]: Abstraction has 1647 states and 2213 transitions. [2020-10-12 19:40:39,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 19:40:39,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1647 states and 2213 transitions. [2020-10-12 19:40:39,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 19:40:39,603 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:40:39,603 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:40:39,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 19:40:39,604 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:40:39,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:40:39,604 INFO L82 PathProgramCache]: Analyzing trace with hash -663106744, now seen corresponding path program 1 times [2020-10-12 19:40:39,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:40:39,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1166405899] [2020-10-12 19:40:39,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:40:39,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:40:39,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:39,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:39,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:39,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:40,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:40,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:43,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:44,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:44,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:40:44,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 19:40:44,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 19:40:44,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-12 19:40:44,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:40:44,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 19:40:44,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:40:44,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 19:40:44,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 19:40:46,708 WARN L193 SmtUtils]: Spent 1.70 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-12 19:40:46,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:40:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:40:46,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:46,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:40:46,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:40:46,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:40:46,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 19:40:46,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:40:46,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:40:46,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:40:46,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:40:46,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:40:46,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:40:46,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1166405899] [2020-10-12 19:40:46,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:40:46,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 19:40:46,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288657667] [2020-10-12 19:40:46,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 19:40:46,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:40:46,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 19:40:46,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-12 19:40:46,799 INFO L87 Difference]: Start difference. First operand 1647 states and 2213 transitions. Second operand 9 states. [2020-10-12 19:40:48,216 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 566 [2020-10-12 19:40:54,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:40:54,682 INFO L93 Difference]: Finished difference Result 2074 states and 2778 transitions. [2020-10-12 19:40:54,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 19:40:54,683 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 77 [2020-10-12 19:40:54,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:40:54,693 INFO L225 Difference]: With dead ends: 2074 [2020-10-12 19:40:54,693 INFO L226 Difference]: Without dead ends: 2051 [2020-10-12 19:40:54,694 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2020-10-12 19:40:54,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2051 states. [2020-10-12 19:40:54,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2051 to 1645. [2020-10-12 19:40:54,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1645 states. [2020-10-12 19:40:54,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 2209 transitions. [2020-10-12 19:40:54,810 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 2209 transitions. Word has length 77 [2020-10-12 19:40:54,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:40:54,811 INFO L479 AbstractCegarLoop]: Abstraction has 1645 states and 2209 transitions. [2020-10-12 19:40:54,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 19:40:54,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 2209 transitions. [2020-10-12 19:40:54,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-12 19:40:54,815 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:40:54,815 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:40:54,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 19:40:54,815 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:40:54,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:40:54,816 INFO L82 PathProgramCache]: Analyzing trace with hash 862801551, now seen corresponding path program 1 times [2020-10-12 19:40:54,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:40:54,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1332977464] [2020-10-12 19:40:54,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:40:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:40:54,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:54,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:54,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:55,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:55,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:55,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:55,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:59,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:40:59,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 19:40:59,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 19:40:59,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-12 19:40:59,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:40:59,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 19:40:59,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:40:59,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 19:40:59,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:41:01,391 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-12 19:41:01,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:41:01,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:41:01,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:01,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:41:01,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:41:01,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:41:01,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 19:41:01,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:41:01,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:41:01,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:41:01,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:41:01,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:41:01,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:41:01,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1332977464] [2020-10-12 19:41:01,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:41:01,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:41:01,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530268383] [2020-10-12 19:41:01,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:41:01,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:41:01,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:41:01,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:41:01,447 INFO L87 Difference]: Start difference. First operand 1645 states and 2209 transitions. Second operand 11 states. [2020-10-12 19:41:02,923 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 571 [2020-10-12 19:41:10,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:41:10,927 INFO L93 Difference]: Finished difference Result 3141 states and 4243 transitions. [2020-10-12 19:41:10,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 19:41:10,929 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 79 [2020-10-12 19:41:10,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:41:10,939 INFO L225 Difference]: With dead ends: 3141 [2020-10-12 19:41:10,940 INFO L226 Difference]: Without dead ends: 2654 [2020-10-12 19:41:10,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=198, Invalid=672, Unknown=0, NotChecked=0, Total=870 [2020-10-12 19:41:10,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2654 states. [2020-10-12 19:41:11,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2654 to 1645. [2020-10-12 19:41:11,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1645 states. [2020-10-12 19:41:11,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 2207 transitions. [2020-10-12 19:41:11,072 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 2207 transitions. Word has length 79 [2020-10-12 19:41:11,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:41:11,073 INFO L479 AbstractCegarLoop]: Abstraction has 1645 states and 2207 transitions. [2020-10-12 19:41:11,073 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:41:11,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 2207 transitions. [2020-10-12 19:41:11,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-12 19:41:11,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:41:11,077 