/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/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:39:27,584 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:39:27,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:39:27,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:39:27,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:39:27,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:39:27,613 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:39:27,615 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:39:27,617 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:39:27,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:39:27,619 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:39:27,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:39:27,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:39:27,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:39:27,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:39:27,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:39:27,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:39:27,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:39:27,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:39:27,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:39:27,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:39:27,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:39:27,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:39:27,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:39:27,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:39:27,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:39:27,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:39:27,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:39:27,637 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:39:27,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:39:27,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:39:27,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:39:27,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:39:27,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:39:27,644 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:39:27,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:39:27,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:39:27,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:39:27,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:39:27,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:39:27,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:39:27,654 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 18:39:27,696 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:39:27,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:39:27,699 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:39:27,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:39:27,699 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:39:27,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:39:27,700 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:39:27,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:39:27,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:39:27,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:39:27,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:39:27,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:39:27,702 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:39:27,702 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:39:27,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:39:27,703 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:39:27,703 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:39:27,704 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:39:27,704 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:39:27,704 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:39:27,704 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:39:27,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:39:27,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:39:27,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:39:27,705 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:39:27,706 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:39:27,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:39:27,706 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:39:27,707 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:39:27,707 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 18:39:28,028 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:39:28,041 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:39:28,044 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:39:28,046 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:39:28,046 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:39:28,047 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c [2020-10-12 18:39:28,107 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b40abd7fd/172617ea58e745d991b5fe7dd18d3f84/FLAG3ea185c75 [2020-10-12 18:39:28,738 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:39:28,739 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c [2020-10-12 18:39:28,756 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b40abd7fd/172617ea58e745d991b5fe7dd18d3f84/FLAG3ea185c75 [2020-10-12 18:39:28,962 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b40abd7fd/172617ea58e745d991b5fe7dd18d3f84 [2020-10-12 18:39:28,973 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:39:28,975 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:39:28,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:39:28,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:39:28,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:39:28,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:39:28" (1/1) ... [2020-10-12 18:39:28,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6cae7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:39:28, skipping insertion in model container [2020-10-12 18:39:28,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:39:28" (1/1) ... [2020-10-12 18:39:28,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:39:29,056 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:39:29,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:39:29,753 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:39:29,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:39:29,971 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:39:29,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:39:29 WrapperNode [2020-10-12 18:39:29,971 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:39:29,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:39:29,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:39:29,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:39:29,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:39:29" (1/1) ... [2020-10-12 18:39:29,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:39:29" (1/1) ... [2020-10-12 18:39:30,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:39:29" (1/1) ... [2020-10-12 18:39:30,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:39:29" (1/1) ... [2020-10-12 18:39:30,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:39:29" (1/1) ... [2020-10-12 18:39:30,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:39:29" (1/1) ... [2020-10-12 18:39:30,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:39:29" (1/1) ... [2020-10-12 18:39:30,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:39:30,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:39:30,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:39:30,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:39:30,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:39:29" (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 18:39:30,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:39:30,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:39:30,213 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 18:39:30,213 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-12 18:39:30,213 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-12 18:39:30,214 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-12 18:39:30,214 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-12 18:39:30,215 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-12 18:39:30,215 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 18:39:30,215 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-12 18:39:30,215 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:39:30,215 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 18:39:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:39:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 18:39:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-12 18:39:30,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 18:39:30,217 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 18:39:30,217 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 18:39:30,217 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 18:39:30,218 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 18:39:30,218 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 18:39:30,218 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 18:39:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 18:39:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 18:39:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 18:39:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-12 18:39:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 18:39:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 18:39:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:39:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:39:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:39:32,508 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:39:32,508 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 18:39:32,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:39:32 BoogieIcfgContainer [2020-10-12 18:39:32,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:39:32,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:39:32,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:39:32,528 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:39:32,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:39:28" (1/3) ... [2020-10-12 18:39:32,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b428fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:39:32, skipping insertion in model container [2020-10-12 18:39:32,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:39:29" (2/3) ... [2020-10-12 18:39:32,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b428fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:39:32, skipping insertion in model container [2020-10-12 18:39:32,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:39:32" (3/3) ... [2020-10-12 18:39:32,533 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.5.2.ufo.UNBOUNDED.pals.c [2020-10-12 18:39:32,543 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:39:32,554 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:39:32,568 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:39:32,598 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:39:32,598 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:39:32,598 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:39:32,598 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:39:32,598 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:39:32,599 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:39:32,599 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:39:32,599 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:39:32,640 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states. [2020-10-12 18:39:32,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-12 18:39:32,664 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:39:32,665 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:39:32,665 