/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=NARROWEST --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_lcr.6.ufo.BOUNDED-12.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 13:26:50,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 13:26:50,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 13:26:50,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 13:26:50,597 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 13:26:50,605 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 13:26:50,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 13:26:50,612 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 13:26:50,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 13:26:50,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 13:26:50,619 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 13:26:50,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 13:26:50,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 13:26:50,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 13:26:50,626 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 13:26:50,627 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 13:26:50,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 13:26:50,629 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 13:26:50,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 13:26:50,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 13:26:50,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 13:26:50,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 13:26:50,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 13:26:50,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 13:26:50,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 13:26:50,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 13:26:50,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 13:26:50,656 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 13:26:50,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 13:26:50,661 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 13:26:50,661 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 13:26:50,662 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 13:26:50,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 13:26:50,663 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 13:26:50,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 13:26:50,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 13:26:50,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 13:26:50,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 13:26:50,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 13:26:50,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 13:26:50,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 13:26:50,669 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 [2020-10-13 13:26:50,708 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 13:26:50,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 13:26:50,710 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 13:26:50,711 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 13:26:50,711 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 13:26:50,711 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 13:26:50,711 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 13:26:50,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 13:26:50,712 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 13:26:50,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 13:26:50,713 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 13:26:50,713 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 13:26:50,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 13:26:50,714 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 13:26:50,714 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 13:26:50,714 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 13:26:50,715 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 13:26:50,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 13:26:50,715 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 13:26:50,715 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 13:26:50,715 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 13:26:50,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:26:50,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 13:26:50,716 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 13:26:50,716 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 13:26:50,716 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 13:26:50,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 13:26:50,717 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 13:26:50,717 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 13:26:50,717 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 13:26:51,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 13:26:51,028 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 13:26:51,032 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 13:26:51,033 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 13:26:51,034 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 13:26:51,035 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.6.ufo.BOUNDED-12.pals.c [2020-10-13 13:26:51,099 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0477490d2/9f429b68b4de43c89e091eb3e9b1c901/FLAGfe11f9253 [2020-10-13 13:26:51,624 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 13:26:51,624 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.6.ufo.BOUNDED-12.pals.c [2020-10-13 13:26:51,642 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0477490d2/9f429b68b4de43c89e091eb3e9b1c901/FLAGfe11f9253 [2020-10-13 13:26:51,940 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0477490d2/9f429b68b4de43c89e091eb3e9b1c901 [2020-10-13 13:26:51,948 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 13:26:51,950 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 13:26:51,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 13:26:51,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 13:26:51,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 13:26:51,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:26:51" (1/1) ... [2020-10-13 13:26:51,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a529ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:26:51, skipping insertion in model container [2020-10-13 13:26:51,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:26:51" (1/1) ... [2020-10-13 13:26:51,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 13:26:52,005 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 13:26:52,268 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:26:52,277 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 13:26:52,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:26:52,463 INFO L208 MainTranslator]: Completed translation [2020-10-13 13:26:52,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:26:52 WrapperNode [2020-10-13 13:26:52,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 13:26:52,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 13:26:52,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 13:26:52,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 13:26:52,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:26:52" (1/1) ... [2020-10-13 13:26:52,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:26:52" (1/1) ... [2020-10-13 13:26:52,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:26:52" (1/1) ... [2020-10-13 13:26:52,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:26:52" (1/1) ... [2020-10-13 13:26:52,503 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:26:52" (1/1) ... [2020-10-13 13:26:52,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:26:52" (1/1) ... [2020-10-13 13:26:52,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:26:52" (1/1) ... [2020-10-13 13:26:52,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 13:26:52,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 13:26:52,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 13:26:52,526 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 13:26:52,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:26:52" (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 [2020-10-13 13:26:52,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 13:26:52,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 13:26:52,608 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 13:26:52,608 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-13 13:26:52,609 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-13 13:26:52,609 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-13 13:26:52,609 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-13 13:26:52,610 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-13 13:26:52,610 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2020-10-13 13:26:52,610 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-13 13:26:52,611 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-13 13:26:52,611 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 13:26:52,611 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-13 13:26:52,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 13:26:52,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 13:26:52,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 13:26:52,612 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 13:26:52,612 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 13:26:52,612 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 13:26:52,613 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 13:26:52,613 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 13:26:52,613 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-13 13:26:52,613 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-13 13:26:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-13 13:26:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-13 13:26:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-13 13:26:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-13 13:26:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 13:26:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 13:26:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 13:26:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 13:26:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 13:26:53,322 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 13:26:53,323 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 13:26:53,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:26:53 BoogieIcfgContainer [2020-10-13 13:26:53,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 13:26:53,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 13:26:53,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 13:26:53,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 13:26:53,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:26:51" (1/3) ... [2020-10-13 13:26:53,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f2cf0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:26:53, skipping insertion in model container [2020-10-13 13:26:53,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:26:52" (2/3) ... [2020-10-13 13:26:53,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f2cf0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:26:53, skipping insertion in model container [2020-10-13 13:26:53,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:26:53" (3/3) ... [2020-10-13 13:26:53,345 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.BOUNDED-12.pals.c [2020-10-13 13:26:53,357 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 13:26:53,367 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 13:26:53,378 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 13:26:53,399 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 13:26:53,399 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 13:26:53,399 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 13:26:53,400 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 13:26:53,400 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 13:26:53,400 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 13:26:53,400 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 13:26:53,401 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 13:26:53,424 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states. [2020-10-13 13:26:53,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-13 13:26:53,435 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:26:53,436 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] [2020-10-13 13:26:53,436 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:26:53,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:26:53,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1916076877, now seen corresponding path program 1 times [2020-10-13 13:26:53,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:26:53,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1903347060] [2020-10-13 13:26:53,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:26:53,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:53,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:54,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:54,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 13:26:54,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:54,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 489 [2020-10-13 13:26:54,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:54,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:54,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-13 13:26:54,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:54,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 13:26:54,478 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:26:54,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:26:54,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:54,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:54,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:54,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:26:54,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:54,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 13:26:54,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:54,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:54,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:54,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:54,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:54,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:26:54,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:54,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:54,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:54,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:26:54,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:54,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:26:54,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:54,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:54,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:54,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:54,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:54,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 13:26:54,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:54,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:54,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:54,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:54,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:54,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:54,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:54,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:54,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:26:54,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:54,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:54,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-13 13:26:54,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:54,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:54,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:54,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:54,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:54,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:26:54,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:54,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:54,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:54,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:54,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:54,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 13:26:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:54,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:54,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:54,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:54,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:54,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:26:54,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:54,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:54,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:54,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:54,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:54,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 13:26:54,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:54,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:54,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:54,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:54,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:54,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:26:54,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:54,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:54,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:54,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:54,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:54,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:26:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:54,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:54,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:54,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:54,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:54,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:26:54,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:54,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:54,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:54,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:54,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:54,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-13 13:26:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:54,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:54,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:54,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:54,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:54,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:26:54,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:54,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:54,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:54,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:54,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:54,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 13:26:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:54,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:54,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:54,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:54,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:54,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:26:54,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:54,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:54,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:54,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:54,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:54,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:26:54,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:54,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:54,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:54,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:26:54,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:54,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:26:54,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:54,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:54,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:26:54,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:54,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:54,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:26:54,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1903347060] [2020-10-13 13:26:54,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:26:54,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 13:26:54,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859961152] [2020-10-13 13:26:54,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 13:26:54,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:26:54,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 13:26:54,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-13 13:26:54,915 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 9 states. [2020-10-13 13:26:56,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:26:56,229 INFO L93 Difference]: Finished difference Result 245 states and 361 transitions. [2020-10-13 13:26:56,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 13:26:56,232 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 74 [2020-10-13 13:26:56,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:26:56,244 INFO L225 Difference]: With dead ends: 245 [2020-10-13 13:26:56,244 INFO L226 Difference]: Without dead ends: 145 [2020-10-13 13:26:56,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-13 13:26:56,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-10-13 13:26:56,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2020-10-13 13:26:56,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-13 13:26:56,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 220 transitions. [2020-10-13 13:26:56,307 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 220 transitions. Word has length 74 [2020-10-13 13:26:56,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:26:56,307 INFO L479 AbstractCegarLoop]: Abstraction has 145 states and 220 transitions. [2020-10-13 13:26:56,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 13:26:56,308 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 220 transitions. [2020-10-13 13:26:56,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-13 13:26:56,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:26:56,312 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] [2020-10-13 13:26:56,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 13:26:56,312 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:26:56,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:26:56,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1355377099, now seen corresponding path program 1 times [2020-10-13 13:26:56,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:26:56,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409124456] [2020-10-13 13:26:56,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:26:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:56,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:57,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:57,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 13:26:57,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:57,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 713 [2020-10-13 13:26:57,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:57,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:26:57,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 13:26:57,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:26:57,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:57,310 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:26:57,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:26:57,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:57,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:57,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:57,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:26:57,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:57,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:26:57,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:57,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:57,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:57,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:57,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:57,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:26:57,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:57,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:57,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:57,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:26:57,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:57,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:26:57,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:57,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:57,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:57,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:26:57,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:57,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 13:26:57,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:57,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:57,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:57,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:57,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:57,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:26:57,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:57,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:57,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:26:57,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:26:57,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:57,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-13 13:26:57,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:57,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:57,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:57,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:57,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:57,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:26:57,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:57,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:57,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:57,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:57,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:57,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 13:26:57,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:57,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:57,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:57,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:57,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:57,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 13:26:57,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:57,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:57,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:57,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:57,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:57,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 13:26:57,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:57,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:57,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:57,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:57,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:57,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:26:57,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:57,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:57,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:57,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:57,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:57,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:26:57,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:57,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:57,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:57,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:57,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:57,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:26:57,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:57,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:57,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:57,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:57,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:57,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-13 13:26:57,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:57,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:57,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:57,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:57,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:57,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:26:57,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:57,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:57,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:57,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:57,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:57,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 13:26:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:57,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:57,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:57,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:57,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:57,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:26:57,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:57,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:57,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:57,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:57,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:57,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:26:57,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:57,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:57,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:57,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:26:57,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:57,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:57,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:57,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:57,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:26:57,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:57,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:57,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:26:57,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409124456] [2020-10-13 