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:41:11,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 19:41:11,077 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:41:11,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:41:11,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1787165008, now seen corresponding path program 1 times [2020-10-12 19:41:11,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:41:11,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1342321673] [2020-10-12 19:41:11,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:41:11,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:41:11,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:11,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:11,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:11,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:11,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:12,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:12,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:12,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:13,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:13,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:13,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:14,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:15,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:15,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:16,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:16,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:41:16,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 19:41:16,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-12 19:41:16,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-12 19:41:16,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:41:16,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:41:16,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 19:41:16,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-12 19:41:16,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:41:17,612 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-12 19:41:17,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:41:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:41:17,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:17,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:41:17,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:41:17,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:41:17,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 19:41:17,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:41:17,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:41:17,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:41:17,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:41:17,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:41:17,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:41:17,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1342321673] [2020-10-12 19:41:17,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:41:17,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 19:41:17,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23341237] [2020-10-12 19:41:17,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:41:17,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:41:17,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:41:17,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:41:17,669 INFO L87 Difference]: Start difference. First operand 1645 states and 2207 transitions. Second operand 12 states. [2020-10-12 19:41:19,120 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 563 [2020-10-12 19:41:28,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:41:28,003 INFO L93 Difference]: Finished difference Result 5085 states and 7234 transitions. [2020-10-12 19:41:28,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 19:41:28,004 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 79 [2020-10-12 19:41:28,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:41:28,022 INFO L225 Difference]: With dead ends: 5085 [2020-10-12 19:41:28,022 INFO L226 Difference]: Without dead ends: 5076 [2020-10-12 19:41:28,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=170, Invalid=642, Unknown=0, NotChecked=0, Total=812 [2020-10-12 19:41:28,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5076 states. [2020-10-12 19:41:28,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5076 to 1656. [2020-10-12 19:41:28,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1656 states. [2020-10-12 19:41:28,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1656 states to 1656 states and 2223 transitions. [2020-10-12 19:41:28,194 INFO L78 Accepts]: Start accepts. Automaton has 1656 states and 2223 transitions. Word has length 79 [2020-10-12 19:41:28,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:41:28,194 INFO L479 AbstractCegarLoop]: Abstraction has 1656 states and 2223 transitions. [2020-10-12 19:41:28,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:41:28,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1656 states and 2223 transitions. [2020-10-12 19:41:28,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-12 19:41:28,198 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:41:28,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:41:28,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 19:41:28,199 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:41:28,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:41:28,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1280049369, now seen corresponding path program 1 times [2020-10-12 19:41:28,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:41:28,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [980510693] [2020-10-12 19:41:28,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:41:28,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:41:28,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:28,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:28,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:28,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:29,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:29,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:30,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:30,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:30,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:31,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:32,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:32,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:33,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:41:33,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 19:41:33,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-12 19:41:33,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 19:41:33,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:41:33,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 19:41:33,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:41:33,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-12 19:41:33,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:41:35,118 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-12 19:41:35,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:41:35,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:41:35,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:35,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:41:35,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:41:35,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:41:35,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 19:41:35,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:41:35,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:41:35,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:41:35,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:41:35,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:41:35,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:41:35,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [980510693] [2020-10-12 19:41:35,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:41:35,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-12 19:41:35,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413988474] [2020-10-12 19:41:35,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 19:41:35,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:41:35,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 19:41:35,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-10-12 19:41:35,220 INFO L87 Difference]: Start difference. First operand 1656 states and 2223 transitions. Second operand 15 states. [2020-10-12 19:41:38,364 WARN L193 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 589 DAG size of output: 588 [2020-10-12 19:41:49,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:41:49,691 INFO L93 Difference]: Finished difference Result 3008 states and 4022 transitions. [2020-10-12 19:41:49,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 19:41:49,692 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 79 [2020-10-12 19:41:49,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:41:49,704 INFO L225 Difference]: With dead ends: 3008 [2020-10-12 19:41:49,704 INFO L226 Difference]: Without dead ends: 2983 [2020-10-12 19:41:49,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=336, Invalid=1470, Unknown=0, NotChecked=0, Total=1806 [2020-10-12 19:41:49,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2020-10-12 19:41:49,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 1656. [2020-10-12 19:41:49,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1656 states. [2020-10-12 19:41:49,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1656 states to 1656 states and 2220 transitions. [2020-10-12 19:41:49,843 INFO L78 Accepts]: Start accepts. Automaton has 1656 states and 2220 transitions. Word has length 79 [2020-10-12 19:41:49,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:41:49,843 INFO L479 AbstractCegarLoop]: Abstraction has 1656 states