/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_STARTPALS_ActiveStandby.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 13:46:29,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 13:46:29,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 13:46:29,812 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 13:46:29,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 13:46:29,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 13:46:29,814 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 13:46:29,816 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 13:46:29,818 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 13:46:29,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 13:46:29,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 13:46:29,820 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 13:46:29,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 13:46:29,823 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 13:46:29,824 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 13:46:29,825 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 13:46:29,828 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 13:46:29,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 13:46:29,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 13:46:29,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 13:46:29,840 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 13:46:29,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 13:46:29,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 13:46:29,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 13:46:29,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 13:46:29,849 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 13:46:29,849 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 13:46:29,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 13:46:29,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 13:46:29,855 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 13:46:29,855 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 13:46:29,856 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 13:46:29,857 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 13:46:29,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 13:46:29,859 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 13:46:29,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 13:46:29,859 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 13:46:29,860 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 13:46:29,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 13:46:29,861 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 13:46:29,862 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 13:46:29,863 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 13:46:29,918 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 13:46:29,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 13:46:29,921 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 13:46:29,921 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 13:46:29,922 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 13:46:29,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 13:46:29,922 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 13:46:29,922 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 13:46:29,922 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 13:46:29,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 13:46:29,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 13:46:29,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 13:46:29,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 13:46:29,924 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 13:46:29,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 13:46:29,924 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 13:46:29,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 13:46:29,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 13:46:29,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 13:46:29,925 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 13:46:29,925 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 13:46:29,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:46:29,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 13:46:29,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 13:46:29,926 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 13:46:29,926 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 13:46:29,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 13:46:29,927 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 13:46:29,927 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 13:46:29,927 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 13:46:30,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 13:46:30,265 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 13:46:30,270 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 13:46:30,272 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 13:46:30,272 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 13:46:30,272 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.ufo.UNBOUNDED.pals.c [2020-10-13 13:46:30,327 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/67cae6d2b/6e274ade5c464219a8f5f7046b22f06e/FLAG5f4b91fc2 [2020-10-13 13:46:30,865 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 13:46:30,866 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.ufo.UNBOUNDED.pals.c [2020-10-13 13:46:30,878 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/67cae6d2b/6e274ade5c464219a8f5f7046b22f06e/FLAG5f4b91fc2 [2020-10-13 13:46:31,178 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/67cae6d2b/6e274ade5c464219a8f5f7046b22f06e [2020-10-13 13:46:31,188 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 13:46:31,190 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 13:46:31,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 13:46:31,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 13:46:31,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 13:46:31,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:46:31" (1/1) ... [2020-10-13 13:46:31,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e8d2598 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:46:31, skipping insertion in model container [2020-10-13 13:46:31,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:46:31" (1/1) ... [2020-10-13 13:46:31,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 13:46:31,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 13:46:31,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:46:31,678 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 13:46:31,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:46:31,805 INFO L208 MainTranslator]: Completed translation [2020-10-13 13:46:31,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:46:31 WrapperNode [2020-10-13 13:46:31,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 13:46:31,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 13:46:31,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 13:46:31,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 13:46:31,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:46:31" (1/1) ... [2020-10-13 13:46:31,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:46:31" (1/1) ... [2020-10-13 13:46:31,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:46:31" (1/1) ... [2020-10-13 13:46:31,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:46:31" (1/1) ... [2020-10-13 13:46:31,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:46:31" (1/1) ... [2020-10-13 13:46:31,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:46:31" (1/1) ... [2020-10-13 13:46:31,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:46:31" (1/1) ... [2020-10-13 13:46:31,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 13:46:31,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 13:46:31,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 13:46:31,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 13:46:31,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:46:31" (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 13:46:31,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 13:46:31,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 13:46:31,942 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 13:46:31,942 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2020-10-13 13:46:31,942 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2020-10-13 13:46:31,942 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2020-10-13 13:46:31,942 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2020-10-13 13:46:31,943 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2020-10-13 13:46:31,943 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2020-10-13 13:46:31,943 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2020-10-13 13:46:31,944 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2020-10-13 13:46:31,944 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-13 13:46:31,944 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2020-10-13 13:46:31,944 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2020-10-13 13:46:31,944 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2020-10-13 13:46:31,945 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2020-10-13 13:46:31,945 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2020-10-13 13:46:31,945 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-13 13:46:31,946 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 13:46:31,946 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-13 13:46:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 13:46:31,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 13:46:31,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 13:46:31,948 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 13:46:31,949 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 13:46:31,950 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 13:46:31,951 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 13:46:31,951 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 13:46:31,951 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2020-10-13 13:46:31,951 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2020-10-13 13:46:31,951 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2020-10-13 13:46:31,951 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2020-10-13 13:46:31,951 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2020-10-13 13:46:31,952 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2020-10-13 13:46:31,952 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2020-10-13 13:46:31,952 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2020-10-13 13:46:31,952 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 13:46:31,952 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2020-10-13 13:46:31,954 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2020-10-13 13:46:31,955 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2020-10-13 13:46:31,955 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2020-10-13 13:46:31,955 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2020-10-13 13:46:31,955 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 13:46:31,956 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 13:46:31,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 13:46:31,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 13:46:32,699 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 13:46:32,700 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 13:46:32,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:46:32 BoogieIcfgContainer [2020-10-13 13:46:32,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 13:46:32,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 13:46:32,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 13:46:32,711 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 13:46:32,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:46:31" (1/3) ... [2020-10-13 13:46:32,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f470b13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:46:32, skipping insertion in model container [2020-10-13 13:46:32,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:46:31" (2/3) ... [2020-10-13 13:46:32,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f470b13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:46:32, skipping insertion in model container [2020-10-13 13:46:32,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:46:32" (3/3) ... [2020-10-13 13:46:32,715 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.ufo.UNBOUNDED.pals.c [2020-10-13 13:46:32,725 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 13:46:32,732 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 13:46:32,742 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 13:46:32,766 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 13:46:32,766 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 13:46:32,766 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 13:46:32,766 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 13:46:32,766 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 13:46:32,767 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 13:46:32,767 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 13:46:32,767 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 13:46:32,792 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states. [2020-10-13 13:46:32,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-13 13:46:32,803 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:46:32,805 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] [2020-10-13 13:46:32,805 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:46:32,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:46:32,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1549655252, now seen corresponding path program 1 times [2020-10-13 13:46:32,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:46:32,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [984401724] [2020-10-13 13:46:32,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:46:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:33,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:33,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:33,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:33,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:33,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:34,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:34,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:34,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:35,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:35,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 13:46:35,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 13:46:35,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2064 [2020-10-13 13:46:35,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:35,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:35,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-13 13:46:35,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:35,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 13:46:35,333 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:46:35,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:46:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:35,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:35,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:35,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:35,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:35,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:46:35,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:35,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:35,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:35,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:35,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:35,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:46:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:35,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:35,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:35,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:35,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:35,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:35,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:35,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:35,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:35,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:35,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:35,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 13:46:35,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:35,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:35,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:35,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:35,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:35,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:46:35,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:46:35,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:35,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:35,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:35,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:35,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:35,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 13:46:35,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:35,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:35,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:35,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:46:35,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:35,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 13:46:35,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:35,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:35,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:35,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:35,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:35,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:35,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:35,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:35,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:35,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:35,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:35,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:35,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:35,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:35,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:35,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:35,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 13:46:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:35,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:35,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:35,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:35,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:35,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:46:35,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:46:35,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 13:46:35,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:35,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:35,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 13:46:35,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:35,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:35,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:35,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:35,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:35,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:35,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:35,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:46:35,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:35,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:35,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:35,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:35,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:35,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:46:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:35,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:35,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:35,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:35,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:35,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:46:35,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:46:35,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 13:46:35,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:35,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:35,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 13:46:35,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:35,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:35,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:35,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:35,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:35,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:35,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:35,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:35,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:46:35,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:35,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:35,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:35,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:35,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:35,717 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 13:46:35,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [984401724] [2020-10-13 13:46:35,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:46:35,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 13:46:35,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601840084] [2020-10-13 13:46:35,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 13:46:35,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:46:35,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 13:46:35,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-13 13:46:35,755 INFO L87 Difference]: Start difference. First operand 242 states. Second operand 9 states. [2020-10-13 13:46:37,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:46:37,434 INFO L93 Difference]: Finished difference Result 456 states and 705 transitions. [2020-10-13 13:46:37,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 13:46:37,437 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-10-13 13:46:37,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:46:37,461 INFO L225 Difference]: With dead ends: 456 [2020-10-13 13:46:37,461 INFO L226 Difference]: Without dead ends: 237 [2020-10-13 13:46:37,470 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2020-10-13 13:46:37,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-10-13 13:46:37,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2020-10-13 13:46:37,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-10-13 13:46:37,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 342 transitions. [2020-10-13 13:46:37,557 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 342 transitions. Word has length 71 [2020-10-13 13:46:37,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:46:37,557 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 342 transitions. [2020-10-13 13:46:37,557 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 13:46:37,558 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 342 transitions. [2020-10-13 13:46:37,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-13 13:46:37,562 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:46:37,564 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] [2020-10-13 13:46:37,565 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 13:46:37,565 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:46:37,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:46:37,565 INFO L82 PathProgramCache]: Analyzing trace with hash 695502060, now seen corresponding path program 1 times [2020-10-13 13:46:37,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:46:37,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [45629728] [2020-10-13 13:46:37,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:46:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:37,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:37,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:38,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:41,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:41,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 13:46:41,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:46:41,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3960 [2020-10-13 13:46:41,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:41,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:46:41,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-13 13:46:41,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 13:46:41,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:41,797 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:46:41,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:46:41,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:41,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:41,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:41,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:41,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:41,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:46:41,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:41,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:41,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:41,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:41,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-13 13:46:41,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:46:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:41,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:41,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:41,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:41,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:41,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:46:41,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:41,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:41,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:41,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:41,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:41,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 13:46:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:41,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:41,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:41,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:41,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:41,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:41,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:41,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:41,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:41,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:41,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:41,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 13:46:41,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:41,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:41,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:41,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:46:41,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:41,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:46:41,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:41,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:41,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:41,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:41,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:41,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:41,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:41,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:41,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:41,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:41,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:41,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:41,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:41,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:41,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:41,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:41,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:41,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 13:46:41,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:41,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:41,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:41,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:46:41,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:41,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:46:41,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:41,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:41,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:41,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:41,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:41,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:41,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:41,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:41,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:41,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:41,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:41,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:41,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:41,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:41,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:41,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:41,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:42,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:46:42,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:42,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:42,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:42,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:46:42,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:42,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:46:42,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:42,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:42,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:42,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:42,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:42,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:42,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:42,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:42,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:42,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:42,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:42,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:42,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:42,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:42,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:42,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:42,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:42,059 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 13:46:42,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [45629728] [2020-10-13 13:46:42,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:46:42,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:46:42,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493338086] [2020-10-13 13:46:42,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:46:42,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:46:42,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:46:42,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:46:42,063 INFO L87 Difference]: Start difference. First operand 237 states and 342 transitions. Second operand 11 states. [2020-10-13 13:46:43,216 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:46:43,362 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:46:44,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:46:44,800 INFO L93 Difference]: Finished difference Result 454 states and 657 transitions. [2020-10-13 13:46:44,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 13:46:44,800 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 71 [2020-10-13 13:46:44,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:46:44,804 INFO L225 Difference]: With dead ends: 454 [2020-10-13 13:46:44,804 INFO L226 Difference]: Without dead ends: 241 [2020-10-13 13:46:44,807 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2020-10-13 13:46:44,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-10-13 13:46:44,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2020-10-13 13:46:44,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-10-13 13:46:44,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 345 transitions. [2020-10-13 13:46:44,867 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 345 transitions. Word has length 71 [2020-10-13 13:46:44,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:46:44,867 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 345 transitions. [2020-10-13 13:46:44,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:46:44,868 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 345 transitions. [2020-10-13 13:46:44,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-13 13:46:44,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:46:44,879 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:46:44,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 13:46:44,879 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:46:44,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:46:44,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1081227550, now seen corresponding path program 1 times [2020-10-13 13:46:44,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:46:44,880 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [121390291] [2020-10-13 13:46:44,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:46:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:44,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:44,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:45,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:46,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:49,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:49,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 13:46:49,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:46:49,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 13:46:49,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:49,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:46:49,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 13:46:49,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:46:49,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:50,090 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:46:50,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:46:50,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:50,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:50,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:50,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:50,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:50,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:46:50,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:50,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:50,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:50,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:50,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:50,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:46:50,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:50,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:50,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:50,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:50,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:50,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:46:50,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:50,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:46:50,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:50,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 13:46:50,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:50,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 13:46:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:50,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:50,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:50,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:50,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:50,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:46:50,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:50,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:46:50,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:46:50,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:46:50,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:50,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 13:46:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:50,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:50,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:50,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:46:50,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:50,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:46:50,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:50,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:50,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 13:46:50,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:50,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:50,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:50,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:50,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:50,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:50,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:50,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:50,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:50,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:50,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:50,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:50,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:50,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 13:46:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:50,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:50,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:50,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:46:50,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:50,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:46:50,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:50,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:50,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 13:46:50,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:50,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:50,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:50,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:50,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:50,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:50,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:50,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:50,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:50,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:50,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:50,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:50,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:46:50,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:46:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:50,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:50,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:50,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:46:50,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:50,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:46:50,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:50,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:50,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 