13:26:57,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:26:57,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-13 13:26:57,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632437454] [2020-10-13 13:26:57,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-13 13:26:57,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:26:57,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-13 13:26:57,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-13 13:26:57,700 INFO L87 Difference]: Start difference. First operand 145 states and 220 transitions. Second operand 15 states. [2020-10-13 13:26:57,901 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:26:58,058 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-13 13:26:58,341 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:26:58,501 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:27:00,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:27:00,399 INFO L93 Difference]: Finished difference Result 250 states and 369 transitions. [2020-10-13 13:27:00,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:27:00,402 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 74 [2020-10-13 13:27:00,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:27:00,407 INFO L225 Difference]: With dead ends: 250 [2020-10-13 13:27:00,408 INFO L226 Difference]: Without dead ends: 157 [2020-10-13 13:27:00,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2020-10-13 13:27:00,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-10-13 13:27:00,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 145. [2020-10-13 13:27:00,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-13 13:27:00,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 180 transitions. [2020-10-13 13:27:00,466 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 180 transitions. Word has length 74 [2020-10-13 13:27:00,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:27:00,466 INFO L479 AbstractCegarLoop]: Abstraction has 145 states and 180 transitions. [2020-10-13 13:27:00,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-13 13:27:00,466 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 180 transitions. [2020-10-13 13:27:00,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-13 13:27:00,469 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:27:00,469 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] [2020-10-13 13:27:00,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 13:27:00,470 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:27:00,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:27:00,470 INFO L82 PathProgramCache]: Analyzing trace with hash 264536888, now seen corresponding path program 1 times [2020-10-13 13:27:00,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:27:00,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [783487832] [2020-10-13 13:27:00,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:27:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:00,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:03,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:03,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-13 13:27:03,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:27:03,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3093 [2020-10-13 13:27:03,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:03,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:03,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 13:27:03,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 13:27:03,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:27:03,817 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:27:03,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:27:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:03,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:03,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:03,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:27:03,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:03,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 13:27:03,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:03,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:03,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:03,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:03,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:03,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:27:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:03,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:03,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:03,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:27:03,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:03,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 13:27:03,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:03,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:03,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:03,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:27:03,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:03,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:27:03,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:03,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:03,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:03,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:27:03,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:03,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:27:03,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:03,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:03,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:03,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:27:03,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:03,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:27:03,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:03,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:03,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:03,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:03,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:03,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:27:03,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:03,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:03,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:03,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:03,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:03,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:27:03,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:03,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:04,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:04,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:04,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:04,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:27:04,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:04,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:04,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:04,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:04,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:04,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:27:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:04,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:04,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:04,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:04,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:04,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 13:27:04,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:04,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:04,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:04,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:04,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:04,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:27:04,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:04,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:04,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:04,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:04,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:04,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:27:04,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:04,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:04,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:27:04,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:04,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:04,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:27:04,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:04,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:04,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:04,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:04,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:04,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:27:04,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:04,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:04,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:27:04,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:04,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:04,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:27:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:04,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:04,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:04,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:04,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:04,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:27:04,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:04,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:04,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:27:04,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:04,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 13:27:04,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:27:04,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:04,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:04,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:04,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:27:04,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:04,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:27:04,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:04,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:04,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:27:04,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:04,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:04,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:27:04,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [783487832] [2020-10-13 13:27:04,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:27:04,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 13:27:04,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527192726] [2020-10-13 13:27:04,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 13:27:04,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:27:04,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 13:27:04,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-13 13:27:04,277 INFO L87 Difference]: Start difference. First operand 145 states and 180 transitions. Second operand 12 states. [2020-10-13 13:27:04,428 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-13 13:27:06,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:27:06,665 INFO L93 Difference]: Finished difference Result 313 states and 416 transitions. [2020-10-13 13:27:06,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 13:27:06,669 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 113 [2020-10-13 13:27:06,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:27:06,677 INFO L225 Difference]: With dead ends: 313 [2020-10-13 13:27:06,677 INFO L226 Difference]: Without dead ends: 226 [2020-10-13 13:27:06,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=177, Invalid=473, Unknown=0, NotChecked=0, Total=650 [2020-10-13 13:27:06,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-13 13:27:06,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 224. [2020-10-13 13:27:06,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-10-13 13:27:06,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 291 transitions. [2020-10-13 13:27:06,716 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 291 transitions. Word has length 113 [2020-10-13 13:27:06,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:27:06,717 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 291 transitions. [2020-10-13 13:27:06,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 13:27:06,717 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 291 transitions. [2020-10-13 13:27:06,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-13 13:27:06,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:27:06,720 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] [2020-10-13 13:27:06,721 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 13:27:06,721 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:27:06,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:27:06,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1242071938, now seen corresponding path program 1 times [2020-10-13 13:27:06,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:27:06,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1953428102] [2020-10-13 13:27:06,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:27:06,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:06,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:08,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:08,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-13 13:27:08,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:08,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1396 [2020-10-13 13:27:08,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:08,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:27:08,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 13:27:08,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 13:27:08,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:08,359 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:27:08,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:27:08,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:08,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:08,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:08,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:27:08,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:08,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:27:08,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:08,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:08,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:08,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:08,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:08,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:27:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:08,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:08,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:08,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:27:08,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:08,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 13:27:08,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:08,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:27:08,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:08,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 13:27:08,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:08,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:27:08,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:08,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:08,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:08,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:27:08,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:08,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:08,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:08,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:08,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:08,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:27:08,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:08,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:27:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:08,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:08,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:08,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:08,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:08,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 13:27:08,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:08,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:08,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:08,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:08,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:08,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:27:08,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:08,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:08,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:08,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:08,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:08,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 13:27:08,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:08,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:08,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:08,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:08,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:08,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:27:08,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:08,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:08,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:08,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:08,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:08,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 13:27:08,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:08,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:08,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:08,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:08,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:08,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:27:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:08,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:08,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:08,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:08,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:08,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 13:27:08,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:08,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:08,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:08,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:08,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 31 [2020-10-13 13:27:08,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:27:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:08,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:08,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:08,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:08,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:08,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:27:08,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:08,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:08,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:08,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:08,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:09,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:27:09,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:09,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:09,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:09,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:09,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:09,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 13:27:09,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:09,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:09,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:09,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:09,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:09,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:27:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:09,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:09,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:09,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:27:09,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:09,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:27:09,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:09,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:09,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:27:09,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:27:09,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:09,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:27:09,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1953428102] [2020-10-13 13:27:09,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:27:09,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-13 13:27:09,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505327534] [2020-10-13 13:27:09,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-13 13:27:09,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:27:09,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-13 13:27:09,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:27:09,161 INFO L87 Difference]: Start difference. First operand 224 states and 291 transitions. Second operand 22 states. [2020-10-13 13:27:09,537 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-13 13:27:09,736 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-13 13:27:09,911 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:27:10,068 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-13 13:27:10,237 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-13 13:27:10,409 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-13 13:27:10,768 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-13 13:27:11,069 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-13 13:27:11,707 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 13:27:11,925 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-13 13:27:12,094 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 13:27:12,690 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-13 13:27:13,689 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-13 13:27:14,250 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-13 13:27:14,735 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-13 13:27:15,317 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-13 13:27:15,673 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 152 [2020-10-13 13:27:16,083 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2020-10-13 13:27:16,523 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 150 [2020-10-13 13:27:17,140 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-13 13:27:18,511 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 153 [2020-10-13 13:27:19,663 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-10-13 13:27:19,879 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2020-10-13 13:27:20,058 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-10-13 13:27:21,401 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-10-13 13:27:21,605 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2020-10-13 13:27:21,798 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-13 13:27:23,021 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-10-13 13:27:23,227 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2020-10-13 13:27:23,424 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-13 13:27:24,658 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-10-13 13:27:24,859 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2020-10-13 13:27:25,064 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-13 13:27:26,199 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-10-13 13:27:26,404 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2020-10-13 13:27:26,597 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-13 13:27:27,281 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 89 [2020-10-13 13:27:27,560 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-10-13 13:27:28,106 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 148 [2020-10-13 13:27:28,436 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-13 13:27:29,170 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-10-13 13:27:29,512 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-13 13:27:29,857 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-13 13:27:30,189 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-13 13:27:30,446 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-13 13:27:30,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:27:30,817 INFO L93 Difference]: Finished difference Result 2497 states and 3549 transitions. [2020-10-13 13:27:30,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2020-10-13 13:27:30,818 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 113 [2020-10-13 13:27:30,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:27:30,835 INFO L225 Difference]: With dead ends: 2497 [2020-10-13 13:27:30,836 INFO L226 Difference]: Without dead ends: 2331 [2020-10-13 13:27:30,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7524 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=3357, Invalid=16949, Unknown=0, NotChecked=0, Total=20306 [2020-10-13 13:27:30,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2331 states. [2020-10-13 13:27:31,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2331 to 2116. [2020-10-13 13:27:31,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2116 states. [2020-10-13 13:27:31,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2116 states to 2116 states and 3020 transitions. [2020-10-13 13:27:31,075 INFO L78 Accepts]: Start accepts. Automaton has 2116 states and 3020 transitions. Word has length 113 [2020-10-13 13:27:31,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:27:31,076 INFO L479 AbstractCegarLoop]: Abstraction has 2116 states and 3020 transitions. [2020-10-13 13:27:31,076 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-13 13:27:31,076 INFO L276 IsEmpty]: Start isEmpty. Operand 2116 states and 3020 transitions. [2020-10-13 13:27:31,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-13 13:27:31,081 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:27:31,081 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] [2020-10-13 13:27:31,081 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 13:27:31,082 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:27:31,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:27:31,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1574539802, now seen corresponding path program 1 times [2020-10-13 13:27:31,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:27:31,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524982943] [2020-10-13 13:27:31,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:27:31,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:31,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:32,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:32,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 13:27:32,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:32,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1358 [2020-10-13 13:27:32,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:32,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:27:32,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 13:27:32,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 13:27:32,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:32,671 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:27:32,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:27:32,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:32,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:32,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:32,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:27:32,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:32,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:27:32,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:32,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:32,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:32,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:32,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:32,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:27:32,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:32,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:32,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:32,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:27:32,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:32,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-13 13:27:32,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:32,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:27:32,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:32,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 13:27:32,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:32,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:27:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:32,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:32,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:32,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:27:32,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:32,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:27:32,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:32,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:32,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:32,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:27:32,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:32,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:27:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:32,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:32,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:32,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:32,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:32,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 