and 2220 transitions. [2020-10-12 19:41:49,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 19:41:49,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1656 states and 2220 transitions. [2020-10-12 19:41:49,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-12 19:41:49,846 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:41:49,847 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:41:49,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 19:41:49,847 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:41:49,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:41:49,848 INFO L82 PathProgramCache]: Analyzing trace with hash -722555383, now seen corresponding path program 1 times [2020-10-12 19:41:49,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:41:49,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [650788982] [2020-10-12 19:41:49,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:41:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:41:49,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:49,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:50,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:50,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:50,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:50,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:51,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:54,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:54,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:54,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:54,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:41:54,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 19:41:54,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 19:41:54,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-12 19:41:54,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:41:54,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:41:54,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:41:54,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 19:41:54,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:41:56,475 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-12 19:41:56,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:41:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:41:56,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:56,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:41:56,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:41:56,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:41:56,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 19:41:56,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:41:56,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:41:56,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:41:56,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:41:56,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:41:56,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:41:56,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [650788982] [2020-10-12 19:41:56,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:41:56,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 19:41:56,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821968868] [2020-10-12 19:41:56,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:41:56,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:41:56,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:41:56,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:41:56,532 INFO L87 Difference]: Start difference. First operand 1656 states and 2220 transitions. Second operand 12 states. [2020-10-12 19:41:58,019 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 568 [2020-10-12 19:42:07,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:42:07,258 INFO L93 Difference]: Finished difference Result 5028 states and 7017 transitions. [2020-10-12 19:42:07,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 19:42:07,258 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 79 [2020-10-12 19:42:07,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:42:07,280 INFO L225 Difference]: With dead ends: 5028 [2020-10-12 19:42:07,280 INFO L226 Difference]: Without dead ends: 4756 [2020-10-12 19:42:07,283 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2020-10-12 19:42:07,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4756 states. [2020-10-12 19:42:07,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4756 to 1668. [2020-10-12 19:42:07,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1668 states. [2020-10-12 19:42:07,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 2237 transitions. [2020-10-12 19:42:07,476 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 2237 transitions. Word has length 79 [2020-10-12 19:42:07,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:42:07,477 INFO L479 AbstractCegarLoop]: Abstraction has 1668 states and 2237 transitions. [2020-10-12 19:42:07,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:42:07,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 2237 transitions. [2020-10-12 19:42:07,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-12 19:42:07,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:42:07,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:42:07,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 19:42:07,482 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:42:07,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:42:07,482 INFO L82 PathProgramCache]: Analyzing trace with hash -307942222, now seen corresponding path program 1 times [2020-10-12 19:42:07,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:42:07,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1043785607] [2020-10-12 19:42:07,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:42:07,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:42:07,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:07,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:07,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:08,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:08,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:08,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:08,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:08,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:08,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:11,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:11,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:12,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:12,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:42:12,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 19:42:12,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-12 19:42:12,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 19:42:12,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:42:12,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 19:42:12,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:42:12,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 19:42:12,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 19:42:14,250 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-12 19:42:14,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:42:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:42:14,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:14,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:42:14,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:42:14,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:42:14,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 19:42:14,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:42:14,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:42:14,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:42:14,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:42:14,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:42:14,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:42:14,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1043785607] [2020-10-12 19:42:14,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:42:14,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 19:42:14,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543744434] [2020-10-12 19:42:14,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 19:42:14,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:42:14,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 19:42:14,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-10-12 19:42:14,320 INFO L87 Difference]: Start difference. First operand 1668 states and 2237 transitions. Second operand 13 states. [2020-10-12 19:42:15,839 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 568 [2020-10-12 19:42:16,405 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2020-10-12 19:42:23,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:42:23,990 INFO L93 Difference]: Finished difference Result 2501 states and 3339 transitions. [2020-10-12 19:42:23,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 19:42:23,991 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 79 [2020-10-12 19:42:23,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:42:23,997 INFO L225 Difference]: With dead ends: 2501 [2020-10-12 19:42:23,998 INFO L226 Difference]: Without dead ends: 2226 [2020-10-12 19:42:24,000 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2020-10-12 19:42:24,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2226 states. [2020-10-12 19:42:24,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2226 to 1660. [2020-10-12 19:42:24,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1660 states. [2020-10-12 19:42:24,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1660 states to 1660 states and 2225 transitions. [2020-10-12 19:42:24,147 INFO L78 Accepts]: Start accepts. Automaton has 1660 states and 2225 transitions. Word has length 79 [2020-10-12 19:42:24,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:42:24,148 INFO L479 AbstractCegarLoop]: Abstraction has 