13:46:50,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:50,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:50,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:50,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:50,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:50,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:50,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:50,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:50,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:50,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:50,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:50,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:50,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:50,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:50,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-13 13:46:50,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:50,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:50,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:50,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 13:46:50,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:50,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:46:50,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:50,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-13 13:46:50,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:50,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:50,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:50,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:50,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:50,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:50,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:50,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:50,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:50,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:50,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:50,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:50,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:50,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:50,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:46:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:50,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:50,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:50,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:50,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:50,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:50,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:50,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:50,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:50,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:50,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:50,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-13 13:46:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:50,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:50,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:50,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:50,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:50,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:50,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:50,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:50,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:46:50,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:50,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:50,513 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 13:46:50,514 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [121390291] [2020-10-13 13:46:50,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:46:50,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-13 13:46:50,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250593041] [2020-10-13 13:46:50,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 13:46:50,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:46:50,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 13:46:50,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-10-13 13:46:50,518 INFO L87 Difference]: Start difference. First operand 241 states and 345 transitions. Second operand 16 states. [2020-10-13 13:46:50,757 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:46:50,983 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:46:51,136 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:46:53,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:46:53,759 INFO L93 Difference]: Finished difference Result 463 states and 659 transitions. [2020-10-13 13:46:53,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:46:53,765 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 93 [2020-10-13 13:46:53,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:46:53,768 INFO L225 Difference]: With dead ends: 463 [2020-10-13 13:46:53,768 INFO L226 Difference]: Without dead ends: 241 [2020-10-13 13:46:53,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=169, Invalid=481, Unknown=0, NotChecked=0, Total=650 [2020-10-13 13:46:53,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-10-13 13:46:53,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2020-10-13 13:46:53,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-10-13 13:46:53,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 333 transitions. [2020-10-13 13:46:53,803 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 333 transitions. Word has length 93 [2020-10-13 13:46:53,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:46:53,804 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 333 transitions. [2020-10-13 13:46:53,804 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 13:46:53,804 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 333 transitions. [2020-10-13 13:46:53,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-13 13:46:53,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:46:53,806 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:46:53,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 13:46:53,806 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:46:53,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:46:53,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1250466386, now seen corresponding path program 1 times [2020-10-13 13:46:53,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:46:53,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [286418221] [2020-10-13 13:46:53,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:46:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:53,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:53,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:54,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:55,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:58,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:58,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-13 13:46:58,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:46:58,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-13 13:46:58,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:58,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:46:58,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-10-13 13:46:58,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:46:58,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:59,078 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:46:59,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:46:59,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:59,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:59,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:59,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:59,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:59,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:46:59,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:59,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:59,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:59,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:59,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:59,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:46:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:59,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:59,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:59,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:46:59,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:59,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:46:59,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:59,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:59,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:59,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:59,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:59,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:46:59,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:59,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:59,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:59,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:59,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:59,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:59,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:59,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:59,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:59,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:59,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:59,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:46:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:59,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:59,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:59,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:46:59,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:59,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:46:59,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:59,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:59,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:59,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:59,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:59,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:59,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:59,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:59,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:59,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:59,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:59,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:59,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:59,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:59,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:59,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:59,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:46:59,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:59,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:59,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:59,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:46:59,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:59,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:46:59,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:59,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:59,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:59,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:59,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:59,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:59,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:59,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:59,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:59,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:59,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:59,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:59,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:59,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:59,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:59,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:59,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:46:59,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:59,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:59,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:59,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:46:59,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:59,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:46:59,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:59,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:59,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:59,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:59,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:59,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:59,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:59,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:59,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:59,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:59,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:59,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:46:59,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:59,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:59,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:59,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:59,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:59,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:46:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:59,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:59,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:59,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 13:46:59,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:59,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:46:59,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:59,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:59,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:59,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:59,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:59,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:46:59,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:59,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:59,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:59,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:59,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:59,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:59,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:59,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:59,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:59,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:59,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:59,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:46:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:59,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:59,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:59,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:46:59,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:59,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:59,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:59,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:59,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:59,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:59,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:59,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:46:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:46:59,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:46:59,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:46:59,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:46:59,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:46:59,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:46:59,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:46:59,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:46:59,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:46:59,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:46:59,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:46:59,401 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-13 13:46:59,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [286418221] [2020-10-13 13:46:59,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:46:59,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:46:59,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401315943] [2020-10-13 13:46:59,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:46:59,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:46:59,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:46:59,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:46:59,405 INFO L87 Difference]: Start difference. First operand 241 states and 333 transitions. Second operand 13 states. [2020-10-13 13:47:00,843 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:47:01,013 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-13 13:47:02,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:47:02,027 INFO L93 Difference]: Finished difference Result 463 states and 649 transitions. [2020-10-13 13:47:02,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 13:47:02,027 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 104 [2020-10-13 13:47:02,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:47:02,030 INFO L225 Difference]: With dead ends: 463 [2020-10-13 13:47:02,030 INFO L226 Difference]: Without dead ends: 246 [2020-10-13 13:47:02,033 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:47:02,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-10-13 13:47:02,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2020-10-13 13:47:02,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-10-13 13:47:02,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 337 transitions. [2020-10-13 13:47:02,059 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 337 transitions. Word has length 104 [2020-10-13 13:47:02,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:47:02,060 INFO L479 AbstractCegarLoop]: Abstraction has 246 states and 337 transitions. [2020-10-13 13:47:02,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:47:02,060 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 337 transitions. [2020-10-13 13:47:02,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-13 13:47:02,062 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:47:02,062 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:47:02,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 13:47:02,062 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:47:02,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:47:02,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1275259018, now seen corresponding path program 1 times [2020-10-13 13:47:02,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:47:02,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1437461248] [2020-10-13 13:47:02,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:47:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:02,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:02,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:02,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:03,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:07,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:07,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-13 13:47:07,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:47:07,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-13 13:47:07,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:07,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:47:07,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-10-13 13:47:07,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:47:07,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:07,282 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:47:07,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:47:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:07,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:07,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:07,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:07,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:07,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:47:07,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:07,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:07,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:07,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:07,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:07,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:47:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:07,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:07,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:07,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:47:07,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:07,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:47:07,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:07,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:07,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:07,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:07,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:07,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:47:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:07,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:07,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:07,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:07,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:07,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:07,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:07,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:07,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:07,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:07,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:07,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:47:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:07,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:07,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:07,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:47:07,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:07,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:47:07,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:07,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:07,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:07,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:07,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:07,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:07,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:07,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:07,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:07,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:07,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:07,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:07,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:07,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:07,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:07,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:07,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:47:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:07,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:07,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:07,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:47:07,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:07,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:47:07,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:07,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:07,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:07,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:07,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:07,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:07,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:07,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:07,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:07,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:07,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:07,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:07,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:07,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:07,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:07,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:07,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:07,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:47:07,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:07,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:07,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:07,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:47:07,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:07,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:47:07,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:07,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:07,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:07,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:07,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:07,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:07,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:07,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:07,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:07,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:07,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:07,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:07,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:07,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:07,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:07,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:07,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:07,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:47:07,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:07,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:07,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:07,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 13:47:07,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:07,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:47:07,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:07,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:07,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:07,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:07,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:07,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:07,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:07,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:07,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:07,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:07,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:07,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:07,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:07,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:07,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:07,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:07,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:07,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:47:07,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:07,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:07,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:07,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:07,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:07,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:07,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:07,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:07,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:07,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:07,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:07,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:47:07,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:07,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:07,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:07,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:07,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:07,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:07,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:07,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:07,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:07,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:07,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:07,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-13 13:47:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:07,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:07,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:07,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:07,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:07,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:07,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:07,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:07,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:07,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:07,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:07,580 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-13 13:47:07,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1437461248] [2020-10-13 13:47:07,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:47:07,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:47:07,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811160848] [2020-10-13 13:47:07,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:47:07,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:47:07,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:47:07,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:47:07,583 INFO L87 Difference]: Start difference. First operand 246 states and 337 transitions. Second operand 13 states. [2020-10-13 13:47:08,969 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:47:09,133 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-13 13:47:10,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:47:10,029 INFO L93 Difference]: Finished difference Result 473 states and 660 transitions. [2020-10-13 13:47:10,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 13:47:10,030 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 112 [2020-10-13 13:47:10,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:47:10,034 INFO L225 Difference]: With dead ends: 473 [2020-10-13 13:47:10,034 INFO L226 Difference]: Without dead ends: 251 [2020-10-13 13:47:10,036 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:47:10,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-10-13 13:47:10,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2020-10-13 13:47:10,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-10-13 13:47:10,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 341 transitions. [2020-10-13 13:47:10,060 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 341 transitions. Word has length 112 [2020-10-13 13:47:10,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:47:10,060 INFO L479 AbstractCegarLoop]: Abstraction has 251 states and 341 transitions. [2020-10-13 13:47:10,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:47:10,061 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 341 transitions. [2020-10-13 13:47:10,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-13 13:47:10,062 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:47:10,062 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:47:10,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 13:47:10,063 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:47:10,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:47:10,063 INFO L82 PathProgramCache]: Analyzing trace with hash -529643372, now seen corresponding path program 1 times [2020-10-13 13:47:10,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:47:10,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [239179564] [2020-10-13 13:47:10,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:47:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:10,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:10,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:10,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:11,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:15,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:15,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 13:47:15,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:47:15,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-13 13:47:15,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:15,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:47:15,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 148 [2020-10-13 13:47:15,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 13:47:15,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:15,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:47:15,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:15,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:15,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:15,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:15,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:15,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:47:15,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:15,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:15,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:15,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:15,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:15,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:47:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:15,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:15,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:15,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:47:15,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:15,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:47:15,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:15,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:15,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:15,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:15,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:15,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:47:15,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:15,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:15,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:15,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:15,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:15,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:15,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:15,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:15,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:15,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:15,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:15,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:47:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:15,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:15,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:15,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:47:15,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:15,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:47:15,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:15,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:15,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:15,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:15,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:15,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:15,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:15,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:15,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:15,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:15,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:15,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:15,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:15,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:15,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:15,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:15,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:47:15,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:15,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:15,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:15,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:47:15,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:15,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:47:15,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:15,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:15,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:15,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:15,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:15,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:15,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:15,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:15,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:15,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:15,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:15,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:15,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:15,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:15,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:15,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:15,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:47:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:15,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:15,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:15,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:47:15,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:15,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:47:15,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:15,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:15,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:15,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:15,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:15,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:15,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:15,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:15,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:15,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:15,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:15,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:15,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:15,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:15,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:15,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:15,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:47:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:15,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:15,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:15,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 