13:27:32,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:32,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:32,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:32,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:32,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:33,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:27:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:33,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:33,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:33,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:33,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:33,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 13:27:33,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:33,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:33,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:33,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:33,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:33,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:27:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:33,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:33,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:33,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:33,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:33,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 13:27:33,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:33,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:33,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:33,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:33,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:33,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:27:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:33,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:33,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:33,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:33,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:33,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 13:27:33,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:33,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:33,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:33,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:33,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:33,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:27:33,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:33,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:33,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:33,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:33,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:33,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 13:27:33,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:33,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:33,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:33,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:33,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:33,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:27:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:33,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:33,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:33,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:33,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:33,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 13:27:33,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:33,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:33,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:33,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:33,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:33,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:27:33,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:33,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:33,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:33,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:27:33,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:33,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:27:33,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:33,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:33,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 13:27:33,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:27:33,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:33,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:27:33,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524982943] [2020-10-13 13:27:33,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:27:33,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-13 13:27:33,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830391794] [2020-10-13 13:27:33,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-13 13:27:33,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:27:33,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-13 13:27:33,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:27:33,521 INFO L87 Difference]: Start difference. First operand 2116 states and 3020 transitions. Second operand 22 states. [2020-10-13 13:27:33,800 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-13 13:27:34,004 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:27:34,164 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:27:34,366 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 13:27:34,578 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-13 13:27:34,800 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-13 13:27:35,141 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-13 13:27:35,493 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-13 13:27:35,658 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-13 13:27:36,384 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 13:27:36,535 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-13 13:27:37,064 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-13 13:27:38,193 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-13 13:27:38,434 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-13 13:27:40,064 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-13 13:27:40,807 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-13 13:27:42,248 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-13 13:27:43,836 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 13:27:44,012 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-13 13:27:44,178 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-13 13:27:45,387 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 13:27:46,836 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 13:27:48,562 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-13 13:27:48,716 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 13:27:50,300 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-13 13:27:50,445 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-13 13:27:51,621 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 13:27:53,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:27:53,640 INFO L93 Difference]: Finished difference Result 5732 states and 8275 transitions. [2020-10-13 13:27:53,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2020-10-13 13:27:53,643 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 115 [2020-10-13 13:27:53,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:27:53,667 INFO L225 Difference]: With dead ends: 5732 [2020-10-13 13:27:53,668 INFO L226 Difference]: Without dead ends: 3674 [2020-10-13 13:27:53,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7300 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=3381, Invalid=16359, Unknown=0, NotChecked=0, Total=19740 [2020-10-13 13:27:53,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3674 states. [2020-10-13 13:27:54,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3674 to 3652. [2020-10-13 13:27:54,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3652 states. [2020-10-13 13:27:54,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 5258 transitions. [2020-10-13 13:27:54,055 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 5258 transitions. Word has length 115 [2020-10-13 13:27:54,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:27:54,056 INFO L479 AbstractCegarLoop]: Abstraction has 3652 states and 5258 transitions. [2020-10-13 13:27:54,056 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-13 13:27:54,056 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 5258 transitions. [2020-10-13 13:27:54,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-13 13:27:54,060 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:27:54,061 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] [2020-10-13 13:27:54,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 13:27:54,061 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:27:54,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:27:54,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1432725038, now seen corresponding path program 1 times [2020-10-13 13:27:54,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:27:54,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1063767353] [2020-10-13 13:27:54,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:27:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:54,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:54,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:54,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:54,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:54,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 13:27:54,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:27:54,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 800 [2020-10-13 13:27:54,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:54,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:54,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-10-13 13:27:54,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 13:27:54,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:55,054 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:27:55,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:27:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:55,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:55,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:55,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:27:55,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:55,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:27:55,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:55,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:55,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:55,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:55,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:55,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:27:55,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:55,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:55,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:55,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:27:55,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:55,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:27:55,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:55,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:55,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:55,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:55,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:55,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:27:55,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:55,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:55,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:55,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:27:55,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:55,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:27:55,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:55,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:55,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:55,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:55,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:55,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:27:55,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:55,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:55,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:55,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:55,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:55,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:55,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:55,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:55,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:55,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:55,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:55,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:27:55,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:55,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:55,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:55,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:55,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:55,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:27:55,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:55,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:55,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:55,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:55,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:55,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:27:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:55,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:55,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:55,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:55,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:55,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:27:55,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:55,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:55,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:55,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:55,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:55,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:27:55,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:55,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:55,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:55,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:55,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:55,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:27:55,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:55,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:55,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:55,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:55,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:55,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:27:55,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:55,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:55,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:55,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:55,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:55,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:55,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:55,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:55,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:55,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:55,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:55,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:27:55,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:55,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:55,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:55,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:55,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:55,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:27:55,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:55,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:55,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:55,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:55,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:55,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:27:55,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:55,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:55,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:55,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:27:55,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:55,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:27:55,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:55,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:55,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 13:27:55,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 13:27:55,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:55,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:27:55,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1063767353] [2020-10-13 13:27:55,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:27:55,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:27:55,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179210173] [2020-10-13 13:27:55,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:27:55,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:27:55,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:27:55,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:27:55,394 INFO L87 Difference]: Start difference. First operand 3652 states and 5258 transitions. Second operand 10 states. [2020-10-13 13:27:56,830 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-13 13:27:58,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:27:58,223 INFO L93 Difference]: Finished difference Result 10554 states and 15374 transitions. [2020-10-13 13:27:58,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 13:27:58,224 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 115 [2020-10-13 13:27:58,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:27:58,265 INFO L225 Difference]: With dead ends: 10554 [2020-10-13 13:27:58,265 INFO L226 Difference]: Without dead ends: 6960 [2020-10-13 13:27:58,280 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:27:58,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6960 states. [2020-10-13 13:27:58,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6960 to 6958. [2020-10-13 13:27:58,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6958 states. [2020-10-13 13:27:59,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6958 states to 6958 states and 9995 transitions. [2020-10-13 13:27:59,027 INFO L78 Accepts]: Start accepts. Automaton has 6958 states and 9995 transitions. Word has length 115 [2020-10-13 13:27:59,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:27:59,029 INFO L479 AbstractCegarLoop]: Abstraction has 6958 states and 9995 transitions. [2020-10-13 13:27:59,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:27:59,029 INFO L276 IsEmpty]: Start isEmpty. Operand 6958 states and 9995 transitions. [2020-10-13 13:27:59,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-13 13:27:59,032 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:27:59,032 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] [2020-10-13 13:27:59,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 13:27:59,033 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:27:59,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:27:59,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1767003862, now seen corresponding path program 1 times [2020-10-13 13:27:59,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:27:59,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1845373828] [2020-10-13 13:27:59,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:27:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:59,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:59,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:59,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:59,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:04,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:04,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 13:28:04,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:28:04,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-13 13:28:04,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:04,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:28:04,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-13 13:28:04,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 13:28:04,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:04,225 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:28:04,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:28:04,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:04,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:04,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:04,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:28:04,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:04,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:04,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:04,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:04,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:04,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:04,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:04,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:28:04,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:04,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:04,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:04,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:28:04,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:04,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:28:04,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:04,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:04,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:04,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:04,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:04,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:28:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:04,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:04,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:04,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:04,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:04,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:28:04,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:04,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:04,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:04,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:04,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:04,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:28:04,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:04,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:04,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:04,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:04,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:04,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:28:04,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:04,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:04,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:04,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:04,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:04,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:28:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:04,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:04,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:04,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:04,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:04,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:28:04,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:04,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:04,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:04,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:04,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:04,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:28:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:04,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:04,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:04,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:04,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:04,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:28:04,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:04,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:04,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:04,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:04,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:04,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:28:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:04,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:04,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:04,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:04,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:04,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:28:04,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:04,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:04,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:04,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:04,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:04,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:28:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:04,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:04,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:04,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:04,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:04,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:28:04,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:04,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:04,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:04,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:04,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:04,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:28:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:04,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:04,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:04,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:28:04,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:04,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:28:04,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:04,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:28:04,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:04,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:28:04,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:04,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 13:28:04,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:04,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:04,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:04,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:28:04,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:04,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:04,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:04,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:04,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:28:04,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:04,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:04,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:28:04,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1845373828] [2020-10-13 13:28:04,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:28:04,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:28:04,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034610193] [2020-10-13 13:28:04,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:28:04,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:28:04,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:28:04,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:28:04,621 INFO L87 Difference]: Start difference. First operand 6958 states and 9995 transitions. Second operand 13 states. [2020-10-13 13:28:05,033 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-13 13:28:05,855 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:28:06,374 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-13 13:28:07,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:28:07,391 INFO L93 Difference]: Finished difference Result 14627 states and 20827 transitions. [2020-10-13 13:28:07,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-13 13:28:07,392 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 115 [2020-10-13 13:28:07,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:28:07,437 INFO L225 Difference]: With dead ends: 14627 [2020-10-13 13:28:07,437 INFO L226 Difference]: Without dead ends: 7727 [2020-10-13 13:28:07,459 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=215, Invalid=597, Unknown=0, NotChecked=0, Total=812 [2020-10-13 13:28:07,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7727 states. [2020-10-13 13:28:08,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7727 to 7241. [2020-10-13 13:28:08,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7241 states. [2020-10-13 13:28:08,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7241 states to 7241 states and 10377 transitions. [2020-10-13 13:28:08,042 INFO L78 Accepts]: Start accepts. Automaton has 7241 states and 10377 transitions. Word has length 115 [2020-10-13 13:28:08,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:28:08,042 INFO L479 AbstractCegarLoop]: Abstraction has 7241 states and 10377 transitions. [2020-10-13 13:28:08,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:28:08,043 INFO L276 IsEmpty]: Start isEmpty. Operand 7241 states and 10377 transitions. [2020-10-13 13:28:08,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-13 13:28:08,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:28:08,050 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] [2020-10-13 13:28:08,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 13:28:08,050 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:28:08,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:28:08,050 INFO L82 PathProgramCache]: Analyzing trace with hash 243462510, now seen corresponding path program 1 times [2020-10-13 13:28:08,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:28:08,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1466621619] [2020-10-13 