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:39:32,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:39:32,671 INFO L82 PathProgramCache]: Analyzing trace with hash 906450296, now seen corresponding path program 1 times [2020-10-12 18:39:32,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:39:32,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [813511797] [2020-10-12 18:39:32,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:39:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:33,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:34,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:34,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-12 18:39:34,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:34,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 953 [2020-10-12 18:39:34,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:34,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:34,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-12 18:39:34,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:34,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:39:35,141 WARN L193 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-12 18:39:35,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:39:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:35,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:35,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:35,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:39:35,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:35,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 18:39:35,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:35,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:35,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:35,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:35,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:35,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:39:35,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:35,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:35,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:35,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 18:39:35,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:35,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-12 18:39:35,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:35,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:35,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:35,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:35,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:35,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-12 18:39:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:35,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:35,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:35,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:39:35,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:35,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:39:35,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:35,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:35,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:39:35,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:35,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:35,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-12 18:39:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:35,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:35,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:35,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:35,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:35,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:39:35,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:35,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:35,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:39:35,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:35,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:35,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-12 18:39:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:35,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:35,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:35,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:35,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:35,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:39:35,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:35,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:35,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:39:35,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:35,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:35,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-12 18:39:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:35,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:35,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:35,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:35,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:35,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:39:35,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:35,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:35,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:39:35,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:35,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:35,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-12 18:39:35,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:35,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:35,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:35,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:35,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:35,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:39:35,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:35,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:35,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:39:35,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:35,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:35,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-12 18:39:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:35,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:35,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:35,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:35,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:35,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:39:35,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:35,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:35,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:39:35,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:35,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:35,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-12 18:39:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:35,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:35,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:35,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:35,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:35,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:39:35,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:35,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:35,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:39:35,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:35,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:39:35,977 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 18:39:35,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [813511797] [2020-10-12 18:39:35,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:39:35,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 18:39:35,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957708750] [2020-10-12 18:39:35,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 18:39:35,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:39:36,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 18:39:36,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-12 18:39:36,019 INFO L87 Difference]: Start difference. First operand 747 states. Second operand 8 states. [2020-10-12 18:39:39,071 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:39:39,679 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:39:40,293 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:39:40,974 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:39:41,564 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:39:42,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:39:42,390 INFO L93 Difference]: Finished difference Result 989 states and 1744 transitions. [2020-10-12 18:39:42,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 18:39:42,396 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 182 [2020-10-12 18:39:42,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:39:42,428 INFO L225 Difference]: With dead ends: 989 [2020-10-12 18:39:42,428 INFO L226 Difference]: Without dead ends: 797 [2020-10-12 18:39:42,434 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:39:42,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2020-10-12 18:39:42,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 742. [2020-10-12 18:39:42,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2020-10-12 18:39:42,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1341 transitions. [2020-10-12 18:39:42,628 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1341 transitions. Word has length 182 [2020-10-12 18:39:42,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:39:42,629 INFO L479 AbstractCegarLoop]: Abstraction has 742 states and 1341 transitions. [2020-10-12 18:39:42,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 18:39:42,629 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1341 transitions. [2020-10-12 18:39:42,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-12 18:39:42,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:39:42,636 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:39:42,636 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:39:42,636 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:39:42,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:39:42,637 INFO L82 PathProgramCache]: Analyzing trace with hash 553361914, now seen corresponding path program 1 times [2020-10-12 18:39:42,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:39:42,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [284809520] [2020-10-12 18:39:42,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:39:42,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:42,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:45,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:45,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-12 18:39:45,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:45,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2666 [2020-10-12 18:39:45,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:45,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:39:45,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-12 18:39:45,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:39:45,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:46,544 WARN L193 SmtUtils]: Spent 838.