13:47:15,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:15,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:47:15,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:15,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:15,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:15,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:15,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:15,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:15,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:15,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:15,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:15,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:15,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:15,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:15,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:15,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:15,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:15,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:15,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:15,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:47:15,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:15,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:15,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:15,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:15,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:15,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:15,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:15,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:15,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:15,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:15,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:15,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:47:15,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:15,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:15,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:15,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:15,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:15,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:15,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:15,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:15,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:15,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:15,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:15,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-13 13:47:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:15,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:15,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:15,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:15,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:15,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:15,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:15,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:15,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:15,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:15,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:15,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-13 13:47:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:15,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:15,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:15,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:15,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:15,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:47:15,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:15,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:15,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:15,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:15,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:15,655 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-13 13:47:15,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [239179564] [2020-10-13 13:47:15,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:47:15,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:47:15,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490625407] [2020-10-13 13:47:15,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:47:15,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:47:15,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:47:15,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:47:15,661 INFO L87 Difference]: Start difference. First operand 251 states and 341 transitions. Second operand 13 states. [2020-10-13 13:47:17,110 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:47:17,245 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-13 13:47:17,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:47:17,978 INFO L93 Difference]: Finished difference Result 482 states and 664 transitions. [2020-10-13 13:47:17,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 13:47:17,978 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 120 [2020-10-13 13:47:17,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:47:17,982 INFO L225 Difference]: With dead ends: 482 [2020-10-13 13:47:17,982 INFO L226 Difference]: Without dead ends: 255 [2020-10-13 13:47:17,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:47:17,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-10-13 13:47:18,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2020-10-13 13:47:18,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-10-13 13:47:18,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 344 transitions. [2020-10-13 13:47:18,007 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 344 transitions. Word has length 120 [2020-10-13 13:47:18,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:47:18,008 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 344 transitions. [2020-10-13 13:47:18,008 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:47:18,008 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 344 transitions. [2020-10-13 13:47:18,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-13 13:47:18,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:47:18,010 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:47:18,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 13:47:18,010 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:47:18,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:47:18,010 INFO L82 PathProgramCache]: Analyzing trace with hash -2063478286, now seen corresponding path program 1 times [2020-10-13 13:47:18,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:47:18,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1520140381] [2020-10-13 13:47:18,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:47:18,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:18,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:18,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:18,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:18,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:22,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:22,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 13:47:23,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 13:47:23,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-13 13:47:23,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:47:23,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 148 [2020-10-13 13:47:23,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:47:23,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:23,224 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:47:23,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:47:23,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:23,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:47:23,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:23,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:23,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:23,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:23,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:47:23,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:47:23,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:47:23,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:23,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:23,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:23,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:23,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:47:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:23,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:47:23,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:23,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:23,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:23,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:23,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:47:23,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:47:23,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:47:23,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:23,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:23,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:23,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:23,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:23,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:23,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:23,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:23,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:23,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:23,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:23,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:47:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:47:23,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:47:23,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:23,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:23,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:23,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:23,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:23,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:23,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:23,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:23,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:23,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:23,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:47:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:47:23,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:47:23,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:23,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:23,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:23,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:23,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:23,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:23,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:23,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:23,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:23,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:23,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:23,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:47:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 13:47:23,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:47:23,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:23,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:23,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:23,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:23,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:23,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:23,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:47:23,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:23,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:23,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:23,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:23,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:47:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:23,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:23,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:23,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:23,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:23,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:23,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:47:23,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:23,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:23,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:23,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:23,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:23,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:23,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-13 13:47:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:23,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:23,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:23,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:23,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:23,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:23,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-13 13:47:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:23,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:23,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:23,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:23,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:23,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:23,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:23,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:23,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:23,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:23,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:23,661 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-13 13:47:23,662 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1520140381] [2020-10-13 13:47:23,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:47:23,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:47:23,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822925287] [2020-10-13 13:47:23,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:47:23,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:47:23,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:47:23,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:47:23,664 INFO L87 Difference]: Start difference. First operand 255 states and 344 transitions. Second operand 13 states. [2020-10-13 13:47:25,154 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:47:25,311 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-13 13:47:26,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:47:26,157 INFO L93 Difference]: Finished difference Result 491 states and 674 transitions. [2020-10-13 13:47:26,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 13:47:26,158 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 120 [2020-10-13 13:47:26,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:47:26,160 INFO L225 Difference]: With dead ends: 491 [2020-10-13 13:47:26,160 INFO L226 Difference]: Without dead ends: 260 [2020-10-13 13:47:26,161 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:47:26,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-10-13 13:47:26,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2020-10-13 13:47:26,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-10-13 13:47:26,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 348 transitions. [2020-10-13 13:47:26,187 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 348 transitions. Word has length 120 [2020-10-13 13:47:26,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:47:26,187 INFO L479 AbstractCegarLoop]: Abstraction has 260 states and 348 transitions. [2020-10-13 13:47:26,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:47:26,188 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 348 transitions. [2020-10-13 13:47:26,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-13 13:47:26,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:47:26,189 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:47:26,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 13:47:26,190 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:47:26,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:47:26,190 INFO L82 PathProgramCache]: Analyzing trace with hash -272932172, now seen corresponding path program 1 times [2020-10-13 13:47:26,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:47:26,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [590535966] [2020-10-13 13:47:26,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:47:26,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:26,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:26,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:26,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:26,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:30,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:30,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:30,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:31,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:31,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-13 13:47:31,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:47:31,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-13 13:47:31,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:31,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:47:31,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-13 13:47:31,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:47:31,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:31,471 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:47:31,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:47:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:31,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:31,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:31,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:31,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:31,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:47:31,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:31,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:31,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:31,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:31,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:31,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:47:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:31,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:31,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:31,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:47:31,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:31,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:47:31,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:31,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:31,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:31,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:31,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:31,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:47:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:31,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:31,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:31,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:31,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:31,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:31,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:31,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:31,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:31,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:31,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:31,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:47:31,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:31,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:31,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:31,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:47:31,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:31,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:47:31,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:31,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:31,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:31,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:31,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:31,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:31,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:31,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:31,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:31,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:31,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:31,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:31,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:31,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:31,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:31,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:31,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:31,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:47:31,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:31,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:31,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:31,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:47:31,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:31,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:47:31,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:31,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:31,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:31,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:31,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:31,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:31,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:31,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:31,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:31,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:31,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:31,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:31,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:31,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:31,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:31,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:31,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:31,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:47:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:31,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:31,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:31,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:47:31,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:31,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:47:31,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:31,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:31,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:31,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:31,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:31,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:31,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:31,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:31,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:31,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:31,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:31,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:31,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:31,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:31,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:31,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:31,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:47:31,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:31,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:31,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:31,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 13:47:31,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:31,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:31,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:31,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:31,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:31,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:31,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:31,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:31,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:31,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:31,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:31,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:31,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:31,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:31,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:31,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:31,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:31,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:31,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:31,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:47:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:31,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:31,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:31,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:31,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:31,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:31,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:31,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:31,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:31,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:31,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:31,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:47:31,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:31,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:31,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:31,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:31,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:31,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:31,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:31,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:31,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:31,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:31,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:31,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-13 13:47:31,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:31,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:31,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:31,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:31,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:31,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:31,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:31,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:31,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:31,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:31,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:31,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-13 13:47:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:31,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:31,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:31,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:31,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:31,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:31,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:31,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:31,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:31,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:31,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:31,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 13:47:31,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:31,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:31,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:31,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:31,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:31,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:31,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:31,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:31,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:31,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:31,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:31,839 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-13 13:47:31,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [590535966] [2020-10-13 13:47:31,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:47:31,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:47:31,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163020926] [2020-10-13 13:47:31,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:47:31,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:47:31,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:47:31,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:47:31,841 INFO L87 Difference]: Start difference. First operand 260 states and 348 transitions. Second operand 13 states. [2020-10-13 13:47:33,541 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:47:33,699 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:47:34,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:47:34,265 INFO L93 Difference]: Finished difference Result 502 states and 681 transitions. [2020-10-13 13:47:34,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 13:47:34,267 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 128 [2020-10-13 13:47:34,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:47:34,269 INFO L225 Difference]: With dead ends: 502 [2020-10-13 13:47:34,269 INFO L226 Difference]: Without dead ends: 266 [2020-10-13 13:47:34,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:47:34,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-13 13:47:34,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-13 13:47:34,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-13 13:47:34,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 353 transitions. [2020-10-13 13:47:34,304 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 353 transitions. Word has length 128 [2020-10-13 13:47:34,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:47:34,304 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 353 transitions. [2020-10-13 13:47:34,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:47:34,305 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 353 transitions. [2020-10-13 13:47:34,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-13 13:47:34,306 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:47:34,307 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:47:34,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 13:47:34,307 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:47:34,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:47:34,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1274229619, now seen corresponding path program 1 times [2020-10-13 13:47:34,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:47:34,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [433955339] [2020-10-13 13:47:34,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:47:34,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:34,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:34,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:34,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:34,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:35,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:39,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:39,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-13 13:47:39,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:47:39,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 13:47:39,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:39,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:47:39,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-13 13:47:39,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:47:39,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:39,476 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:47:39,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:47:39,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:39,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:39,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:39,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:39,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:39,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:47:39,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:39,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:39,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:39,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:39,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:39,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:47:39,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:39,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:39,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:39,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:47:39,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:39,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:47:39,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:39,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:39,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:39,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:39,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:39,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:47:39,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:39,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:39,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:39,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:39,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:39,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:39,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:39,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:39,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:39,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:39,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:39,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:47:39,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:39,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:39,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:39,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:47:39,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:39,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 13:47:39,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:39,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:47:39,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:47:39,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 13:47:39,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:39,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:39,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:39,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:39,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:39,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:39,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:47:39,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:39,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:39,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:39,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:47:39,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:39,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:47:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:39,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:39,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:39,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:47:39,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:39,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:47:39,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:39,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:39,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 13:47:39,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:39,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:39,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:39,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:39,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:39,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:39,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:39,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:39,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:39,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:39,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:39,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:39,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:39,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:47:39,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:39,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:39,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:39,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:47:39,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:39,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:47:39,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 13:47:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:39,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:39,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:39,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:39,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:39,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:39,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:39,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:39,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:39,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:39,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:39,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:39,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:39,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:47:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:39,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:39,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:39,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 13:47:39,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:39,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:47:39,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:39,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:39,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-13 13:47:39,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:39,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:39,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:39,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:39,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:39,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:39,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:39,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:39,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:47:39,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:39,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:39,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:39,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:39,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:39,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:47:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:39,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:39,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:39,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:39,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:39,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:39,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:39,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:39,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:39,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:39,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:39,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:47:39,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:39,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:39,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:39,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 