13:28:08,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:28:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:08,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:08,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:08,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:08,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:12,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:12,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 13:28:12,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:28:12,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4070 [2020-10-13 13:28:12,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:12,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:28:12,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-13 13:28:12,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 13:28:12,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:12,364 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:28:12,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:28:12,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:12,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:12,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:12,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:28:12,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:12,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:28:12,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:12,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:12,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:12,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:12,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:12,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:28:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:12,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:12,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:12,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:28:12,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:12,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:28:12,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:12,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:12,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:12,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:12,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:12,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:28:12,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:12,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:12,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:12,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:12,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:12,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:28:12,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:12,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:12,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:12,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:12,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:12,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:28:12,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:12,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:12,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:12,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:12,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:12,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:28:12,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:12,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:12,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:12,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:12,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:12,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:28:12,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:12,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:12,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:12,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:12,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:12,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:28:12,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:12,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:12,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:12,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:12,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:12,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:28:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:12,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:12,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:12,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:12,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:12,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:28:12,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:12,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:12,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:12,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:12,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:12,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:28:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:12,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:12,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:12,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:12,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:12,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:28:12,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:12,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:12,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:12,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:12,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:12,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:28:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:12,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:12,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:12,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:28:12,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:12,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 13:28:12,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:12,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:28:12,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:12,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:28:12,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:12,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-13 13:28:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:12,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:12,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:12,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:12,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:12,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:12,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:12,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:12,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:12,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:12,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:12,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 13:28:12,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:12,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:12,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:12,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:28:12,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:12,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:12,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:12,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:12,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:28:12,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:12,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:12,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:28:12,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1466621619] [2020-10-13 13:28:12,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:28:12,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:28:12,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806035830] [2020-10-13 13:28:12,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:28:12,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:28:12,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:28:12,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:28:12,684 INFO L87 Difference]: Start difference. First operand 7241 states and 10377 transitions. Second operand 13 states. [2020-10-13 13:28:13,091 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-13 13:28:13,848 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:28:15,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:28:15,642 INFO L93 Difference]: Finished difference Result 15761 states and 22428 transitions. [2020-10-13 13:28:15,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-13 13:28:15,643 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 115 [2020-10-13 13:28:15,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:28:15,701 INFO L225 Difference]: With dead ends: 15761 [2020-10-13 13:28:15,701 INFO L226 Difference]: Without dead ends: 8738 [2020-10-13 13:28:15,723 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=215, Invalid=597, Unknown=0, NotChecked=0, Total=812 [2020-10-13 13:28:15,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8738 states. [2020-10-13 13:28:16,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8738 to 7358. [2020-10-13 13:28:16,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7358 states. [2020-10-13 13:28:16,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7358 states to 7358 states and 10533 transitions. [2020-10-13 13:28:16,415 INFO L78 Accepts]: Start accepts. Automaton has 7358 states and 10533 transitions. Word has length 115 [2020-10-13 13:28:16,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:28:16,416 INFO L479 AbstractCegarLoop]: Abstraction has 7358 states and 10533 transitions. [2020-10-13 13:28:16,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:28:16,416 INFO L276 IsEmpty]: Start isEmpty. Operand 7358 states and 10533 transitions. [2020-10-13 13:28:16,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-13 13:28:16,418 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:28:16,418 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] [2020-10-13 13:28:16,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 13:28:16,418 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:28:16,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:28:16,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1740761610, now seen corresponding path program 1 times [2020-10-13 13:28:16,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:28:16,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1258620767] [2020-10-13 13:28:16,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:28:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:16,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:16,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:16,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:17,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:20,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:20,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 13:28:20,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:28:20,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3696 [2020-10-13 13:28:20,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:20,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:28:20,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-13 13:28:20,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 13:28:20,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:20,324 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:28:20,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:28:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:20,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:20,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:20,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:28:20,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:20,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:28:20,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:20,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:20,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:20,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:20,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:20,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:28:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:20,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:20,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:20,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:28:20,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:20,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:28:20,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:20,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:20,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:20,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:20,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:20,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:28:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:20,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:20,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:20,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:20,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:20,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:28:20,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:20,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:20,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:20,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:20,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:20,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:28:20,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:20,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:20,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:20,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:20,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:20,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:28:20,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:20,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:20,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:20,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:20,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:20,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:28:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:20,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:20,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:20,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:20,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:20,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:28:20,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:20,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:20,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:20,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:20,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:20,674 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-10-13 13:28:20,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:28:20,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:20,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:20,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:20,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:20,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:20,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:28:20,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:20,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:20,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:20,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:20,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:20,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:28:20,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:20,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:20,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:20,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:28:20,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:20,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:28:20,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:20,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:28:20,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:20,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:28:20,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:20,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-13 13:28:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:20,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:20,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:20,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:20,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:20,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:20,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:20,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:20,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:20,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:20,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:20,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-13 13:28:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:20,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:20,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:20,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:20,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:20,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:20,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:20,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:20,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:20,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:20,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:20,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 13:28:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:20,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:20,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:20,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:28:20,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:20,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:28:20,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:20,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:20,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:28:20,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:20,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:20,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:28:20,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1258620767] [2020-10-13 13:28:20,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:28:20,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:28:20,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404469591] [2020-10-13 13:28:20,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:28:20,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:28:20,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:28:20,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:28:20,852 INFO L87 Difference]: Start difference. First operand 7358 states and 10533 transitions. Second operand 13 states. [2020-10-13 13:28:21,253 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-13 13:28:21,803 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:28:23,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:28:23,818 INFO L93 Difference]: Finished difference Result 17210 states and 24534 transitions. [2020-10-13 13:28:23,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-13 13:28:23,819 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 115 [2020-10-13 13:28:23,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:28:23,870 INFO L225 Difference]: With dead ends: 17210 [2020-10-13 13:28:23,870 INFO L226 Difference]: Without dead ends: 10005 [2020-10-13 13:28:23,905 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=215, Invalid=597, Unknown=0, NotChecked=0, Total=812 [2020-10-13 13:28:23,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10005 states. [2020-10-13 13:28:24,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10005 to 7431. [2020-10-13 13:28:24,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7431 states. [2020-10-13 13:28:24,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7431 states to 7431 states and 10634 transitions. [2020-10-13 13:28:24,541 INFO L78 Accepts]: Start accepts. Automaton has 7431 states and 10634 transitions. Word has length 115 [2020-10-13 13:28:24,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:28:24,541 INFO L479 AbstractCegarLoop]: Abstraction has 7431 states and 10634 transitions. [2020-10-13 13:28:24,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:28:24,542 INFO L276 IsEmpty]: Start isEmpty. Operand 7431 states and 10634 transitions. [2020-10-13 13:28:24,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-13 13:28:24,543 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:28:24,543 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] [2020-10-13 13:28:24,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 13:28:24,543 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:28:24,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:28:24,544 INFO L82 PathProgramCache]: Analyzing trace with hash 12922870, now seen corresponding path program 1 times [2020-10-13 13:28:24,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:28:24,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1765013651] [2020-10-13 13:28:24,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:28:24,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:24,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:24,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:24,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:24,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:27,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:27,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 13:28:27,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:28:27,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3181 [2020-10-13 13:28:27,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:27,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:28:27,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-13 13:28:27,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 13:28:27,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:27,938 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:28:27,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:28:27,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:27,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:27,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:27,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:28:27,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:27,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:28:27,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:27,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:27,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:27,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:27,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:27,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:28:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:27,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:27,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:27,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:28:27,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:27,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:28:27,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:27,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:27,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:27,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:27,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:27,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:28:27,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:27,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:27,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:27,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:27,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:27,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:28:27,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:27,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:27,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:27,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:27,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:28,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:28:28,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:28,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:28,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:28,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:28,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:28,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:28:28,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:28,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:28,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:28,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:28,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:28,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:28:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:28,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:28,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:28,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:28:28,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:28,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:28:28,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:28,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:28:28,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:28,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:28:28,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:28,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-13 13:28:28,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:28,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:28,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:28,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:28,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:28,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:28,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:28,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:28,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:28,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:28,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:28,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 13:28:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:28,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:28,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:28,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:28,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:28,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:28:28,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:28,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:28,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:28,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:28,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:28,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-13 13:28:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:28,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:28,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:28,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:28,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:28,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:28:28,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:28,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:28,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:28,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:28,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:28,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-13 13:28:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:28,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:28,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:28,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:28,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:28,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:28:28,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:28,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:28,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:28,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:28,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:28,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 13:28:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:28,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:28,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:28,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:28:28,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:28,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:28,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:28,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:28,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:28:28,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:28,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:28,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:28:28,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1765013651] [2020-10-13 13:28:28,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:28:28,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:28:28,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788492524] [2020-10-13 13:28:28,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:28:28,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:28:28,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:28:28,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:28:28,320 INFO L87 Difference]: Start difference. First operand 7431 states and 10634 transitions. Second operand 13 states. [2020-10-13 13:28:28,707 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-13 13:28:28,990 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:28:31,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:28:31,565 INFO L93 Difference]: Finished difference Result 19199 states and 27419 transitions. [2020-10-13 13:28:31,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-13 13:28:31,566 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 115 [2020-10-13 13:28:31,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:28:31,605 INFO L225 Difference]: With dead ends: 19199 [2020-10-13 13:28:31,606 