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-12 18:39:46,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:39:46,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:46,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:46,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:46,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:39:46,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:46,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 18:39:46,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:46,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:46,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:46,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:46,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:39:46,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:39:46,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:46,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:47,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:47,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 18:39:47,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:47,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 561 [2020-10-12 18:39:47,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:47,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:39:47,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:47,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-12 18:39:47,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:39:47,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-12 18:39:47,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:47,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:47,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:47,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:39:47,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:47,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:39:47,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:47,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:39:47,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:39:47,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:39:47,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-12 18:39:47,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-12 18:39:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:47,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:47,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:47,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:47,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:47,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:39:47,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:47,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:47,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:39:47,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:47,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:39:47,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-12 18:39:47,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:47,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:47,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:47,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:47,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:47,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:39:47,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:47,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:47,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:39:47,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:47,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:39:47,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-12 18:39:47,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:47,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:47,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:47,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:47,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:47,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:39:47,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:47,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:47,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:39:47,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:47,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:39:47,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-12 18:39:47,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:47,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:47,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:47,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:47,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:47,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:39:47,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:47,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:47,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:39:47,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:47,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:39:47,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-12 18:39:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:47,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:47,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:47,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:47,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:47,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:39:47,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:47,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:47,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:39:47,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:47,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:39:47,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-12 18:39:47,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:47,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:47,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:47,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:47,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:47,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:39:47,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:47,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:47,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:39:47,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:47,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:47,886 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 18:39:47,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [284809520] [2020-10-12 18:39:47,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:39:47,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:39:47,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662010576] [2020-10-12 18:39:47,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:39:47,894 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:39:47,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:39:47,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:39:47,895 INFO L87 Difference]: Start difference. First operand 742 states and 1341 transitions. Second operand 14 states. [2020-10-12 18:39:56,894 WARN L193 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-12 18:39:57,753 WARN L193 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 362 [2020-10-12 18:39:58,704 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-12 18:39:59,519 WARN L193 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 364 [2020-10-12 18:40:00,784 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:40:01,482 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:40:02,305 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:40:03,125 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:40:03,915 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:40:04,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:40:04,891 INFO L93 Difference]: Finished difference Result 987 states and 1736 transitions. [2020-10-12 18:40:04,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 18:40:04,891 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 182 [2020-10-12 18:40:04,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:40:04,899 INFO L225 Difference]: With dead ends: 987 [2020-10-12 18:40:04,899 INFO L226 Difference]: Without dead ends: 797 [2020-10-12 18:40:04,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-12 18:40:04,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2020-10-12 18:40:05,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 742. [2020-10-12 18:40:05,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2020-10-12 18:40:05,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1281 transitions. [2020-10-12 18:40:05,032 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1281 transitions. Word has length 182 [2020-10-12 18:40:05,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:40:05,033 INFO L479 AbstractCegarLoop]: Abstraction has 742 states and 1281 transitions. [2020-10-12 18:40:05,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:40:05,033 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1281 transitions. [2020-10-12 18:40:05,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-12 18:40:05,038 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:40:05,038 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:40:05,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:40:05,039 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:40:05,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:40:05,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1577718157, now seen corresponding path program 1 times [2020-10-12 18:40:05,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:40:05,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [13041217] [2020-10-12 18:40:05,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:40:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:05,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:05,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:06,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:07,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:10,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:10,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-10-12 18:40:10,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:40:10,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-12 18:40:10,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:10,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-12 18:40:10,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-10-12 18:40:10,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 18:40:10,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:40:11,564 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 355 [2020-10-12 18:40:11,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:40:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:11,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:11,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:11,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:40:11,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:11,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 18:40:11,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:40:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:40:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:40:11,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:40:11,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:40:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:11,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:12,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:12,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 18:40:12,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:12,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1081 [2020-10-12 18:40:12,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:12,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:40:12,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:40:12,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-12 18:40:12,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:40:13,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-12 18:40:13,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:13,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:13,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:13,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:40:13,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:13,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:40:13,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:13,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:40:13,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:40:13,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:40:13,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:13,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-12 