13:47:39,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:39,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:47:39,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:39,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:39,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-13 13:47:39,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:39,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:39,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:47:39,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:39,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:39,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:39,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:39,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:39,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:47:39,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:39,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:39,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:39,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:39,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:39,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 13:47:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:39,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:39,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:39,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:39,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:39,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:39,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:39,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:39,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:39,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:39,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:39,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 13:47:39,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:39,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:39,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:39,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:39,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:39,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:39,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:39,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:39,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:39,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:39,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:39,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:47:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:39,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:39,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:39,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:39,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:39,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:39,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:39,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:39,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:39,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:39,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:39,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 13:47:39,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:39,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:39,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:39,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:39,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:39,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:39,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:39,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:39,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:39,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:39,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:39,908 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-13 13:47:39,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [433955339] [2020-10-13 13:47:39,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:47:39,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-13 13:47:39,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977314596] [2020-10-13 13:47:39,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-13 13:47:39,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:47:39,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-13 13:47:39,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2020-10-13 13:47:39,910 INFO L87 Difference]: Start difference. First operand 266 states and 353 transitions. Second operand 15 states. [2020-10-13 13:47:40,176 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-13 13:47:42,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:47:42,389 INFO L93 Difference]: Finished difference Result 519 states and 692 transitions. [2020-10-13 13:47:42,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:47:42,390 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 133 [2020-10-13 13:47:42,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:47:42,394 INFO L225 Difference]: With dead ends: 519 [2020-10-13 13:47:42,394 INFO L226 Difference]: Without dead ends: 277 [2020-10-13 13:47:42,396 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2020-10-13 13:47:42,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-10-13 13:47:42,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 276. [2020-10-13 13:47:42,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 13:47:42,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 361 transitions. [2020-10-13 13:47:42,441 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 361 transitions. Word has length 133 [2020-10-13 13:47:42,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:47:42,442 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 361 transitions. [2020-10-13 13:47:42,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-13 13:47:42,442 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 361 transitions. [2020-10-13 13:47:42,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-13 13:47:42,444 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:47:42,444 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:47:42,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 13:47:42,445 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:47:42,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:47:42,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1964006475, now seen corresponding path program 1 times [2020-10-13 13:47:42,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:47:42,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [427571135] [2020-10-13 13:47:42,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:47:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:42,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:42,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:42,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:42,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:47,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:47,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-13 13:47:47,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:47:47,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 13:47:47,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:47,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:47,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-10-13 13:47:47,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:47:47,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:47,623 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:47:47,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:47:47,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:47,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:47,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:47,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:47,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:47,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:47:47,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:47,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:47,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:47,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:47,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:47,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:47:47,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:47,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:47,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:47,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:47:47,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:47,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:47,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:47,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:47,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:47,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:47,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:47,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:47:47,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:47,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:47,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:47,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:47,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:47,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:47:47,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:47,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:47,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:47,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:47,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:47,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:47:47,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:47,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:47,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:47,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:47:47,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:47,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:47:47,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:47,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:47,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:47,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:47,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:47,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:47,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:47,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:47,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:47,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:47,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:47,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:47,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:47,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:47,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:47,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:47,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:47:47,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:47,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:47,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:47,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:47:47,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:47,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:47:47,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:47,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:47,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:47,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:47:47,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:47,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:47,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:47,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:47,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:47,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:47,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:47,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:47,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:47,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:47,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:47,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:47,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:47:47,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:47,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:47,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:47,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:47:47,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:47,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:47:47,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:47,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:47,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:47,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 13:47:47,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:47,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:47,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:47,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:47,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:47,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:47,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:47,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:47,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:47,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:47,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:47,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:47,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:47:47,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:47,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:47,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:47,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 13:47:47,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:47,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:47:47,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:47,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:47,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:47,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 13:47:47,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:47,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:47,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:47,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:47,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:47,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:47,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:47,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:47,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:47,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:47,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:47,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:47,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:47,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:47:47,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:47,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:47,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:47,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:47,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:47,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:47,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:47,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:47,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:47,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:47,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:47,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:47:47,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:47,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:47,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:47,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 13:47:47,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:47,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 13:47:47,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:47,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:47,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:47:47,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-13 13:47:47,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:47,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:47:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:47,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:47,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:47,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:47,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:47,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:47:47,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:47,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:47,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:47,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:47:47,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:47,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 13:47:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:47,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:47,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:47,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:47,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:47,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:47:47,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:47,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:47,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:47,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:47:47,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:47,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 13:47:47,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:47,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:47,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:47,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:47,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:47,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:47:47,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:47,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:47,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:47,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:47:47,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:47,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:47:47,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:47,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:47,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:47,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:47,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:47,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:47:47,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:47,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:47,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:48,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:47:48,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:47:48,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 13:47:48,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:48,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:48,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:48,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:48,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:48,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:47:48,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:48,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:48,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:48,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:47:48,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:48,043 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-13 13:47:48,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [427571135] [2020-10-13 13:47:48,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:47:48,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:47:48,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067898828] [2020-10-13 13:47:48,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:47:48,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:47:48,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:47:48,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:47:48,045 INFO L87 Difference]: Start difference. First operand 276 states and 361 transitions. Second operand 13 states. [2020-10-13 13:47:48,199 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:47:49,029 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-13 13:47:52,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:47:52,720 INFO L93 Difference]: Finished difference Result 763 states and 1014 transitions. [2020-10-13 13:47:52,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 13:47:52,721 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 133 [2020-10-13 13:47:52,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:47:52,727 INFO L225 Difference]: With dead ends: 763 [2020-10-13 13:47:52,727 INFO L226 Difference]: Without dead ends: 515 [2020-10-13 13:47:52,729 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870 [2020-10-13 13:47:52,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2020-10-13 13:47:52,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 479. [2020-10-13 13:47:52,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2020-10-13 13:47:52,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 634 transitions. [2020-10-13 13:47:52,791 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 634 transitions. Word has length 133 [2020-10-13 13:47:52,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:47:52,791 INFO L479 AbstractCegarLoop]: Abstraction has 479 states and 634 transitions. [2020-10-13 13:47:52,791 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:47:52,791 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 634 transitions. [2020-10-13 13:47:52,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-13 13:47:52,793 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:47:52,794 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:47:52,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 13:47:52,794 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:47:52,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:47:52,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1648828929, now seen corresponding path program 1 times [2020-10-13 13:47:52,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:47:52,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1549604586] [2020-10-13 13:47:52,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:47:52,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:52,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:52,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:52,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:53,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:57,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:57,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-13 13:47:57,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:47:57,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-13 13:47:57,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:57,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:57,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-13 13:47:57,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:47:57,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:58,004 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:47:58,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:47:58,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:58,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:58,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:58,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:58,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:58,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:47:58,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:58,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:58,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:58,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:58,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:58,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:47:58,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:58,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:58,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:58,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:47:58,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:58,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:47:58,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:58,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:58,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:58,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:58,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:58,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:47:58,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:58,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:58,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:58,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:58,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:58,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:58,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:58,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:58,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:58,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:58,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:58,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:47:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:58,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:58,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:58,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:47:58,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:58,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:47:58,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:58,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:58,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:58,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:58,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:58,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:58,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:58,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:58,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:58,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:58,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:58,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:58,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:58,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:58,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:58,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:58,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:58,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:47:58,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:58,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:58,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:58,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:47:58,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:58,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:47:58,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:58,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:58,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:58,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:58,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:58,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:58,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:58,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:58,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:58,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:58,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:58,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:58,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:58,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:58,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:58,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:58,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:47:58,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:58,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:58,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:58,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:47:58,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:58,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:47:58,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:58,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:58,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:58,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:47:58,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:58,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:58,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:58,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:58,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:58,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:58,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:58,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:58,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:58,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:58,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:58,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:58,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:58,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:47:58,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:58,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:58,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:58,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 13:47:58,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:58,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:47:58,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:58,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:58,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:58,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 13:47:58,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:58,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:47:58,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:58,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:58,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:58,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:58,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:58,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:47:58,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:58,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:58,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:58,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:58,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:58,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:47:58,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:58,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:58,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:58,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:47:58,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:58,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:47:58,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:58,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:47:58,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:58,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:47:58,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:58,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:47:58,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:58,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:58,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:58,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-13 13:47:58,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:58,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:47:58,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:58,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:58,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 13:47:58,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-13 13:47:58,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:58,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:47:58,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:58,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:58,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:58,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:58,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:58,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:58,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:58,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:58,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:58,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:47:58,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:58,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:47:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:58,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:58,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:58,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:58,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:58,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:58,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:58,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:58,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:58,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:47:58,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:58,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 13:47:58,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:58,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:58,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:58,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:58,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:58,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:58,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:58,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:58,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:58,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:47:58,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:58,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 13:47:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:58,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:58,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:58,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:47:58,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:58,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:58,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:58,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:58,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:58,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:47:58,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:58,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 13:47:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:47:58,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:47:58,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:47:58,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:47:58,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:47:58,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:47:58,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:47:58,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:47:58,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:47:58,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:47:58,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:47:58,339 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-13 13:47:58,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1549604586] [2020-10-13 13:47:58,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:47:58,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:47:58,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620762943] [2020-10-13 13:47:58,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:47:58,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:47:58,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:47:58,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:47:58,341 INFO L87 Difference]: Start difference. First operand 479 states and 634 transitions. Second operand 13 states. [2020-10-13 13:47:58,495 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:47:59,658 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-13 13:48:03,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:48:03,379 INFO L93 Difference]: Finished difference Result 1381 states and 1847 transitions. [2020-10-13 13:48:03,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 13:48:03,380 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 134 [2020-10-13 13:48:03,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:48:03,385 INFO L225 Difference]: With dead ends: 1381 [2020-10-13 13:48:03,385 INFO L226 Difference]: Without dead ends: 930 [2020-10-13 13:48:03,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=256, Invalid=736, Unknown=0, NotChecked=0, Total=992 [2020-10-13 13:48:03,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2020-10-13 13:48:03,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 869. [2020-10-13 13:48:03,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 869 states. [2020-10-13 13:48:03,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1156 transitions. [2020-10-13 13:48:03,476 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1156 transitions. Word has length 134 [2020-10-13 13:48:03,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:48:03,476 INFO L479 AbstractCegarLoop]: Abstraction has 869 states and 1156 transitions. [2020-10-13 13:48:03,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:48:03,477 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1156 transitions. [2020-10-13 13:48:03,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-13 13:48:03,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:48:03,481 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:48:03,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 13:48:03,481 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:48:03,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:48:03,482 INFO L82 PathProgramCache]: Analyzing trace with hash -400558913, now seen corresponding path program 1 times [2020-10-13 13:48:03,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:48:03,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2103122969] [2020-10-13 13:48:03,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:48:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:03,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:03,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:03,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:04,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:08,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:08,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-13 13:48:08,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:48:08,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 13:48:08,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:08,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:48:08,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-10-13 