INFO L226 Difference]: Without dead ends: 11853 [2020-10-13 13:28:31,625 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=215, Invalid=597, Unknown=0, NotChecked=0, Total=812 [2020-10-13 13:28:31,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11853 states. [2020-10-13 13:28:32,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11853 to 7744. [2020-10-13 13:28:32,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7744 states. [2020-10-13 13:28:32,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7744 states to 7744 states and 11070 transitions. [2020-10-13 13:28:32,274 INFO L78 Accepts]: Start accepts. Automaton has 7744 states and 11070 transitions. Word has length 115 [2020-10-13 13:28:32,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:28:32,274 INFO L479 AbstractCegarLoop]: Abstraction has 7744 states and 11070 transitions. [2020-10-13 13:28:32,274 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:28:32,274 INFO L276 IsEmpty]: Start isEmpty. Operand 7744 states and 11070 transitions. [2020-10-13 13:28:32,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-13 13:28:32,276 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:28:32,276 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] [2020-10-13 13:28:32,276 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 13:28:32,276 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:28:32,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:28:32,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1957597138, now seen corresponding path program 1 times [2020-10-13 13:28:32,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:28:32,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1399815386] [2020-10-13 13:28:32,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:28:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:32,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:32,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:32,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:33,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:36,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:36,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 13:28:36,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:28:36,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4565 [2020-10-13 13:28:36,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:36,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:28:36,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-13 13:28:36,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:36,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,048 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:28:37,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:28:37,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:28:37,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:28:37,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:37,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:37,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:37,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:28:37,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:28:37,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:28:37,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:37,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:37,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:37,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:37,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:28:37,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:37,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:28:37,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:37,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:37,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:37,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:28:37,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:28:37,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:28:37,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:28:37,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:37,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:28:37,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 13:28:37,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:37,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:37,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:37,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:37,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:37,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-13 13:28:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:37,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:28:37,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:37,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:37,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:37,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 13:28:37,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:37,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:28:37,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:37,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:37,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:37,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-13 13:28:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:37,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:37,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:37,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:37,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:37,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-13 13:28:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:37,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:37,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:37,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:37,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:37,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 13:28:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:37,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:37,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:37,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:28:37,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:37,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:37,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:37,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:37,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:28:37,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:37,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:37,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:28:37,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1399815386] [2020-10-13 13:28:37,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:28:37,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:28:37,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435209443] [2020-10-13 13:28:37,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:28:37,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:28:37,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:28:37,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:28:37,342 INFO L87 Difference]: Start difference. First operand 7744 states and 11070 transitions. Second operand 13 states. [2020-10-13 13:28:37,736 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-13 13:28:37,885 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:28:40,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:28:40,349 INFO L93 Difference]: Finished difference Result 18643 states and 26695 transitions. [2020-10-13 13:28:40,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-13 13:28:40,349 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 115 [2020-10-13 13:28:40,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:28:40,379 INFO L225 Difference]: With dead ends: 18643 [2020-10-13 13:28:40,379 INFO L226 Difference]: Without dead ends: 10964 [2020-10-13 13:28:40,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=215, Invalid=597, Unknown=0, NotChecked=0, Total=812 [2020-10-13 13:28:40,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10964 states. [2020-10-13 13:28:41,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10964 to 8084. [2020-10-13 13:28:41,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8084 states. [2020-10-13 13:28:41,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8084 states to 8084 states and 11575 transitions. [2020-10-13 13:28:41,039 INFO L78 Accepts]: Start accepts. Automaton has 8084 states and 11575 transitions. Word has length 115 [2020-10-13 13:28:41,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:28:41,039 INFO L479 AbstractCegarLoop]: Abstraction has 8084 states and 11575 transitions. [2020-10-13 13:28:41,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:28:41,039 INFO L276 IsEmpty]: Start isEmpty. Operand 8084 states and 11575 transitions. [2020-10-13 13:28:41,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-13 13:28:41,040 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:28:41,040 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] [2020-10-13 13:28:41,040 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 13:28:41,040 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:28:41,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:28:41,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1201603998, now seen corresponding path program 1 times [2020-10-13 13:28:41,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:28:41,041 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [93173775] [2020-10-13 13:28:41,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:28:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:41,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:41,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:41,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-13 13:28:41,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:41,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 461 [2020-10-13 13:28:41,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:41,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:28:41,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 131 [2020-10-13 13:28:41,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:28:41,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:41,741 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:28:41,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:28:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:41,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:41,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:41,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:28:41,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:41,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:28:41,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:41,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:41,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:41,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:41,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:41,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:28:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:41,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:41,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:41,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:28:41,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:41,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:41,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:41,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:41,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:41,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:41,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:41,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:28:41,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:41,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:41,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:41,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:41,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:41,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:28:41,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:41,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:41,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:41,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:41,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:41,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:28:41,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:41,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:41,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:41,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:41,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:41,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:41,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:41,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:41,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:41,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:41,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:41,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:28:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:41,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:41,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:41,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:41,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:41,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:41,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:41,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:41,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:41,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:41,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:41,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:28:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:41,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:41,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:41,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:41,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:41,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:41,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:41,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:41,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:41,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:41,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:41,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:28:41,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:41,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:41,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:41,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:41,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:41,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:28:41,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:41,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:41,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:41,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:41,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:41,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:28:41,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:41,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:41,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:41,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:41,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:41,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:41,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:41,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:41,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:41,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:41,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:41,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:28:41,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:41,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:41,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:41,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:41,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:41,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:28:41,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:41,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:41,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:41,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:41,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:41,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:28:41,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:41,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:41,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:41,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:28:41,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:41,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:41,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:41,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:41,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:41,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:28:41,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:42,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:28:42,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [93173775] [2020-10-13 13:28:42,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:28:42,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-13 13:28:42,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307103340] [2020-10-13 13:28:42,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-13 13:28:42,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:28:42,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-13 13:28:42,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-13 13:28:42,008 INFO L87 Difference]: Start difference. First operand 8084 states and 11575 transitions. Second operand 15 states. [2020-10-13 13:28:43,403 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:28:43,589 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-13 13:28:43,852 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-13 13:28:44,025 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 13:28:44,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:28:44,791 INFO L93 Difference]: Finished difference Result 8968 states and 13627 transitions. [2020-10-13 13:28:44,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 13:28:44,792 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 116 [2020-10-13 13:28:44,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:28:44,825 INFO L225 Difference]: With dead ends: 8968 [2020-10-13 13:28:44,825 INFO L226 Difference]: Without dead ends: 8966 [2020-10-13 13:28:44,831 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=153, Invalid=497, Unknown=0, NotChecked=0, Total=650 [2020-10-13 13:28:44,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8966 states. [2020-10-13 13:28:45,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8966 to 8264. [2020-10-13 13:28:45,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8264 states. [2020-10-13 13:28:45,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8264 states to 8264 states and 11765 transitions. [2020-10-13 13:28:45,392 INFO L78 Accepts]: Start accepts. Automaton has 8264 states and 11765 transitions. Word has length 116 [2020-10-13 13:28:45,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:28:45,392 INFO L479 AbstractCegarLoop]: Abstraction has 8264 states and 11765 transitions. [2020-10-13 13:28:45,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-13 13:28:45,393 INFO L276 IsEmpty]: Start isEmpty. Operand 8264 states and 11765 transitions. [2020-10-13 13:28:45,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-13 13:28:45,394 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:28:45,394 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] [2020-10-13 13:28:45,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 13:28:45,395 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:28:45,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:28:45,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1445938337, now seen corresponding path program 1 times [2020-10-13 13:28:45,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:28:45,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [820352730] [2020-10-13 13:28:45,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:28:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:45,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:45,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:45,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:45,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-13 13:28:45,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:28:45,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-10-13 13:28:45,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:45,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:45,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 13:28:45,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-13 13:28:45,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:45,796 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:28:45,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:28:45,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:45,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:45,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:45,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:28:45,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:45,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:45,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:45,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:45,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:45,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:45,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:45,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:28:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:45,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:45,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:45,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:28:45,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:45,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:28:45,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:45,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:45,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:45,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 13:28:45,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:45,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:28:45,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:45,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:45,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:45,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:45,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:45,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:28:45,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:45,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:45,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:45,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:28:45,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:45,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:28:45,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:45,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:45,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:45,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:45,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:45,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:28:45,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:45,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:45,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:45,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:28:45,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:45,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:28:45,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:45,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:45,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:45,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:45,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:45,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:45,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:45,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:45,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:45,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:45,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:45,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:28:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:45,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:45,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:45,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:45,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:45,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:45,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:45,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:45,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:45,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:45,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:45,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:28:45,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:45,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:45,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:45,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:45,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:45,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:45,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:45,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:45,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:45,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:45,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:45,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:28:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:46,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:46,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:46,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:46,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:46,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:46,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:46,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:46,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:46,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:46,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:46,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:28:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:46,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:46,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:46,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:46,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:46,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:46,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:46,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:46,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:46,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:46,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:46,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:28:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:46,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:46,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:46,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:46,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:28:46,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:28:46,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:28:46,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:46,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:46,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 13:28:46,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:28:46,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:46,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:28:46,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [820352730] [2020-10-13 13:28:46,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:28:46,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 13:28:46,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823763856] [2020-10-13 13:28:46,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 13:28:46,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:28:46,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 13:28:46,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-13 13:28:46,077 INFO L87 Difference]: Start difference. First operand 8264 states and 11765 transitions. Second operand 12 states. [2020-10-13 13:28:46,246 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-13 13:28:47,987 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-13 13:28:48,412 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 81 [2020-10-13 13:28:49,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:28:49,965 INFO L93 Difference]: Finished difference Result 19482 states and 27867 transitions. [2020-10-13 13:28:49,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-13 13:28:49,966 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 116 [2020-10-13 13:28:49,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:28:50,007 INFO L225 Difference]: With dead ends: 19482 [2020-10-13 13:28:50,007 INFO L226 Difference]: Without dead ends: 11326 [2020-10-13 13:28:50,027 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=263, Invalid=793, Unknown=0, NotChecked=0, Total=1056 [2020-10-13 13:28:50,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11326 states. [2020-10-13 13:28:50,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11326 to 11322. [2020-10-13 13:28:50,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11322 states. [2020-10-13 13:28:51,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11322 states to 11322 states and 16096 transitions. [2020-10-13 13:28:51,003 INFO L78 Accepts]: Start accepts. Automaton has 11322 states and 16096 transitions. Word has length 116 [2020-10-13 13:28:51,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:28:51,003 INFO L479 AbstractCegarLoop]: Abstraction has 11322 states and 16096 transitions. [2020-10-13 13:28:51,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 13:28:51,004 INFO L276 IsEmpty]: Start isEmpty. Operand 11322 states and 16096 transitions. [2020-10-13 13:28:51,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-13 13:28:51,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:28:51,006 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] [2020-10-13 13:28:51,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 