18:40:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:13,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:13,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:13,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:13,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:13,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:40:13,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:13,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:40:13,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:40:13,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:40:13,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:13,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-12 18:40:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:13,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:13,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:13,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:13,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:13,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 18:40:13,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:13,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:40:13,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:40:13,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:40:13,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:13,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-12 18:40:13,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:13,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:13,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:13,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:13,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:13,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:40:13,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:13,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:40:13,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:40:13,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:40:13,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:13,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-12 18:40:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:13,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:13,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:13,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:13,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:13,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:40:13,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:13,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:40:13,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:40:13,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:40:13,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:13,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-12 18:40:13,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:13,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:13,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:13,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:13,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:13,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 18:40:13,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:13,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:40:13,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:40:13,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:40:13,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:13,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-12 18:40:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:13,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:13,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:13,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:13,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:13,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:40:13,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:13,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:40:13,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:40:13,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:40:13,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:13,724 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 18:40:13,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [13041217] [2020-10-12 18:40:13,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:40:13,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-12 18:40:13,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677147284] [2020-10-12 18:40:13,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-12 18:40:13,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:40:13,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-12 18:40:13,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2020-10-12 18:40:13,728 INFO L87 Difference]: Start difference. First operand 742 states and 1281 transitions. Second operand 19 states. [2020-10-12 18:40:14,639 WARN L193 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2020-10-12 18:40:21,171 WARN L193 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2020-10-12 18:40:21,952 WARN L193 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-12 18:40:22,716 WARN L193 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-12 18:40:23,482 WARN L193 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2020-10-12 18:40:23,915 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-12 18:40:24,445 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-12 18:40:24,735 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:40:25,253 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-12 18:40:25,561 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:40:25,830 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:40:26,592 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-12 18:40:26,926 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 18:40:27,179 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:40:27,496 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-12 18:40:27,811 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:40:28,655 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-12 18:40:28,976 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:40:29,240 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-12 18:40:29,502 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-12 18:40:29,804 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:40:30,077 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:40:30,397 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:40:31,495 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:40:31,852 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-12 18:40:32,139 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-12 18:40:32,418 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:40:32,686 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:40:32,930 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:40:33,201 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:40:33,494 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:40:35,159 WARN L193 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2020-10-12 18:40:35,403 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:40:36,209 WARN L193 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2020-10-12 18:40:36,479 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:40:37,329 WARN L193 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 362 [2020-10-12 18:40:37,606 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-12 18:40:38,483 WARN L193 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2020-10-12 18:40:39,310 WARN L193 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-12 18:40:39,562 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:40:41,596 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-12 18:40:41,885 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-12 18:40:42,182 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-12 18:40:42,467 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-12 18:40:42,766 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 18:40:43,046 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:40:43,315 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-12 18:40:43,593 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:40:43,907 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-12 18:40:44,186 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-12 18:40:45,653 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-12 18:40:45,965 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-12 18:40:46,288 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-12 18:40:46,623 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-12 18:40:46,904 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-12 18:40:47,209 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-12 18:40:47,455 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:40:47,760 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-12 18:40:48,070 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-12 18:40:48,385 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-12 18:40:50,024 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 18:40:50,374 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-12 18:40:50,692 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-12 18:40:51,040 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-12 18:40:51,381 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 18:40:51,704 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-12 18:40:52,015 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-12 18:40:52,318 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:40:52,624 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-12 18:40:54,233 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-12 18:40:54,599 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-12 18:40:54,954 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-12 18:40:55,313 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-12 18:40:55,607 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-12 18:40:55,999 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-12 18:40:56,328 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-12 18:40:56,673 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-12 18:40:58,323 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-12 18:40:58,666 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-12 18:40:59,016 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-12 18:40:59,380 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-12 18:40:59,696 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-12 18:41:00,171 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-12 18:41:00,491 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-12 18:41:03,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:41:03,110 INFO L93 Difference]: Finished difference Result 3403 states and 5617 transitions. [2020-10-12 18:41:03,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2020-10-12 18:41:03,111 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 241 [2020-10-12 18:41:03,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:41:03,139 INFO L225 Difference]: With dead ends: 3403 [2020-10-12 18:41:03,139 INFO L226 Difference]: Without dead ends: 3219 [2020-10-12 18:41:03,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 21 SyntacticMatches, 4 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4296 ImplicationChecksByTransitivity, 28.5s TimeCoverageRelationStatistics Valid=2246, Invalid=9744, Unknown=0, NotChecked=0, Total=11990 [2020-10-12 18:41:03,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3219 states. [2020-10-12 18:41:03,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3219 to 2554. [2020-10-12 18:41:03,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2554 