1660 states and 2225 transitions. [2020-10-12 19:42:24,148 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 19:42:24,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1660 states and 2225 transitions. [2020-10-12 19:42:24,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-12 19:42:24,151 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:42:24,152 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:42:24,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 19:42:24,152 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:42:24,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:42:24,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1353578738, now seen corresponding path program 1 times [2020-10-12 19:42:24,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:42:24,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [117221032] [2020-10-12 19:42:24,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:42:24,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:42:24,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:24,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:24,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:24,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:24,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:24,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:25,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:25,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:25,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:26,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:26,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:27,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:27,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:27,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:28,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:28,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:28,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:28,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:29,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:42:29,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 19:42:29,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-12 19:42:29,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 19:42:29,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:42:29,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 19:42:29,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:42:29,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-12 19:42:29,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:42:31,237 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-12 19:42:31,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:42:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:42:31,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:31,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:42:31,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:42:31,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:42:31,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 19:42:31,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:42:31,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:42:31,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:42:31,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:42:31,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:42:31,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:42:31,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [117221032] [2020-10-12 19:42:31,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:42:31,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-12 19:42:31,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492791920] [2020-10-12 19:42:31,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 19:42:31,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:42:31,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 19:42:31,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-12 19:42:31,318 INFO L87 Difference]: Start difference. First operand 1660 states and 2225 transitions. Second operand 15 states. [2020-10-12 19:42:31,462 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2020-10-12 19:42:34,785 WARN L193 SmtUtils]: Spent 3.23 s on a formula simplification. DAG size of input: 599 DAG size of output: 598 [2020-10-12 19:42:35,698 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-10-12 19:42:35,945 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-12 19:42:36,231 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2020-10-12 19:42:36,790 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2020-10-12 19:42:47,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:42:47,524 INFO L93 Difference]: Finished difference Result 3398 states and 4448 transitions. [2020-10-12 19:42:47,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-12 19:42:47,526 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 79 [2020-10-12 19:42:47,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:42:47,531 INFO L225 Difference]: With dead ends: 3398 [2020-10-12 19:42:47,532 INFO L226 Difference]: Without dead ends: 3376 [2020-10-12 19:42:47,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=277, Invalid=1129, Unknown=0, NotChecked=0, Total=1406 [2020-10-12 19:42:47,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3376 states. [2020-10-12 19:42:47,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3376 to 1662. [2020-10-12 19:42:47,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1662 states. [2020-10-12 19:42:47,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 2227 transitions. [2020-10-12 19:42:47,692 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 2227 transitions. Word has length 79 [2020-10-12 19:42:47,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:42:47,692 INFO L479 AbstractCegarLoop]: Abstraction has 1662 states and 2227 transitions. [2020-10-12 19:42:47,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 19:42:47,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 2227 transitions. [2020-10-12 19:42:47,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-12 19:42:47,696 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:42:47,696 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:42:47,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 19:42:47,696 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:42:47,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:42:47,697 INFO L82 PathProgramCache]: Analyzing trace with hash 376411771, now seen corresponding path program 1 times [2020-10-12 19:42:47,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:42:47,697 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [476879171] [2020-10-12 19:42:47,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:42:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:42:47,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:47,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:47,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:47,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:47,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:48,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:48,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:52,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:52,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:52,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:52,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:42:52,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 19:42:52,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 19:42:52,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 19:42:52,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:42:52,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 19:42:52,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:42:52,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 19:42:52,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:42:53,215 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-10-12 19:42:53,348 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-10-12 19:42:54,965 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 559 [2020-10-12 19:42:54,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:42:54,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:42:54,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:54,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:42:54,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:42:54,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:42:54,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 19:42:54,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:42:54,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:42:54,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:42:54,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:42:54,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:42:55,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:42:55,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [476879171] [2020-10-12 19:42:55,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:42:55,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 19:42:55,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779245390] [2020-10-12 19:42:55,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 19:42:55,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:42:55,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 19:42:55,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:42:55,039 INFO L87 Difference]: Start difference. First operand 1662 states and 2227 transitions. Second operand 14 states. [2020-10-12 19:42:58,310 WARN L193 SmtUtils]: Spent 3.08 s on a formula simplification. DAG size of input: 606 DAG size of output: 584 [2020-10-12 19:42:58,764 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2020-10-12 19:42:58,934 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 41 [2020-10-12 19:42:59,319 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38