13:28:51,006 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:28:51,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:28:51,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1841817515, now seen corresponding path program 1 times [2020-10-13 13:28:51,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:28:51,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [965900745] [2020-10-13 13:28:51,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:28:51,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:51,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:51,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:51,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:51,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:51,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-13 13:28:51,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:28:51,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 644 [2020-10-13 13:28:51,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:51,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:51,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-13 13:28:51,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-13 13:28:51,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:51,980 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:28:51,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:28:51,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:51,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:51,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:51,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:28:51,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:51,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:51,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:51,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:51,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:51,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:51,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:51,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:28:51,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:51,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:52,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:52,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:28:52,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:52,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:28:52,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:52,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:52,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:52,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:28:52,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:52,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:28:52,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:52,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:52,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:52,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:52,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:52,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:52,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:52,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:52,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:52,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:28:52,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:52,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:28:52,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:52,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:52,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:52,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:52,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:52,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:28:52,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:52,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:52,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:52,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:28:52,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:52,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:28:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:52,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:52,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:52,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:52,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:52,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:28:52,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:52,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:52,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:52,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:52,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:52,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:28:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:52,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:52,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:52,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:52,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:52,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:52,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:52,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:52,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:52,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:52,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:52,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:28:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:52,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:52,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:52,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:52,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:52,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:28:52,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:52,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:52,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:52,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:52,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:52,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:28:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:52,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:52,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:52,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:52,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:52,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:28:52,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:52,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:52,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:52,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:52,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:52,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:28:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:52,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:52,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:52,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:52,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:52,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:52,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:52,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:52,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:52,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:52,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:52,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:28:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:52,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:52,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:52,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:28:52,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:52,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:28:52,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:52,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:52,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:28:52,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:52,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:52,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:28:52,250 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [965900745] [2020-10-13 13:28:52,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:28:52,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 13:28:52,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403273369] [2020-10-13 13:28:52,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 13:28:52,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:28:52,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 13:28:52,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-13 13:28:52,253 INFO L87 Difference]: Start difference. First operand 11322 states and 16096 transitions. Second operand 12 states. [2020-10-13 13:28:52,431 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-13 13:28:55,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:28:55,545 INFO L93 Difference]: Finished difference Result 23048 states and 32793 transitions. [2020-10-13 13:28:55,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 13:28:55,548 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 116 [2020-10-13 13:28:55,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:28:55,593 INFO L225 Difference]: With dead ends: 23048 [2020-10-13 13:28:55,593 INFO L226 Difference]: Without dead ends: 14848 [2020-10-13 13:28:55,607 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=177, Invalid=473, Unknown=0, NotChecked=0, Total=650 [2020-10-13 13:28:55,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14848 states. [2020-10-13 13:28:56,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14848 to 14284. [2020-10-13 13:28:56,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14284 states. [2020-10-13 13:28:56,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14284 states to 14284 states and 20066 transitions. [2020-10-13 13:28:56,582 INFO L78 Accepts]: Start accepts. Automaton has 14284 states and 20066 transitions. Word has length 116 [2020-10-13 13:28:56,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:28:56,583 INFO L479 AbstractCegarLoop]: Abstraction has 14284 states and 20066 transitions. [2020-10-13 13:28:56,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 13:28:56,583 INFO L276 IsEmpty]: Start isEmpty. Operand 14284 states and 20066 transitions. [2020-10-13 13:28:56,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-13 13:28:56,590 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:28:56,591 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:28:56,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 13:28:56,591 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:28:56,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:28:56,591 INFO L82 PathProgramCache]: Analyzing trace with hash 383294076, now seen corresponding path program 1 times [2020-10-13 13:28:56,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:28:56,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1650942836] [2020-10-13 13:28:56,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:28:56,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:56,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:56,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:56,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:56,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:59,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:59,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:59,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:01,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:01,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-13 13:29:01,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:29:01,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-13 13:29:01,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:01,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:29:01,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-13 13:29:01,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 13:29:01,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:01,820 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:29:01,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:29:01,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:01,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:01,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:01,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:29:01,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:01,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:29:01,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:01,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:01,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:01,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:01,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:01,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:29:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:01,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:01,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:01,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:29:01,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:01,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:29:01,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:01,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:01,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:01,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:01,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:01,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:29:01,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:01,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:01,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:01,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:29:01,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:01,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:29:01,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:01,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:01,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:01,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:01,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:01,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:29:01,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:01,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:01,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:01,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:01,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:01,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:29:01,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:01,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:01,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:01,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:01,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:01,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:29:01,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:01,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:01,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:01,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:01,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:01,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:29:01,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:01,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:01,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:01,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:01,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:01,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:29:01,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:01,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:01,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:01,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:01,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:01,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:29:01,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:01,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:01,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:01,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:01,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:01,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:29:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:01,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:01,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:01,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:01,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:01,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:29:01,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:01,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:01,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:01,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:29:01,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:01,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:29:01,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:01,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:01,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:01,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:01,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:01,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:29:01,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:01,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:01,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:01,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:29:01,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:02,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:29:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:02,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:02,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:02,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:02,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:02,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:29:02,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:02,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:02,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:02,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:29:02,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:02,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:29:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:02,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:02,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:02,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:29:02,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:02,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:29:02,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:02,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:02,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:02,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:29:02,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:02,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-13 13:29:02,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:02,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:02,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:02,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:29:02,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:02,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:29:02,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:02,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:02,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:02,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:29:02,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:02,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-13 13:29:02,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:02,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:02,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:02,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:02,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:02,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:29:02,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:02,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:02,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:02,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:29:02,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:02,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-13 13:29:02,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:02,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:02,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:02,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:02,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:02,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:29:02,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:02,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:02,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:02,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:29:02,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:02,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-13 13:29:02,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:02,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:02,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:02,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:02,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:02,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:29:02,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:02,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:02,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:02,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:29:02,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:02,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 13:29:02,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:02,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:02,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:02,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:02,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:02,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:29:02,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:02,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:29:02,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:29:02,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:29:02,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:02,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-13 13:29:02,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:02,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:02,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:02,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:02,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:02,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:29:02,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:02,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:02,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:29:02,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:02,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:02,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-13 13:29:02,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:02,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:02,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:02,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:29:02,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:02,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:29:02,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:02,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:02,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:29:02,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:02,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:02,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-13 13:29:02,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:02,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:02,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:02,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:29:02,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:02,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:29:02,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:02,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:02,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:29:02,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:02,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:02,148 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-13 13:29:02,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1650942836] [2020-10-13 13:29:02,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:29:02,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 13:29:02,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148530894] [2020-10-13 13:29:02,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 13:29:02,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:29:02,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 13:29:02,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-13 13:29:02,150 INFO L87 Difference]: Start difference. First operand 14284 states and 20066 transitions. Second operand 12 states. [2020-10-13 13:29:02,396 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-13 13:29:03,144 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-13 13:29:03,489 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:29:08,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:29:08,792 INFO L93 Difference]: Finished difference Result 42250 states and 59782 transitions. [2020-10-13 13:29:08,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 13:29:08,793 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 175 [2020-10-13 13:29:08,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:29:08,870 INFO L225 Difference]: With dead ends: 42250 [2020-10-13 13:29:08,870 INFO L226 Difference]: Without dead ends: 28075 [2020-10-13 13:29:08,898 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=205, Invalid=551, Unknown=0, NotChecked=0, Total=756 [2020-10-13 13:29:08,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28075 states. [2020-10-13 13:29:10,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28075 to 27379. [2020-10-13 13:29:10,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27379 states. [2020-10-13 13:29:10,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27379 states to 27379 states and 38320 transitions. [2020-10-13 13:29:10,678 INFO L78 Accepts]: Start accepts. Automaton has 27379 states and 38320 transitions. Word has length 175 [2020-10-13 13:29:10,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:29:10,678 INFO L479 AbstractCegarLoop]: Abstraction has 27379 states and 38320 transitions. [2020-10-13 13:29:10,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 13:29:10,678 INFO L276 IsEmpty]: Start isEmpty. Operand 27379 states and 38320 transitions. [2020-10-13 13:29:10,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-13 13:29:10,690 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:29:10,690 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:29:10,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 13:29:10,690 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:29:10,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:29:10,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1170495900, now seen corresponding path program 1 times [2020-10-13 13:29:10,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:29:10,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1679404173] [2020-10-13 13:29:10,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:29:10,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:10,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:10,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:10,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:11,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:11,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:12,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:12,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:15,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:15,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-13 13:29:15,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:29:15,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-13 13:29:15,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:15,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:29:15,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-13 13:29:15,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 13:29:15,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:15,885 