states. [2020-10-12 18:41:03,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2554 states to 2554 states and 4263 transitions. [2020-10-12 18:41:03,396 INFO L78 Accepts]: Start accepts. Automaton has 2554 states and 4263 transitions. Word has length 241 [2020-10-12 18:41:03,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:41:03,397 INFO L479 AbstractCegarLoop]: Abstraction has 2554 states and 4263 transitions. [2020-10-12 18:41:03,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-12 18:41:03,397 INFO L276 IsEmpty]: Start isEmpty. Operand 2554 states and 4263 transitions. [2020-10-12 18:41:03,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-10-12 18:41:03,403 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:41:03,404 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:03,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:41:03,404 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:41:03,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:41:03,405 INFO L82 PathProgramCache]: Analyzing trace with hash -54351672, now seen corresponding path program 1 times [2020-10-12 18:41:03,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:41:03,405 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2134191925] [2020-10-12 18:41:03,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:41:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:03,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:03,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:04,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:04,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:05,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:08,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:08,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-12 18:41:08,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:41:08,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-12 18:41:08,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:08,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:41:08,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-10-12 18:41:08,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 18:41:08,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:09,469 WARN L193 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-12 18:41:09,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:41:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:09,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:09,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:09,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:41:09,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:09,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:41:09,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:09,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:41:09,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:09,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:41:09,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:09,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:41:09,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:09,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:09,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:09,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 18:41:09,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:09,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-12 18:41:09,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:09,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:41:09,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:09,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-12 18:41:09,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:09,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-12 18:41:09,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:09,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:09,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:09,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:41:09,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:09,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:41:09,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:09,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:41:09,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:09,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:41:09,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:10,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-12 18:41:10,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:10,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:10,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:10,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:41:10,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:10,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:41:10,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:10,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:41:10,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:41:10,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:41:10,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:10,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-12 18:41:10,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:10,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:10,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:10,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:41:10,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:10,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:41:10,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:10,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:41:10,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:10,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:41:10,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:10,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-12 18:41:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:10,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:10,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:10,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:41:10,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:10,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:41:10,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:10,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:41:10,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:10,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:41:10,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:10,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-12 18:41:10,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:10,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:10,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:10,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:41:10,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:10,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:41:10,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:10,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:41:10,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:10,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:41:10,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:10,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-12 18:41:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:10,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:10,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:10,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:41:10,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:10,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:41:10,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:10,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:41:10,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:10,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:41:10,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:10,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-12 18:41:10,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:10,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:10,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:10,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:41:10,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:10,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:41:10,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:10,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:41:10,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-12 18:41:10,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:41:10,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:10,360 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 18:41:10,360 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2134191925] [2020-10-12 18:41:10,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:41:10,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 18:41:10,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303869025] [2020-10-12 18:41:10,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 18:41:10,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:41:10,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 18:41:10,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:41:10,363 INFO L87 Difference]: Start difference. First operand 2554 states and 4263 transitions. Second operand 12 states. [2020-10-12 18:41:11,148 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-12 18:41:18,260 WARN L193 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2020-10-12 18:41:18,760 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-12 18:41:19,395 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:41:19,746 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:41:20,001 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:41:20,600 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:41:20,975 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:41:21,241 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:41:22,304 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:41:22,739 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:41:23,036 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:41:24,060 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:41:24,512 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:41:24,800 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:41:25,994 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:41:26,282 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:41:27,737 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-12 18:41:28,526 WARN L193 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2020-10-12 18:41:29,664 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-12 18:41:29,981 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-12 18:41:30,258 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-12 18:41:30,630 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-12 18:41:31,746 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:41:32,104 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:41:32,523 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:41:33,453 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:41:33,809 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:41:35,021 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:41:35,361 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:41:36,474 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:41:36,820 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:41:38,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:41:38,012 INFO L93 Difference]: Finished difference Result 9843 states and 16082 transitions. [2020-10-12 18:41:38,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-12 18:41:38,014 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 242 [2020-10-12 18:41:38,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:41:38,053 INFO L225 Difference]: With dead ends: 9843 [2020-10-12 18:41:38,053 INFO L226 