13:48:08,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:48:08,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:08,676 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:48:08,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:48:08,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:08,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:08,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:08,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:08,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:08,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:48:08,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:08,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:08,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:08,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:08,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:08,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:48:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:08,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:08,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:08,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:48:08,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:08,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:08,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:08,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:08,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:08,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:08,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:08,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:48:08,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:08,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:08,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:08,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:08,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:08,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:48:08,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:08,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:08,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:08,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:08,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:08,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:48:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:08,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:08,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:08,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:48:08,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:08,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:48:08,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:08,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:08,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:08,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:08,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:08,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:08,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:08,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:08,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:08,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:08,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:08,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:08,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:08,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:08,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:08,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:08,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:08,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:48:08,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:08,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:08,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:08,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:48:08,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:08,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:48:08,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:08,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:08,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:08,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:08,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:08,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:08,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:08,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:08,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:08,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:08,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:08,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:08,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:08,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:08,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:08,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:08,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:08,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:48:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:08,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:08,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:08,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:48:08,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:08,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:48:08,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:08,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:08,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:08,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:08,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:08,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:08,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:08,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:08,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:08,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:08,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:08,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:08,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:08,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:08,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:08,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:08,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:48:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:08,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:08,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:08,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 13:48:08,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:08,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:08,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:08,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:08,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:08,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:08,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:08,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:08,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:08,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:08,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:08,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:08,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:08,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:08,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:08,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:08,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:08,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:08,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:08,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:48:08,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:08,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:08,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:08,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:08,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:08,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:08,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:08,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:08,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:08,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:08,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:08,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:48:08,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:08,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:08,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:08,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-13 13:48:08,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:08,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 13:48:08,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:08,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:48:08,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 13:48:08,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:48:08,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:08,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:48:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:08,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:08,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:08,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:08,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:08,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:48:08,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:08,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:48:08,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:48:08,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:48:08,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:08,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:48:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:09,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:09,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:09,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:09,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:09,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:09,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:09,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:09,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:48:09,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:09,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:09,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 13:48:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:09,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:09,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:09,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:09,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:09,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:09,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:09,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:09,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:48:09,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:09,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:09,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 13:48:09,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:09,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:09,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:09,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:09,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:09,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:09,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:09,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:09,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:48:09,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:09,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:09,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 13:48:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:09,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:09,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:09,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:09,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:09,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:09,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:09,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:09,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:48:09,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:09,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:09,033 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 13:48:09,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2103122969] [2020-10-13 13:48:09,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:48:09,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-13 13:48:09,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824581341] [2020-10-13 13:48:09,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 13:48:09,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:48:09,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 13:48:09,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-13 13:48:09,035 INFO L87 Difference]: Start difference. First operand 869 states and 1156 transitions. Second operand 14 states. [2020-10-13 13:48:09,282 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-13 13:48:09,433 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:48:10,763 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:48:11,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:48:11,766 INFO L93 Difference]: Finished difference Result 1572 states and 2093 transitions. [2020-10-13 13:48:11,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 13:48:11,766 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 134 [2020-10-13 13:48:11,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:48:11,775 INFO L225 Difference]: With dead ends: 1572 [2020-10-13 13:48:11,775 INFO L226 Difference]: Without dead ends: 693 [2020-10-13 13:48:11,780 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=165, Invalid=387, Unknown=0, NotChecked=0, Total=552 [2020-10-13 13:48:11,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2020-10-13 13:48:11,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2020-10-13 13:48:11,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2020-10-13 13:48:11,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 919 transitions. [2020-10-13 13:48:11,872 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 919 transitions. Word has length 134 [2020-10-13 13:48:11,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:48:11,872 INFO L479 AbstractCegarLoop]: Abstraction has 693 states and 919 transitions. [2020-10-13 13:48:11,872 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 13:48:11,872 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 919 transitions. [2020-10-13 13:48:11,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-13 13:48:11,876 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:48:11,876 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:48:11,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 13:48:11,877 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:48:11,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:48:11,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1614070498, now seen corresponding path program 1 times [2020-10-13 13:48:11,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:48:11,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1878085190] [2020-10-13 13:48:11,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:48:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:11,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:11,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:12,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:12,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:12,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:12,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:16,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:16,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-13 13:48:16,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 13:48:16,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-13 13:48:16,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:16,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:48:16,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-13 13:48:16,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-13 13:48:16,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:17,060 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:48:17,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:48:17,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:17,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:17,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:17,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:17,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:17,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:48:17,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:17,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:17,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:17,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:17,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:17,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:48:17,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:17,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:17,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:17,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:48:17,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:17,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:17,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:17,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:17,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:17,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:17,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:17,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:48:17,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:17,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:17,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:17,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:17,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:17,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:48:17,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:17,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:17,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:17,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:17,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:17,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:48:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:17,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:17,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:17,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:48:17,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:17,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:48:17,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:17,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:17,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:17,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:48:17,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:17,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:17,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:17,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:17,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:17,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:17,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:17,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:17,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:17,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:17,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:17,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:17,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:48:17,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:17,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:17,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:17,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:17,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:17,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:48:17,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:48:17,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 13:48:17,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:17,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:48:17,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:17,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 13:48:17,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:17,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:17,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:17,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:17,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:17,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:17,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:17,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:17,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:17,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:17,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:17,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:17,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:48:17,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:17,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:17,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:17,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:48:17,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:17,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:48:17,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:17,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:17,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:17,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 13:48:17,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:17,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:17,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:17,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:17,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:17,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:17,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:17,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:17,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:17,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:17,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:17,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:17,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 13:48:17,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:17,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:17,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:17,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 13:48:17,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:17,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:48:17,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:17,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:48:17,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:48:17,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:48:17,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:17,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:17,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:17,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:17,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:17,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:17,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:17,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:17,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:17,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:17,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:48:17,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:17,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:48:17,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:17,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:17,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:17,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:17,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:17,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:17,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:17,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:17,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:17,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:48:17,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:17,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-13 13:48:17,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:17,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:17,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:17,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 13:48:17,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:17,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:48:17,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:17,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:17,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-13 13:48:17,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:17,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:17,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:48:17,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:17,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:17,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:17,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:17,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:17,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:17,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:17,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:17,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:17,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:17,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:17,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 13:48:17,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:17,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:17,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:17,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:17,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:17,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:17,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:17,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:17,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:17,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:17,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:17,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 13:48:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:17,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:17,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:17,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:17,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:17,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:17,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:17,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:17,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:17,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:17,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:17,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:48:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:17,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:17,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:17,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:17,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:17,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:17,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:17,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:17,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:17,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:17,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:17,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 13:48:17,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:17,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:17,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:17,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:17,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:17,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:48:17,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:17,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:17,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:17,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:17,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:17,501 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-13 13:48:17,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1878085190] [2020-10-13 13:48:17,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:48:17,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-13 13:48:17,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507121812] [2020-10-13 13:48:17,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 13:48:17,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:48:17,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 13:48:17,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2020-10-13 13:48:17,503 INFO L87 Difference]: Start difference. First operand 693 states and 919 transitions. Second operand 18 states. [2020-10-13 13:48:17,679 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-13 13:48:18,097 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 134 [2020-10-13 13:48:18,260 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-10-13 13:48:18,466 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-13 13:48:19,026 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-13 13:48:19,611 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-10-13 13:48:19,788 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2020-10-13 13:48:19,968 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-13 13:48:20,170 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-13 13:48:20,366 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2020-10-13 13:48:20,542 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:48:21,974 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-10-13 13:48:22,205 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-13 13:48:22,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:48:22,910 INFO L93 Difference]: Finished difference Result 1554 states and 2076 transitions. [2020-10-13 13:48:22,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-13 13:48:22,911 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 134 [2020-10-13 13:48:22,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:48:22,920 INFO L225 Difference]: With dead ends: 1554 [2020-10-13 13:48:22,920 INFO L226 Difference]: Without dead ends: 889 [2020-10-13 13:48:22,923 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=435, Invalid=1371, Unknown=0, NotChecked=0, Total=1806 [2020-10-13 13:48:22,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2020-10-13 13:48:23,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 861. [2020-10-13 13:48:23,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2020-10-13 13:48:23,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1143 transitions. [2020-10-13 13:48:23,027 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1143 transitions. Word has length 134 [2020-10-13 13:48:23,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:48:23,028 INFO L479 AbstractCegarLoop]: Abstraction has 861 states and 1143 transitions. [2020-10-13 13:48:23,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 13:48:23,028 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1143 transitions. [2020-10-13 13:48:23,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-13 13:48:23,031 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:48:23,031 INFO L422 BasicCegarLoop]: trace histogram [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, 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 13:48:23,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 13:48:23,031 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:48:23,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:48:23,032 INFO L82 PathProgramCache]: Analyzing trace with hash -546343151, now seen corresponding path program 1 times [2020-10-13 13:48:23,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:48:23,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1245185423] [2020-10-13 13:48:23,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:48:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:23,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:23,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:23,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:23,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:23,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:23,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:23,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:28,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:28,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-13 13:48:28,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:48:28,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-13 13:48:28,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:28,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:48:28,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-13 13:48:28,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:48:28,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:28,209 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:48:28,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:48:28,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:28,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:28,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:28,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:28,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:28,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:48:28,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:28,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:28,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:28,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:28,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:28,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:48:28,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:28,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:28,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:28,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:48:28,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:28,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:28,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:28,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:28,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:28,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:28,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:28,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:48:28,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:28,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:28,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:28,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:28,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:28,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:48:28,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:28,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:28,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:28,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:28,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:28,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:48:28,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:28,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:28,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:28,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:48:28,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:28,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:48:28,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:28,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:28,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:28,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:48:28,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:28,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:28,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:28,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:28,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:28,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:28,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:28,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:28,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:28,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:28,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:28,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:28,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:48:28,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:28,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:28,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:28,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:28,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:28,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:48:28,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:48:28,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 13:48:28,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:28,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:48:28,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:28,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 13:48:28,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:28,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:28,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:28,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:28,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:28,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:28,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:28,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:28,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:28,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:28,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:28,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:28,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:48:28,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:28,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:28,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:28,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:48:28,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:28,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:48:28,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:28,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:28,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:28,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 13:48:28,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:28,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:28,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:28,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:28,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:28,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:28,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:28,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:28,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:28,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:28,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:28,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:28,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:28,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 