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:29:15,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:29:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:15,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:15,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:15,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:29:15,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:15,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:29:15,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:15,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:15,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:15,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:15,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:15,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:29:15,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:15,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:15,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:15,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:29:15,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:15,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:29:15,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:15,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:15,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:15,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:15,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:15,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:29:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:15,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:15,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:15,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:29:15,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:15,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:29:15,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:15,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:15,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:15,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:15,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:15,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:29:15,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:15,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:15,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:15,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:15,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:15,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:29:15,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:15,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:15,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:15,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:29:15,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:15,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:29:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:15,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:15,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:15,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:15,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:15,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:29:15,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:15,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:15,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:15,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:29:15,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:15,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:29:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:15,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:15,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:15,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:15,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:15,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:29:15,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:15,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:15,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:15,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:29:15,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:16,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:29:16,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:16,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:16,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:16,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:16,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:16,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:29:16,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:16,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:16,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:16,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:29:16,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:16,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:29:16,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:16,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:16,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:16,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:16,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:16,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:29:16,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:16,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:16,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:16,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:29:16,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:16,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:29:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:16,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:16,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:16,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:16,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:16,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:29:16,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:16,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:16,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:16,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:29:16,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:16,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:29:16,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:16,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:16,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:16,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:29:16,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:16,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:29:16,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:16,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:16,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:16,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:29:16,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:16,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-13 13:29:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:16,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:16,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:16,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:29:16,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:16,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:29:16,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:16,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:16,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:16,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:29:16,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:16,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-13 13:29:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:16,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:16,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:16,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:16,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:16,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:29:16,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:16,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:29:16,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:29:16,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:29:16,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:16,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-13 13:29:16,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:16,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:16,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:16,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:16,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:16,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:29:16,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:16,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:16,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:29:16,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:16,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:16,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-13 13:29:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:16,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:16,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:16,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:16,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:16,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:29:16,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:16,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:16,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:29:16,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:16,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:16,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 13:29:16,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:16,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:16,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:16,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:29:16,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:16,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:29:16,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:16,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:16,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:29:16,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:16,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:16,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-13 13:29:16,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:16,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:16,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:16,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:16,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:16,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:29:16,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:16,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:16,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:29:16,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:16,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:16,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-13 13:29:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:16,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:16,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:16,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:16,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:16,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:29:16,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:16,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:16,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:29:16,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:16,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:16,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-13 13:29:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:16,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:16,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:16,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:29:16,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:16,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:29:16,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:16,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:16,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:29:16,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:16,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:16,171 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-13 13:29:16,171 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1679404173] [2020-10-13 13:29:16,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:29:16,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 13:29:16,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938044904] [2020-10-13 13:29:16,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 13:29:16,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:29:16,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 13:29:16,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-13 13:29:16,179 INFO L87 Difference]: Start difference. First operand 27379 states and 38320 transitions. Second operand 12 states. [2020-10-13 13:29:16,369 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-13 13:29:16,812 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:29:20,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:29:20,131 INFO L93 Difference]: Finished difference Result 48659 states and 68048 transitions. [2020-10-13 13:29:20,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 13:29:20,131 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 175 [2020-10-13 13:29:20,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:29:20,172 INFO L225 Difference]: With dead ends: 48659 [2020-10-13 13:29:20,172 INFO L226 Difference]: Without dead ends: 21409 [2020-10-13 13:29:20,199 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=192, Invalid=510, Unknown=0, NotChecked=0, Total=702 [2020-10-13 13:29:20,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21409 states. [2020-10-13 13:29:21,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21409 to 20701. [2020-10-13 13:29:21,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20701 states. [2020-10-13 13:29:21,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20701 states to 20701 states and 28608 transitions. [2020-10-13 13:29:21,513 INFO L78 Accepts]: Start accepts. Automaton has 20701 states and 28608 transitions. Word has length 175 [2020-10-13 13:29:21,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:29:21,513 INFO L479 AbstractCegarLoop]: Abstraction has 20701 states and 28608 transitions. [2020-10-13 13:29:21,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 13:29:21,513 INFO L276 IsEmpty]: Start isEmpty. Operand 20701 states and 28608 transitions. [2020-10-13 13:29:21,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-13 13:29:21,520 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:29:21,521 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:29:21,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 13:29:21,521 INFO L427 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:29:21,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:29:21,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1033491118, now seen corresponding path program 1 times [2020-10-13 13:29:21,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:29:21,522 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [404641286] [2020-10-13 13:29:21,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:29:21,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:21,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:21,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:21,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:22,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:22,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:24,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:26,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:26,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-13 13:29:26,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 13:29:26,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-13 13:29:26,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:26,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:29:26,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-13 13:29:26,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 13:29:26,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:26,732 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:29:26,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:29:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:26,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:26,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:26,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:29:26,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:26,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:29:26,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:26,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:26,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:26,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:26,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:26,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:29:26,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:26,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:26,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:26,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:29:26,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:26,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:29:26,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:26,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:26,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:26,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:26,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:26,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:29:26,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:26,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:26,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:26,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:29:26,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:26,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:29:26,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:26,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:26,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:26,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:26,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:26,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:29:26,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:26,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:26,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:26,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:26,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:26,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:29:26,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:26,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:26,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:26,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:26,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:26,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:29:26,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:26,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:26,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:26,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:26,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:26,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:29:26,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:26,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:26,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:26,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:29:26,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:26,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:29:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:26,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:26,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:26,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:26,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:26,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:29:26,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:26,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:26,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:26,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:29:26,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:26,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:29:26,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:26,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:26,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:26,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:26,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:26,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:29:26,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:26,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:26,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:26,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:29:26,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:26,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:29:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:26,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:26,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:26,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:26,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:26,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:29:26,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:26,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:26,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:26,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:29:26,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:26,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:29:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:26,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:26,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:26,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:26,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:26,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:29:26,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:26,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:26,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:26,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:29:26,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:26,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:29:26,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:26,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:26,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:26,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:29:26,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:26,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:29:26,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:26,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:26,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:26,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:29:26,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:26,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-13 13:29:26,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:26,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:26,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:26,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:29:26,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:26,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:29:26,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:26,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:26,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:26,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:29:26,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:26,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-13 13:29:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:26,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:26,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:26,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:26,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:26,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:29:26,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:26,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:26,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:26,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:29:26,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:26,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-13 13:29:26,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:26,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:26,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:26,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:26,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:26,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:29:26,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:26,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:29:26,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:29:26,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:29:26,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:26,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-13 13:29:26,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:26,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:26,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:26,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:26,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:26,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:29:26,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:26,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:26,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:29:26,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:26,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:26,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 13:29:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:26,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:26,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:26,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:29:26,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:26,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:29:26,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:26,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:26,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:29:26,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:26,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:26,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-13 13:29:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:26,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:26,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:26,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:26,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:26,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:29:26,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:26,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:26,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:29:26,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:26,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:26,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-13 13:29:26,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:26,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:27,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:27,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:27,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:27,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:29:27,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:27,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:27,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:29:27,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:27,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:27,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-13 13:29:27,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:27,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:27,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:27,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:29:27,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:27,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:29:27,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:27,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:27,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:29:27,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:27,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:27,033 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-13 13:29:27,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [404641286] [2020-10-13 13:29:27,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:29:27,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 13:29:27,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477030105] [2020-10-13 13:29:27,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 13:29:27,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:29:27,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 13:29:27,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-13 13:29:27,040 INFO L87 Difference]: Start difference. First operand 20701 states and 28608 transitions. Second operand 12 states. [2020-10-13 13:29:27,264 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-13 13:29:27,969 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:29:31,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:29:31,583 INFO L93 Difference]: Finished difference Result 61313 states and 85301 transitions. [2020-10-13 13:29:31,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 13:29:31,584 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 175 [2020-10-13 13:29:31,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:29:31,678 INFO L225 Difference]: With dead ends: 61313 [2020-10-13 13:29:31,678 INFO L226 Difference]: Without dead ends: 40761 [2020-10-13 13:29:31,710 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=205, Invalid=551, Unknown=0, NotChecked=0, Total=756 [2020-10-13 13:29:31,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40761 states. [2020-10-13 13:29:34,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40761 to 39731. [2020-10-13 13:29:34,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39731 states. [2020-10-13 13:29:34,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39731 states to 39731 states and 54587 transitions. [2020-10-13 13:29:34,419 INFO L78 Accepts]: Start accepts. Automaton has 39731 states and 54587 transitions. Word has length 175 [2020-10-13 13:29:34,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:29:34,419 INFO L479 AbstractCegarLoop]: Abstraction has 39731 states and 54587 transitions. [2020-10-13 13:29:34,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 13:29:34,419 INFO L276 IsEmpty]: Start isEmpty. Operand 39731 states and 54587 transitions. [2020-10-13 13:29:34,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-13 13:29:34,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:29:34,427 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:29:34,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 13:29:34,427 INFO L427 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:29:34,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:29:34,427 INFO L82 PathProgramCache]: Analyzing trace with hash -1892221476, now seen corresponding path program 1 times [2020-10-13 13:29:34,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:29:34,427 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [215735854] [2020-10-13 13:29:34,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:29:34,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:34,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:34,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:34,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:34,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:36,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:39,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:39,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-13 13:29:39,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:29:39,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-13 