Difference]: Without dead ends: 7847 [2020-10-12 18:41:38,061 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=426, Invalid=1554, Unknown=0, NotChecked=0, Total=1980 [2020-10-12 18:41:38,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7847 states. [2020-10-12 18:41:38,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7847 to 6123. [2020-10-12 18:41:38,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6123 states. [2020-10-12 18:41:38,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6123 states to 6123 states and 10113 transitions. [2020-10-12 18:41:38,579 INFO L78 Accepts]: Start accepts. Automaton has 6123 states and 10113 transitions. Word has length 242 [2020-10-12 18:41:38,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:41:38,580 INFO L479 AbstractCegarLoop]: Abstraction has 6123 states and 10113 transitions. [2020-10-12 18:41:38,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 18:41:38,580 INFO L276 IsEmpty]: Start isEmpty. Operand 6123 states and 10113 transitions. [2020-10-12 18:41:38,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-10-12 18:41:38,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:41:38,586 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:38,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:41:38,587 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:41:38,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:41:38,587 INFO L82 PathProgramCache]: Analyzing trace with hash -126315830, now seen corresponding path program 1 times [2020-10-12 18:41:38,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:41:38,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2085107375] [2020-10-12 18:41:38,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:41:38,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:38,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:38,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:39,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:39,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:40,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:43,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:43,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-10-12 18:41:43,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:41:43,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-12 18:41:43,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:43,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:41:43,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 182 [2020-10-12 18:41:43,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 18:41:43,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:44,482 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-12 18:41:44,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:41:44,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:44,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:44,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:44,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:41:44,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:44,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:41:44,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:44,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:41:44,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:44,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:41:44,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:44,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:41:44,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:44,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:44,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:44,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 18:41:44,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:44,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-10-12 18:41:44,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:44,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:41:44,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:44,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-12 18:41:44,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:44,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-12 18:41:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:44,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:44,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:44,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:41:44,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:44,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:41:44,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:44,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:41:44,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:44,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:41:44,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:44,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-12 18:41:44,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:44,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:44,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:44,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:41:44,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:44,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:41:44,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:44,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:41:44,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:44,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:41:44,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:45,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-12 18:41:45,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:45,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:45,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:45,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:41:45,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:45,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:41:45,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:45,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:41:45,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:41:45,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:41:45,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:41:45,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-12 18:41:45,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:45,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:45,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:45,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:41:45,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:45,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:41:45,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:45,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:41:45,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:45,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:41:45,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:41:45,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-12 18:41:45,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:45,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:45,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:45,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:41:45,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:45,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:41:45,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:45,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:41:45,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:45,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:41:45,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:45,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-12 18:41:45,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:45,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:45,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:45,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:41:45,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:45,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:41:45,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:45,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:41:45,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:45,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:41:45,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:45,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-12 18:41:45,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:45,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:45,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:45,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:41:45,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:45,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:41:45,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:45,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:41:45,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:41:45,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:41:45,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:45,468 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 18:41:45,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2085107375] [2020-10-12 18:41:45,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:41:45,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 18:41:45,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701008745] [2020-10-12 18:41:45,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 18:41:45,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:41:45,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 18:41:45,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:41:45,470 INFO L87 Difference]: Start difference. First operand 6123 states and 10113 transitions. Second operand 12 states. [2020-10-12 18:41:46,256 WARN L193 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-12 18:41:53,216 WARN L193 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2020-10-12 18:41:53,713 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:41:54,368 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:41:55,077 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:41:55,386 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:41:55,630 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:41:56,365 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:41:56,643 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:41:56,970 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:41:58,129 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:41:58,446 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:41:58,726 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:41:59,922 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:42:00,197 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:42:01,712 WARN L193 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2020-10-12 18:42:02,527 WARN L193 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-12 18:42:03,709 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:42:04,140 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:42:04,440 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:42:04,713 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:42:05,665 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 18:42:06,512 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 178 [2020-10-12 18:42:06,923 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-12 18:42:07,508 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 182 [2020-10-12 18:42:08,696 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:42:09,030 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:42:09,341 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:42:10,320 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:42:10,622 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:42:11,641 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:42:12,042 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:42:13,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:42:13,211 