13:48:28,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:28,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:28,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:28,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 13:48:28,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:28,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:48:28,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:28,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:48:28,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:48:28,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 13:48:28,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:48:28,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:28,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:28,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:28,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:28,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:28,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:28,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:28,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:28,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:28,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:48:28,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:28,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 13:48:28,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:28,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:28,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:28,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:28,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:28,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:48:28,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:28,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:28,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:28,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:48:28,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:28,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-13 13:48:28,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:28,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:28,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:28,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 13:48:28,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:28,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:48:28,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:28,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:28,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-13 13:48:28,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:28,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:48:28,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:48:28,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:28,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:28,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:28,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:28,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:28,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:28,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:28,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:28,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:28,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:28,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:48:28,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 13:48:28,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:28,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:28,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:28,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:28,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:28,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:28,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:28,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:28,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:28,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:28,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:28,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 13:48:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:28,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:28,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:28,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:28,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:28,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:28,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:28,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:28,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:28,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:28,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:48:28,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:48:28,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:28,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:28,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:28,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:28,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:28,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:28,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:28,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:28,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:28,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:28,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:48:28,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 13:48:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:28,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:28,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:28,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:28,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:28,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:28,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:28,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:28,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:28,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:28,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:48:28,749 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-13 13:48:28,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1245185423] [2020-10-13 13:48:28,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:48:28,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-13 13:48:28,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407026576] [2020-10-13 13:48:28,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 13:48:28,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:48:28,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 13:48:28,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-10-13 13:48:28,751 INFO L87 Difference]: Start difference. First operand 861 states and 1143 transitions. Second operand 18 states. [2020-10-13 13:48:28,931 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-13 13:48:29,387 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 134 [2020-10-13 13:48:29,555 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-10-13 13:48:29,786 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-13 13:48:30,081 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-13 13:48:30,481 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-13 13:48:31,171 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-13 13:48:31,384 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-13 13:48:31,621 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-13 13:48:31,814 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:48:33,363 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-13 13:48:33,564 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-13 13:48:33,804 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-13 13:48:34,004 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-13 13:48:34,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:48:34,724 INFO L93 Difference]: Finished difference Result 1604 states and 2141 transitions. [2020-10-13 13:48:34,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-13 13:48:34,725 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 135 [2020-10-13 13:48:34,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:48:34,730 INFO L225 Difference]: With dead ends: 1604 [2020-10-13 13:48:34,731 INFO L226 Difference]: Without dead ends: 916 [2020-10-13 13:48:34,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=424, Invalid=1382, Unknown=0, NotChecked=0, Total=1806 [2020-10-13 13:48:34,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2020-10-13 13:48:34,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 859. [2020-10-13 13:48:34,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 859 states. [2020-10-13 13:48:34,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1130 transitions. [2020-10-13 13:48:34,829 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1130 transitions. Word has length 135 [2020-10-13 13:48:34,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:48:34,830 INFO L479 AbstractCegarLoop]: Abstraction has 859 states and 1130 transitions. [2020-10-13 13:48:34,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 13:48:34,830 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1130 transitions. [2020-10-13 13:48:34,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-13 13:48:34,833 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:48:34,833 INFO L422 BasicCegarLoop]: trace histogram [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, 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 13:48:34,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 13:48:34,834 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:48:34,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:48:34,834 INFO L82 PathProgramCache]: Analyzing trace with hash -928450196, now seen corresponding path program 1 times [2020-10-13 13:48:34,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:48:34,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [667526505] [2020-10-13 13:48:34,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:48:34,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:34,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:34,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:35,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:39,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:39,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-13 13:48:39,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:48:39,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 13:48:39,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:39,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:48:39,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 13:48:39,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-13 13:48:39,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,017 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:48:40,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:48:40,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:40,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:48:40,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:40,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 13:48:40,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:48:40,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:48:40,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:48:40,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:40,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 13:48:40,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:48:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:40,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:40,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:40,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:48:40,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:48:40,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:48:40,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:48:40,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:40,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:48:40,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:40,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:40,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:40,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:40,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:48:40,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:48:40,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:48:40,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:40,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 13:48:40,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:40,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:40,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:40,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:40,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:40,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:48:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:48:40,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:48:40,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:40,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 13:48:40,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:40,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:40,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:40,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:40,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 13:48:40,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 13:48:40,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:48:40,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:48:40,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:48:40,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 13:48:40,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:40,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:40,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:40,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:48:40,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 13:48:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:40,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:40,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:40,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:48:40,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-13 13:48:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 13:48:40,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:48:40,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:40,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-13 13:48:40,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:40,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:48:40,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:40,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:40,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:40,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:40,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 13:48:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:40,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:40,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:40,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:40,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 13:48:40,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:40,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:40,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:40,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:40,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:48:40,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:40,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:40,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:40,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:40,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 13:48:40,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:40,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:40,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:40,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:40,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:40,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:40,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:40,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:40,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:40,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:40,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:40,388 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-13 13:48:40,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [667526505] [2020-10-13 13:48:40,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:48:40,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-13 13:48:40,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957279449] [2020-10-13 13:48:40,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 13:48:40,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:48:40,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 13:48:40,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2020-10-13 13:48:40,391 INFO L87 Difference]: Start difference. First operand 859 states and 1130 transitions. Second operand 16 states. [2020-10-13 13:48:40,551 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:48:40,881 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-13 13:48:43,862 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-13 13:48:44,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:48:44,525 INFO L93 Difference]: Finished difference Result 1554 states and 2066 transitions. [2020-10-13 13:48:44,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-13 13:48:44,526 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 137 [2020-10-13 13:48:44,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:48:44,532 INFO L225 Difference]: With dead ends: 1554 [2020-10-13 13:48:44,533 INFO L226 Difference]: Without dead ends: 877 [2020-10-13 13:48:44,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=338, Invalid=994, Unknown=0, NotChecked=0, Total=1332 [2020-10-13 13:48:44,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2020-10-13 13:48:44,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 859. [2020-10-13 13:48:44,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 859 states. [2020-10-13 13:48:44,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1125 transitions. [2020-10-13 13:48:44,640 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1125 transitions. Word has length 137 [2020-10-13 13:48:44,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:48:44,641 INFO L479 AbstractCegarLoop]: Abstraction has 859 states and 1125 transitions. [2020-10-13 13:48:44,641 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 13:48:44,641 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1125 transitions. [2020-10-13 13:48:44,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-13 13:48:44,644 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:48:44,644 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 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 13:48:44,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 13:48:44,645 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:48:44,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:48:44,645 INFO L82 PathProgramCache]: Analyzing trace with hash 124785838, now seen corresponding path program 1 times [2020-10-13 13:48:44,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:48:44,645 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [519173430] [2020-10-13 13:48:44,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:48:44,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:44,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:44,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:44,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:45,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:49,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:49,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 13:48:49,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:48:49,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 13:48:49,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:49,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:48:49,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-13 13:48:49,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 13:48:49,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:49,816 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:48:49,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:48:49,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:49,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:49,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:49,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:49,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:49,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:48:49,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:49,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:49,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:49,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:49,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:49,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:48:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:49,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:49,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:49,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:48:49,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:49,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:49,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:49,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:49,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:49,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:49,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:49,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:48:49,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:49,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:49,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:49,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:49,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:49,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:48:49,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:49,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:49,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:49,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:49,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:49,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:48:49,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:49,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:49,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:49,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:48:49,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:49,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:48:49,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:49,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:49,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:49,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:48:49,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:49,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:49,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:49,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:49,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:49,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:49,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:49,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:49,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:49,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:49,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:49,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:49,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:48:49,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:49,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:49,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:49,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:48:49,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:49,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:48:49,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:49,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:49,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:49,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 13:48:49,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:49,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:49,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:49,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:49,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:49,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:49,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:49,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:49,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:49,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:49,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:49,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:49,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:48:49,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:49,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:49,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:49,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:48:49,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:49,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:48:49,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:49,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:49,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:49,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 13:48:49,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:50,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:50,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:50,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:50,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:50,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:50,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:50,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:50,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:50,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:50,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:50,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:50,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 13:48:50,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:50,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:50,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:50,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:48:50,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:50,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:48:50,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:50,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:48:50,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:48:50,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 13:48:50,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:50,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:50,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:50,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:50,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:50,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:50,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:50,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:50,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:50,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:50,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:50,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:48:50,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:50,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 13:48:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:50,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:50,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:50,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:50,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:50,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:50,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:50,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:50,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:50,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:48:50,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:50,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 13:48:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:50,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:50,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:50,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 13:48:50,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:50,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:48:50,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:50,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:50,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-13 13:48:50,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:50,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:50,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:48:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:50,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:50,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:50,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:50,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:50,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:50,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:50,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:50,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:50,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:50,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:50,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 13:48:50,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:50,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:50,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:50,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:50,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:50,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:50,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:50,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:50,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:50,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:50,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:50,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 13:48:50,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:50,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:50,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:50,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:50,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:50,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:50,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:50,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:50,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:50,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:50,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:50,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:48:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:50,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:50,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:50,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:50,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:50,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:50,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:50,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:50,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:50,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:50,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:50,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 13:48:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:50,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:50,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:50,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:50,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:50,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:48:50,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:50,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:50,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:50,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:50,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:50,192 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-13 13:48:50,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [519173430] [2020-10-13 13:48:50,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:48:50,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-13 13:48:50,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805591496] [2020-10-13 13:48:50,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 13:48:50,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:48:50,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 13:48:50,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2020-10-13 13:48:50,194 INFO L87 Difference]: Start difference. First operand 859 states and 1125 transitions. Second operand 16 states. [2020-10-13 13:48:50,356 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-13 13:48:54,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:48:54,275 INFO L93 Difference]: Finished difference Result 1554 states and 2055 transitions. [2020-10-13 13:48:54,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 13:48:54,275 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 138 [2020-10-13 13:48:54,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:48:54,280 INFO L225 Difference]: With dead ends: 1554 [2020-10-13 13:48:54,281 INFO L226 Difference]: Without dead ends: 877 [2020-10-13 13:48:54,283 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=284, Invalid=906, Unknown=0, NotChecked=0, Total=1190 [2020-10-13 13:48:54,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2020-10-13 13:48:54,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 859. [2020-10-13 13:48:54,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 859 states. [2020-10-13 13:48:54,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1122 transitions. [2020-10-13 13:48:54,376 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1122 transitions. Word has length 138 [2020-10-13 13:48:54,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:48:54,376 INFO L479 AbstractCegarLoop]: Abstraction has 859 states and 1122 transitions. [2020-10-13 13:48:54,377 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 13:48:54,377 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1122 transitions. [2020-10-13 13:48:54,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-13 13:48:54,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:48:54,380 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 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 13:48:54,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 13:48:54,380 INFO L427 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:48:54,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:48:54,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1000804844, now seen corresponding path program 1 times [2020-10-13 13:48:54,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:48:54,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [285007128] [2020-10-13 13:48:54,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:48:54,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:54,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:54,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:57,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:57,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 13:48:57,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:48:57,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3206 [2020-10-13 13:48:57,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:57,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 13:48:57,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 13:48:57,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-13 13:48:57,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:57,760 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:48:57,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:48:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:57,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:57,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:57,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:57,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:57,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:48:57,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:57,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:57,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:57,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:57,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:57,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:48:57,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:57,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:57,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:57,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:48:57,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:57,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:48:57,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:57,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:57,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:57,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:48:57,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:57,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:48:57,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:57,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:57,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:57,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:57,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:57,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:57,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:57,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:57,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:57,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:48:57,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:57,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:48:57,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:57,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:57,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:57,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:48:57,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:57,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 13:48:57,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:57,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:48:57,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:48:57,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 13:48:57,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:57,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:57,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:57,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:57,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:57,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:57,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:57,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:48:57,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:57,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:48:57,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:48:57,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:48:57,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:57,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:48:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:57,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:57,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:57,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:48:57,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:57,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:48:57,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:57,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:57,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:57,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 