13:29:39,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:39,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:29:39,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 111 [2020-10-13 13:29:39,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 13:29:39,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:39,631 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:29:39,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:29:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:39,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:39,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:39,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:29:39,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:39,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:29:39,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:39,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:39,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:39,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:39,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:39,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:29:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:39,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:39,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:39,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:29:39,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:39,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:29:39,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:39,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:39,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:39,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:39,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:39,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:29:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:39,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:39,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:39,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:29:39,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:39,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:29:39,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:39,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:39,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:39,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:39,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:39,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:29:39,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:39,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:39,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:39,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:39,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:39,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:29:39,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:39,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:39,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:39,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:39,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:39,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:29:39,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:39,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:39,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:39,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:39,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:39,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:29:39,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:39,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:39,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:39,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:39,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:39,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:29:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:39,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:39,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:39,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:39,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:39,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:29:39,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:39,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:39,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:39,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:39,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:39,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:29:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:39,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:39,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:39,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:39,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:39,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:29:39,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:39,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:39,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:39,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:39,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:39,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:29:39,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:39,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:39,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:39,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:39,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:39,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:29:39,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:39,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:39,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:39,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:29:39,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:39,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:29:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:39,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:39,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:39,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:39,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:39,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:29:39,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:39,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:39,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:39,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:29:39,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:39,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:29:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:39,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:39,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:39,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:29:39,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:39,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:29:39,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:39,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:39,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:39,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:29:39,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:39,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-13 13:29:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:39,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:39,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:39,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:29:39,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:39,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:29:39,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:39,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:39,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:39,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:29:39,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:39,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-13 13:29:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:39,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:39,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:39,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:39,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:39,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:29:39,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:39,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:39,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:39,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:29:39,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:39,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-13 13:29:39,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:39,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:39,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:39,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:29:39,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:39,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:29:39,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:39,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:39,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:39,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:29:39,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:39,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 13:29:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:39,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:39,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:39,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:39,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:39,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:29:39,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:39,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:39,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:39,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:29:39,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:39,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-13 13:29:39,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:39,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:39,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:39,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:39,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:39,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:29:39,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:39,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:29:39,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:29:39,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:29:39,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:39,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-13 13:29:39,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:39,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:39,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:39,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:39,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:39,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:29:39,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:39,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:29:39,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:29:39,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:29:39,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:39,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-13 13:29:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:39,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:39,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:39,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:29:39,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:39,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:29:39,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:39,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:39,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:29:39,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:39,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:39,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-13 13:29:39,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:39,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:39,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:39,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:29:39,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:29:39,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:29:39,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:39,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:29:39,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:29:39,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:29:39,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:29:39,951 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-10-13 13:29:39,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [215735854] [2020-10-13 13:29:39,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:29:39,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 13:29:39,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989733024] [2020-10-13 13:29:39,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 13:29:39,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:29:39,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 13:29:39,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-13 13:29:39,953 INFO L87 Difference]: Start difference. First operand 39731 states and 54587 transitions. Second operand 12 states. [2020-10-13 13:29:40,233 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-13 13:29:41,235 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:29:47,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:29:47,595 INFO L93 Difference]: Finished difference Result 117547 states and 162713 transitions. [2020-10-13 13:29:47,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 13:29:47,595 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 175 [2020-10-13 13:29:47,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:29:47,763 INFO L225 Difference]: With dead ends: 117547 [2020-10-13 13:29:47,763 INFO L226 Difference]: Without dead ends: 78041 [2020-10-13 13:29:47,815 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=205, Invalid=551, Unknown=0, NotChecked=0, Total=756 [2020-10-13 13:29:47,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78041 states. [2020-10-13 13:29:54,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78041 to 75911. [2020-10-13 13:29:54,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75911 states. [2020-10-13 13:29:54,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75911 states to 75911 states and 103767 transitions. [2020-10-13 13:29:54,883 INFO L78 Accepts]: Start accepts. Automaton has 75911 states and 103767 transitions. Word has length 175 [2020-10-13 13:29:54,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:29:54,884 INFO L479 AbstractCegarLoop]: Abstraction has 75911 states and 103767 transitions. [2020-10-13 13:29:54,884 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 13:29:54,884 INFO L276 IsEmpty]: Start isEmpty. Operand 75911 states and 103767 transitions. [2020-10-13 13:29:54,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-13 13:29:54,899 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:29:54,899 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:29:54,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 13:29:54,900 INFO L427 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:29:54,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:29:54,900 INFO L82 PathProgramCache]: Analyzing trace with hash 487134226, now seen corresponding path program 1 times [2020-10-13 13:29:54,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:29:54,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720552992] [2020-10-13 13:29:54,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:29:54,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:54,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:55,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:55,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:55,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:58,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:58,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:58,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:59,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:29:59,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-13 13:29:59,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:29:59,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 13:29:59,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:29:59,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 13:29:59,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 13:29:59,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-13 13:29:59,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:00,130 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:30:00,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:30:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:00,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:00,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:00,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:30:00,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:00,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:30:00,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:00,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:30:00,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:30:00,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:30:00,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:00,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:30:00,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:00,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:00,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:00,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:30:00,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:00,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:30:00,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:00,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:30:00,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:30:00,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 13:30:00,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:00,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:30:00,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:00,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:00,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:00,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:30:00,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:00,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:30:00,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:00,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:30:00,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:30:00,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:30:00,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:00,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:30:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:00,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:00,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:00,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:30:00,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:00,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:30:00,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:00,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:30:00,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:30:00,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:30:00,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:00,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:30:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:00,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:00,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:00,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:30:00,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:00,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:30:00,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:00,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:30:00,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:30:00,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:30:00,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:00,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:30:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:00,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:00,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:00,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:30:00,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:00,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:30:00,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:00,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:30:00,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:30:00,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:30:00,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:00,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:30:00,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:00,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:00,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:00,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:30:00,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:00,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:30:00,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:00,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:30:00,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:30:00,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:30:00,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:00,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:30:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:00,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:00,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:00,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:30:00,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:00,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:30:00,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:00,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:30:00,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:30:00,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:30:00,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:00,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:30:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:00,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:00,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:00,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:30:00,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:00,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:30:00,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:00,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:30:00,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:30:00,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:30:00,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:00,501 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 34 [2020-10-13 13:30:00,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:30:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:00,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:00,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:00,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:30:00,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:00,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:30:00,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:00,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:30:00,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:30:00,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:30:00,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:00,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-13 13:30:00,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:00,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:00,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:00,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:30:00,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:00,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:30:00,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:00,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:30:00,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:30:00,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:30:00,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:00,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-13 13:30:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:00,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:00,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:00,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:30:00,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:00,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:30:00,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:00,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:30:00,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:30:00,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:30:00,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:00,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-13 13:30:00,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:00,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:00,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:00,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:30:00,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:00,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:30:00,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:00,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:30:00,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:30:00,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:30:00,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:00,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 13:30:00,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:00,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:00,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:00,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:30:00,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:00,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:30:00,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:00,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:30:00,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:30:00,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:30:00,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:00,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-13 13:30:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:00,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:00,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:00,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:30:00,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:00,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:30:00,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:00,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:30:00,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:30:00,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:30:00,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:00,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-13 13:30:00,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:00,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:00,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:00,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:30:00,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:00,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:30:00,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:00,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:30:00,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:30:00,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:30:00,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:00,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-13 13:30:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:00,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:00,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:00,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:30:00,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:00,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:30:00,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:00,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:30:00,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:30:00,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:30:00,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:00,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-13 13:30:00,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:30:00,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:30:00,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:30:00,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:30:00,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:30:00,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:30:00,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:30:00,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:30:00,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:30:00,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:30:00,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:30:00,694 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-13 13:30:00,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1720552992] [2020-10-13 13:30:00,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:30:00,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-13 13:30:00,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855808690] [2020-10-13 13:30:00,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 13:30:00,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:30:00,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 13:30:00,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-10-13 13:30:00,696 INFO L87 Difference]: Start difference. First operand 75911 states and 103767 transitions. Second operand 18 states. [2020-10-13 13:30:00,923 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 13:30:01,633 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:30:03,041 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 167 [2020-10-13 13:30:03,416 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-13 13:30:10,199 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 169 [2020-10-13 13:30:10,886 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 170