INFO L93 Difference]: Finished difference Result 28372 states and 46104 transitions. [2020-10-12 18:42:13,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-12 18:42:13,212 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 243 [2020-10-12 18:42:13,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:42:13,317 INFO L225 Difference]: With dead ends: 28372 [2020-10-12 18:42:13,317 INFO L226 Difference]: Without dead ends: 22807 [2020-10-12 18:42:13,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=427, Invalid=1553, Unknown=0, NotChecked=0, Total=1980 [2020-10-12 18:42:13,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22807 states. [2020-10-12 18:42:14,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22807 to 17539. [2020-10-12 18:42:14,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17539 states. [2020-10-12 18:42:14,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17539 states to 17539 states and 28776 transitions. [2020-10-12 18:42:14,454 INFO L78 Accepts]: Start accepts. Automaton has 17539 states and 28776 transitions. Word has length 243 [2020-10-12 18:42:14,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:42:14,455 INFO L479 AbstractCegarLoop]: Abstraction has 17539 states and 28776 transitions. [2020-10-12 18:42:14,455 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 18:42:14,455 INFO L276 IsEmpty]: Start isEmpty. Operand 17539 states and 28776 transitions. [2020-10-12 18:42:14,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-10-12 18:42:14,463 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:42:14,463 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:42:14,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:42:14,464 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:42:14,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:42:14,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1886077631, now seen corresponding path program 1 times [2020-10-12 18:42:14,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:42:14,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [790683717] [2020-10-12 18:42:14,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:42:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:14,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:14,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:15,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:16,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:16,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:19,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:19,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-10-12 18:42:19,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:42:19,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-12 18:42:19,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:19,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:42:19,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 183 [2020-10-12 18:42:19,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 18:42:19,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:20,395 WARN L193 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-12 18:42:20,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:42:20,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:20,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:20,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:20,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:42:20,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:42:20,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:42:20,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:20,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:42:20,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:42:20,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:42:20,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:20,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:42:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:20,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:20,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:20,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 18:42:20,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:42:20,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-10-12 18:42:20,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:20,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:42:20,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:42:20,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-12 18:42:20,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:20,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-12 18:42:20,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:20,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:20,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:20,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:42:20,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:42:20,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:42:20,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:20,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:42:20,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:42:20,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:42:20,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:20,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-12 18:42:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:20,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:20,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:20,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:42:20,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:42:20,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:42:20,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:20,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:42:20,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:42:20,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:42:20,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:20,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-12 18:42:20,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:20,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:20,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:20,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:42:20,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:42:20,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:42:20,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:20,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:42:20,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:42:20,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:42:20,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:20,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-12 18:42:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:20,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:20,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:20,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:42:20,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:42:20,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:42:20,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:20,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:42:20,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:42:20,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:42:20,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:20,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-12 18:42:20,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:21,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:21,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:21,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:42:21,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:42:21,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:42:21,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:21,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:42:21,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:42:21,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:42:21,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:21,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-12 18:42:21,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:21,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:21,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:21,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:42:21,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:42:21,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:42:21,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:21,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:42:21,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:42:21,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:42:21,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:21,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-12 18:42:21,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:21,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:21,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:21,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:42:21,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:42:21,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:42:21,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:21,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:42:21,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 18:42:21,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:42:21,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:21,144 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 18:42:21,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [790683717] [2020-10-12 18:42:21,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:42:21,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 18:42:21,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865776889] [2020-10-12 18:42:21,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 18:42:21,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:42:21,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 18:42:21,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:42:21,147 INFO L87 Difference]: Start difference. First operand 17539 states and 28776 transitions. Second operand 12 states. [2020-10-12 18:42:22,015 WARN L193 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-12 18:42:29,693 WARN L193 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2020-10-12 18:42:30,191 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-12 18:42:30,846 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-12 18:42:31,642 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-12 18:42:32,422 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-12 18:42:32,690 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:42:32,954 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:42:33,682 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-12 18:42:33,960 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:42:34,212 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:42:35,384 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:42:35,664 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:42:37,277 WARN L193 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-12 18:42:38,105 WARN L193 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2020-10-12 18:42:39,129 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:42:39,718 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:42:39,994 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:42:40,380 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:42:40,789 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:42:41,930 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:42:42,277 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:42:42,801 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:42:43,253 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-12 18:42:44,322 