13:48:57,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:57,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:57,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:57,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:57,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:57,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:57,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:57,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:57,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:57,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:57,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:57,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:57,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:57,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:48:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:57,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:57,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:57,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:48:57,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:57,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:48:57,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:57,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:57,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:57,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 13:48:57,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:58,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:58,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:58,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:58,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:58,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:58,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:58,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:58,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:58,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:58,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:58,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:58,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:58,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 13:48:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:58,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:58,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:58,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:48:58,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:58,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:48:58,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:58,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:58,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:58,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 13:48:58,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:58,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:48:58,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:58,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:58,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:58,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:58,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:58,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:48:58,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:58,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:58,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:58,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:58,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:58,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 13:48:58,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:58,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:58,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:58,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:48:58,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:58,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:58,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:58,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:58,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:58,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:58,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:58,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 13:48:58,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:58,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:58,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:58,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 13:48:58,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:58,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:48:58,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:58,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:48:58,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 13:48:58,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:48:58,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:58,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:48:58,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:58,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:58,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:58,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:58,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:58,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:58,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:58,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:48:58,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:58,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:48:58,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:58,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 13:48:58,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:58,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:58,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:58,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:58,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:58,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:48:58,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:58,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:48:58,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:58,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:48:58,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:58,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 13:48:58,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:58,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:58,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:58,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:58,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:58,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:58,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:58,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:58,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:58,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:48:58,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:58,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:48:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:58,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:58,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:58,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:48:58,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:58,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:48:58,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:58,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:58,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:58,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:48:58,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:58,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 13:48:58,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:48:58,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:48:58,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:48:58,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:48:58,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:48:58,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:48:58,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:48:58,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:48:58,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:48:58,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:48:58,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:48:58,238 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-13 13:48:58,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [285007128] [2020-10-13 13:48:58,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:48:58,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-13 13:48:58,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035047992] [2020-10-13 13:48:58,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 13:48:58,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:48:58,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 13:48:58,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2020-10-13 13:48:58,240 INFO L87 Difference]: Start difference. First operand 859 states and 1122 transitions. Second operand 19 states. [2020-10-13 13:48:58,545 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 133 [2020-10-13 13:48:58,725 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 13:48:59,163 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 13:49:00,724 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:49:01,010 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 134 [2020-10-13 13:49:01,297 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 136 [2020-10-13 13:49:02,920 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 13:49:03,075 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-13 13:49:03,228 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-13 13:49:03,373 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:49:04,399 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-13 13:49:06,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:49:06,065 INFO L93 Difference]: Finished difference Result 2356 states and 3130 transitions. [2020-10-13 13:49:06,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-13 13:49:06,066 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 138 [2020-10-13 13:49:06,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:49:06,075 INFO L225 Difference]: With dead ends: 2356 [2020-10-13 13:49:06,076 INFO L226 Difference]: Without dead ends: 1688 [2020-10-13 13:49:06,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=478, Invalid=1502, Unknown=0, NotChecked=0, Total=1980 [2020-10-13 13:49:06,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1688 states. [2020-10-13 13:49:06,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1688 to 1646. [2020-10-13 13:49:06,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1646 states. [2020-10-13 13:49:06,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2182 transitions. [2020-10-13 13:49:06,305 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2182 transitions. Word has length 138 [2020-10-13 13:49:06,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:49:06,306 INFO L479 AbstractCegarLoop]: Abstraction has 1646 states and 2182 transitions. [2020-10-13 13:49:06,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-13 13:49:06,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2182 transitions. [2020-10-13 13:49:06,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-13 13:49:06,308 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:49:06,309 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:49:06,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 13:49:06,309 INFO L427 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:49:06,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:49:06,309 INFO L82 PathProgramCache]: Analyzing trace with hash 741204332, now seen corresponding path program 1 times [2020-10-13 13:49:06,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:49:06,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1861926884] [2020-10-13 13:49:06,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:49:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:06,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:06,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:06,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-13 13:49:06,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:06,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-13 13:49:06,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:06,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:49:06,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 172 [2020-10-13 13:49:06,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 13:49:06,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:06,715 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:49:06,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:49:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:06,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:06,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:06,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:06,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:06,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:49:06,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:06,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:06,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:06,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:06,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:06,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:49:06,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:06,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:06,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:06,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:49:06,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:06,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:06,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:06,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:06,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:06,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:06,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:06,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:49:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:06,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:06,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:06,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:06,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:06,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:49:06,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:06,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:06,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:06,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:06,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:06,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:49:06,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:06,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:06,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:06,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:49:06,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:06,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:49:06,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:06,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:06,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:06,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:06,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:06,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:06,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:06,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:06,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:06,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:06,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:06,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:06,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:06,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:06,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:06,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:06,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:49:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:06,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:06,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:06,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:49:06,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:06,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:49:06,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:06,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:06,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:06,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:06,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:06,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:06,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:06,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:06,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:06,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:06,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:06,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:06,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:06,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:06,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:06,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:06,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:49:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:06,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:06,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:06,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:49:06,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:06,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:49:06,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:06,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:06,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:06,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:06,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:06,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:06,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:06,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:06,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:06,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:06,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:06,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:06,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:06,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:06,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:06,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:06,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 13:49:06,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:06,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:06,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:06,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:49:06,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:06,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:49:06,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:06,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:06,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:06,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:06,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:06,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:06,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:06,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:06,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:06,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:06,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:49:06,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:06,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:06,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:06,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:06,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:06,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 13:49:06,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:06,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:06,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:06,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:06,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:06,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:06,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:06,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:06,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:06,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:06,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:06,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-13 13:49:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:06,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:06,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:06,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:06,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:06,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:06,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:06,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:06,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:06,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:06,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:06,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-13 13:49:06,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:06,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:06,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:06,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:06,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:06,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:06,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:06,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:06,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:06,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:06,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:06,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 13:49:06,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:06,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:06,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:06,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:06,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:06,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:06,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:06,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:06,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:06,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:06,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:06,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-13 13:49:06,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:06,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:06,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:06,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:06,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:06,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:49:06,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:06,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:06,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:06,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:06,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:06,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-13 13:49:06,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:06,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:06,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:06,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:06,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:06,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:06,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:06,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:06,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:06,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:06,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:06,969 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-13 13:49:06,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1861926884] [2020-10-13 13:49:06,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:49:06,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:49:06,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053232234] [2020-10-13 13:49:06,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:49:06,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:49:06,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:49:06,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:49:06,971 INFO L87 Difference]: Start difference. First operand 1646 states and 2182 transitions. Second operand 13 states. [2020-10-13 13:49:08,571 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:49:08,729 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-13 13:49:09,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:49:09,871 INFO L93 Difference]: Finished difference Result 3046 states and 4084 transitions. [2020-10-13 13:49:09,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 13:49:09,872 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 140 [2020-10-13 13:49:09,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:49:09,884 INFO L225 Difference]: With dead ends: 3046 [2020-10-13 13:49:09,884 INFO L226 Difference]: Without dead ends: 1682 [2020-10-13 13:49:09,890 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:49:09,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2020-10-13 13:49:10,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1682. [2020-10-13 13:49:10,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1682 states. [2020-10-13 13:49:10,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1682 states to 1682 states and 2209 transitions. [2020-10-13 13:49:10,209 INFO L78 Accepts]: Start accepts. Automaton has 1682 states and 2209 transitions. Word has length 140 [2020-10-13 13:49:10,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:49:10,210 INFO L479 AbstractCegarLoop]: Abstraction has 1682 states and 2209 transitions. [2020-10-13 13:49:10,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:49:10,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1682 states and 2209 transitions. [2020-10-13 13:49:10,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-13 13:49:10,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:49:10,216 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 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 13:49:10,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 13:49:10,216 INFO L427 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:49:10,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:49:10,220 INFO L82 PathProgramCache]: Analyzing trace with hash -263464484, now seen corresponding path program 1 times [2020-10-13 13:49:10,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:49:10,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [364342979] [2020-10-13 13:49:10,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:49:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:10,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:10,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:14,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:14,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-13 13:49:14,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:49:14,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4601 [2020-10-13 13:49:14,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:14,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 13:49:14,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 13:49:14,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-13 13:49:14,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:15,027 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:49:15,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:49:15,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:15,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:15,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:15,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:15,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:15,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:49:15,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:15,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:15,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:15,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:15,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:15,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:49:15,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:15,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:15,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:15,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:49:15,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:15,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:49:15,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:15,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:49:15,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:15,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 13:49:15,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:15,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:49:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:15,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:15,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:15,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:15,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:15,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:15,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:15,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:49:15,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:15,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:49:15,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:15,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:49:15,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:15,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:15,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:15,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:49:15,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:15,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:49:15,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:15,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:49:15,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:15,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:49:15,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:15,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:15,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:15,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:15,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:15,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:15,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:15,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:15,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:15,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:15,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:15,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:15,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:15,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:49:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:15,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:15,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:15,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:49:15,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:15,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 13:49:15,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:15,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:49:15,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:49:15,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 13:49:15,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:15,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:15,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:15,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:15,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:15,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:15,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:49:15,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:15,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:49:15,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:49:15,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:49:15,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:15,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:49:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:15,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:15,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:15,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:49:15,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:15,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:49:15,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:15,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:49:15,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:15,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 13:49:15,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:15,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:15,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:15,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:15,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:15,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:15,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:15,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:15,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:15,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:15,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:15,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:15,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 13:49:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:15,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:15,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:15,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:49:15,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:15,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:49:15,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:15,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:49:15,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:15,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 13:49:15,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:15,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:15,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:15,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:15,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:15,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:15,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:15,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:15,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:15,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:15,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:15,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:15,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:15,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 13:49:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:15,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:15,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:15,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:15,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:15,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:15,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:15,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:15,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:15,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:15,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:15,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 13:49:15,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:15,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:15,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:15,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:15,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:49:15,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:49:15,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-13 13:49:15,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:15,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:49:15,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-13 13:49:15,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 13:49:15,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:15,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:49:15,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:15,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:15,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:15,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:15,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:15,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:15,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:15,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:15,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:15,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:15,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:15,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 13:49:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:15,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:15,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:15,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:15,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:15,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:15,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:15,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:15,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:15,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:15,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:15,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 13:49:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:15,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:15,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:15,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:15,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:15,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:15,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:15,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:15,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:15,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:15,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:15,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:49:15,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:15,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:15,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:15,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:15,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:15,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:49:15,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:15,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:49:15,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:15,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:49:15,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:15,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 