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-12 18:42:44,658 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-12 18:42:45,175 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-12 18:42:46,352 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:42:46,709 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:42:47,080 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:42:48,276 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:42:48,632 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:42:50,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:42:50,915 INFO L93 Difference]: Finished difference Result 95027 states and 153832 transitions. [2020-10-12 18:42:50,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-12 18:42:50,916 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 244 [2020-10-12 18:42:50,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:42:51,215 INFO L225 Difference]: With dead ends: 95027 [2020-10-12 18:42:51,215 INFO L226 Difference]: Without dead ends: 78046 [2020-10-12 18:42:51,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=435, Invalid=1635, Unknown=0, NotChecked=0, Total=2070 [2020-10-12 18:42:51,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78046 states. [2020-10-12 18:42:53,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78046 to 59706. [2020-10-12 18:42:53,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59706 states. [2020-10-12 18:42:53,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59706 states to 59706 states and 97551 transitions. [2020-10-12 18:42:53,862 INFO L78 Accepts]: Start accepts. Automaton has 59706 states and 97551 transitions. Word has length 244 [2020-10-12 18:42:53,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:42:53,863 INFO L479 AbstractCegarLoop]: Abstraction has 59706 states and 97551 transitions. [2020-10-12 18:42:53,863 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 18:42:53,863 INFO L276 IsEmpty]: Start isEmpty. Operand 59706 states and 97551 transitions. [2020-10-12 18:42:53,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-12 18:42:53,872 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:42:53,873 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:42:53,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:42:53,873 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:42:53,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:42:53,874 INFO L82 PathProgramCache]: Analyzing trace with hash -205919455, now seen corresponding path program 1 times [2020-10-12 18:42:53,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:42:53,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1040803354] [2020-10-12 18:42:53,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:42:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:55,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:55,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:56,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:56,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:56,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:00,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:00,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-10-12 18:43:00,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:43:00,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 18:43:00,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:00,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:43:00,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 184 [2020-10-12 18:43:00,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 18:43:00,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:01,277 WARN L193 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-12 18:43:01,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:43:01,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:01,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:01,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:01,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:43:01,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:01,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:43:01,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:01,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:43:01,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:01,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:43:01,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:01,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:43:01,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:01,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:01,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:01,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 18:43:01,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:01,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-12 18:43:01,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:01,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:43:01,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:01,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-12 18:43:01,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:01,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-12 18:43:01,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:01,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:01,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:01,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:43:01,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:01,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:43:01,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:01,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:43:01,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:01,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:43:01,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:01,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-12 18:43:01,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:01,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:01,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:01,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:43:01,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:01,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:43:01,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:01,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:43:01,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:01,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:43:01,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:01,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-12 18:43:01,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:01,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:01,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:01,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:43:01,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:01,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:43:01,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:01,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:43:01,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:01,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:43:01,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:01,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-12 18:43:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:01,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:01,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:01,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:43:01,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:01,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:43:01,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:01,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:43:01,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:01,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:43:01,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:01,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-12 18:43:01,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:01,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:01,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:01,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:43:01,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:01,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:43:01,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:01,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:43:01,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:43:01,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:43:01,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:01,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-12 18:43:01,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:01,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:01,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:01,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:43:01,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:01,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:43:01,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:01,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:43:01,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:01,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:43:01,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:01,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-12 18:43:01,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:01,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:01,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:01,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:43:01,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:01,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:43:01,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:01,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:43:01,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:43:01,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:43:01,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:02,056 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 18:43:02,056 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1040803354] [2020-10-12 18:43:02,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:43:02,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 18:43:02,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806753455] [2020-10-12 18:43:02,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 18:43:02,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:43:02,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 18:43:02,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:43:02,058 INFO L87 Difference]: Start difference. First operand 59706 states and 97551 transitions. Second operand 12 states. [2020-10-12 18:43:02,981 WARN L193 SmtUtils]: Spent 860.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-12 18:43:09,777 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-12 18:43:10,230 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:43:10,762 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:43:11,432 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:43:12,181 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:43:12,862 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:43:13,158 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:43:13,433 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-12 18:43:14,195 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:43:14,475 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:43:16,082 WARN L193 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-12 18:43:16,923 WARN L193 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2020-10-12 18:43:17,786 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:43:18,362 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:43:18,635 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-12 18:43:18,979 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 172