13:49:15,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:15,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:15,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:15,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:15,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:15,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:49:15,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:15,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:49:15,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:15,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:49:15,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:15,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 13:49:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:15,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:15,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:15,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:15,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:15,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:15,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:15,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:49:15,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:15,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:49:15,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:15,593 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-13 13:49:15,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [364342979] [2020-10-13 13:49:15,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:49:15,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-13 13:49:15,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064108125] [2020-10-13 13:49:15,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 13:49:15,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:49:15,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 13:49:15,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2020-10-13 13:49:15,595 INFO L87 Difference]: Start difference. First operand 1682 states and 2209 transitions. Second operand 19 states. [2020-10-13 13:49:15,820 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 13:49:15,992 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:49:16,980 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:49:18,401 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-13 13:49:20,210 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 13:49:20,376 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 13:49:20,522 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 13:49:20,697 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-13 13:49:20,856 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-13 13:49:21,031 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-13 13:49:21,408 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-13 13:49:23,304 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-13 13:49:24,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:49:24,158 INFO L93 Difference]: Finished difference Result 3822 states and 4959 transitions. [2020-10-13 13:49:24,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-13 13:49:24,159 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 146 [2020-10-13 13:49:24,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:49:24,173 INFO L225 Difference]: With dead ends: 3822 [2020-10-13 13:49:24,173 INFO L226 Difference]: Without dead ends: 2455 [2020-10-13 13:49:24,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=549, Invalid=1901, Unknown=0, NotChecked=0, Total=2450 [2020-10-13 13:49:24,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2455 states. [2020-10-13 13:49:24,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2455 to 1691. [2020-10-13 13:49:24,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1691 states. [2020-10-13 13:49:24,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2160 transitions. [2020-10-13 13:49:24,395 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2160 transitions. Word has length 146 [2020-10-13 13:49:24,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:49:24,396 INFO L479 AbstractCegarLoop]: Abstraction has 1691 states and 2160 transitions. [2020-10-13 13:49:24,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-13 13:49:24,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2160 transitions. [2020-10-13 13:49:24,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-13 13:49:24,399 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:49:24,399 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:49:24,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 13:49:24,399 INFO L427 AbstractCegarLoop]: === Iteration 20 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:49:24,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:49:24,400 INFO L82 PathProgramCache]: Analyzing trace with hash 981502446, now seen corresponding path program 1 times [2020-10-13 13:49:24,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:49:24,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [562911879] [2020-10-13 13:49:24,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:49:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:24,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:24,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:25,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:25,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-13 13:49:25,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:49:25,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 774 [2020-10-13 13:49:25,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:25,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:49:25,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-13 13:49:25,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-13 13:49:25,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:25,359 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:49:25,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:49:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:25,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:25,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:25,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:25,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:25,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:49:25,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:25,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:25,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:25,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:25,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:25,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:49:25,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:25,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:25,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:25,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:49:25,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:25,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:49:25,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:25,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:25,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:25,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:25,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:25,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:49:25,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:25,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:25,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:25,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:25,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:25,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:49:25,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:25,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:25,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:25,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:25,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:25,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:49:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:25,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:25,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:25,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:49:25,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:25,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:49:25,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:25,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:25,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:25,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:25,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:25,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:25,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:25,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:25,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:25,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:25,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:25,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:25,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:25,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:25,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:25,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:25,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:49:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:25,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:25,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:25,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:49:25,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:25,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:49:25,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:25,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:25,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:25,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:25,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:25,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:25,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:25,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:25,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:25,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:25,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:25,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:25,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:25,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:25,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:25,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:25,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:49:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:25,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:25,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:25,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:49:25,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:25,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:49:25,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:25,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:49:25,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:25,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:49:25,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:25,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:25,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:25,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:25,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:25,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:25,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:49:25,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:25,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:49:25,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:25,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:49:25,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:25,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 13:49:25,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:25,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:25,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:25,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:49:25,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:25,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:49:25,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:25,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:49:25,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:25,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 13:49:25,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:25,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:25,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:25,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:25,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:25,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:25,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:25,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:25,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:25,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:25,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:25,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:25,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:25,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 13:49:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:25,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:25,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:25,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:25,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:25,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:25,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:25,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:25,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:25,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:25,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:25,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 13:49:25,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:25,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:25,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:25,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-13 13:49:25,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:25,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 13:49:25,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:25,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:49:25,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-13 13:49:25,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:49:25,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:25,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:49:25,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:25,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:25,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:25,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:25,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:25,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:25,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:25,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:25,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:25,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:25,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:25,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 13:49:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:25,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:25,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:25,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:25,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:25,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:25,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:25,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:25,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:25,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:25,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:25,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 13:49:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:25,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:25,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:25,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:25,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:25,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:25,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:25,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:25,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:25,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:25,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:25,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:49:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:25,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:25,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:25,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:25,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:25,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:49:25,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:25,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:25,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:25,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:25,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:25,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 13:49:25,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:25,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:25,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:25,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:25,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:25,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:25,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:25,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:25,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:25,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:25,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:25,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 13:49:25,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:25,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:25,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:25,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:25,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:25,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:49:25,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:25,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:49:25,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:25,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:49:25,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:25,859 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 13:49:25,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [562911879] [2020-10-13 13:49:25,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:49:25,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-13 13:49:25,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648303693] [2020-10-13 13:49:25,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 13:49:25,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:49:25,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 13:49:25,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-10-13 13:49:25,860 INFO L87 Difference]: Start difference. First operand 1691 states and 2160 transitions. Second operand 18 states. [2020-10-13 13:49:26,077 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-13 13:49:26,272 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-13 13:49:28,206 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-13 13:49:29,811 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-13 13:49:29,983 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-13 13:49:30,176 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-13 13:49:30,350 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-13 13:49:30,518 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-13 13:49:30,685 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-13 13:49:34,137 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-13 13:49:36,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:49:36,378 INFO L93 Difference]: Finished difference Result 3255 states and 4295 transitions. [2020-10-13 13:49:36,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-13 13:49:36,379 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 147 [2020-10-13 13:49:36,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:49:36,389 INFO L225 Difference]: With dead ends: 3255 [2020-10-13 13:49:36,390 INFO L226 Difference]: Without dead ends: 2080 [2020-10-13 13:49:36,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=503, Invalid=1849, Unknown=0, NotChecked=0, Total=2352 [2020-10-13 13:49:36,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2080 states. [2020-10-13 13:49:36,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2080 to 1671. [2020-10-13 13:49:36,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1671 states. [2020-10-13 13:49:36,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 2125 transitions. [2020-10-13 13:49:36,578 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 2125 transitions. Word has length 147 [2020-10-13 13:49:36,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:49:36,579 INFO L479 AbstractCegarLoop]: Abstraction has 1671 states and 2125 transitions. [2020-10-13 13:49:36,579 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 13:49:36,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 2125 transitions. [2020-10-13 13:49:36,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-13 13:49:36,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:49:36,582 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:49:36,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 13:49:36,582 INFO L427 AbstractCegarLoop]: === Iteration 21 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:49:36,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:49:36,582 INFO L82 PathProgramCache]: Analyzing trace with hash -261787196, now seen corresponding path program 1 times [2020-10-13 13:49:36,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:49:36,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1856427774] [2020-10-13 13:49:36,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:49:36,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:36,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:36,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:37,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:37,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-13 13:49:37,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:49:37,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 401 [2020-10-13 13:49:37,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:37,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:49:37,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-13 13:49:37,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-13 13:49:37,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:37,163 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:49:37,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:49:37,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:37,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:37,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:37,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:37,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:37,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:49:37,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:37,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:37,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:37,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:37,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:37,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:49:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:37,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:37,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:37,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:49:37,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:37,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:37,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:37,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:37,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:37,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:37,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:37,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:49:37,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:37,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:37,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:37,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:37,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:37,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:49:37,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:37,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:37,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:37,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:37,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:37,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:49:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:37,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:37,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:37,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:49:37,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:37,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:49:37,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:37,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:37,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:37,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:37,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:37,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:37,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:37,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:37,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:37,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:37,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:37,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:37,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:37,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:37,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:37,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:37,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:37,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:49:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:37,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:37,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:37,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:49:37,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:37,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:49:37,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:37,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:49:37,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:37,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:49:37,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:37,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:37,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:37,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:37,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:37,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:37,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:37,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:37,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:49:37,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:37,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:49:37,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:37,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:49:37,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:37,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:37,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:37,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:49:37,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:37,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:49:37,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:37,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:49:37,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:37,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 13:49:37,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:37,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:37,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:37,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:37,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:37,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:37,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:37,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:37,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:37,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:37,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:37,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:37,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 13:49:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:37,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:37,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:37,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:49:37,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:37,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:49:37,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:37,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:49:37,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:37,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 13:49:37,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:37,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:37,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:37,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:37,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:37,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:37,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:37,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:49:37,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:37,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:37,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:37,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:37,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:37,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 13:49:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:37,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:37,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:37,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:37,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:37,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:37,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:37,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:37,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:37,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:37,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:37,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 13:49:37,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:37,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:37,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:37,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-13 13:49:37,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:37,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 13:49:37,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:37,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:49:37,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:49:37,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 13:49:37,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:37,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:49:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:37,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:37,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:37,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:37,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:37,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:49:37,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:37,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:49:37,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:37,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:49:37,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:37,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 13:49:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:37,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:37,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:37,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:37,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:37,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:49:37,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:37,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:49:37,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:37,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:49:37,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:37,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 13:49:37,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:37,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:37,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:37,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:37,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:37,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:49:37,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:37,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:49:37,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:37,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:49:37,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:37,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 13:49:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:37,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:37,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:37,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:37,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:37,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:49:37,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:37,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:49:37,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:37,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:49:37,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:37,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 13:49:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:37,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:37,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:37,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:37,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:37,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:49:37,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:37,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:49:37,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:37,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:49:37,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:37,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 13:49:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:37,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:37,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:37,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:37,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:37,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:37,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:37,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:49:37,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:37,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:49:37,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:37,669 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 13:49:37,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1856427774] [2020-10-13 13:49:37,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:49:37,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-13 13:49:37,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303304301] [2020-10-13 13:49:37,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 13:49:37,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:49:37,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 13:49:37,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2020-10-13 13:49:37,670 INFO L87 Difference]: Start difference. First operand 1671 states and 2125 transitions. Second operand 18 states. [2020-10-13 13:49:37,842 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-13 13:49:39,051 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-13 13:49:41,159 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:49:41,320 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 13:49:41,513 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 13:49:41,827 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 137 [2020-10-13 13:49:45,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:49:45,386 INFO L93 Difference]: Finished difference Result 2967 states and 3824 transitions. [2020-10-13 13:49:45,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-13 13:49:45,386 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 148 [2020-10-13 13:49:45,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:49:45,395 INFO L225 Difference]: With dead ends: 2967 [2020-10-13 13:49:45,395 INFO L226 Difference]: Without dead ends: 1796 [2020-10-13 13:49:45,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=381, Invalid=1179, Unknown=0, NotChecked=0, Total=1560 [2020-10-13 13:49:45,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1796 states. [2020-10-13 13:49:45,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1796 to 1632. [2020-10-13 13:49:45,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1632 states. [2020-10-13 13:49:45,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1632 states to 1632 states and 2067 transitions. [2020-10-13 13:49:45,605 INFO L78 Accepts]: Start accepts. Automaton has 1632 states and 2067 transitions. Word has length 148 [2020-10-13 13:49:45,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:49:45,606 INFO L479 AbstractCegarLoop]: Abstraction has 1632 states and 2067 transitions. [2020-10-13 13:49:45,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 13:49:45,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1632 states and 2067 transitions. [2020-10-13 13:49:45,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-13 13:49:45,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:49:45,608 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:49:45,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 13:49:45,608 INFO L427 AbstractCegarLoop]: === Iteration 22 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:49:45,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:49:45,609 INFO L82 PathProgramCache]: Analyzing trace with hash -545918397, now seen corresponding path program 1 times [2020-10-13 13:49:45,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:49:45,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [98066226] [2020-10-13 13:49:45,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:49:45,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:45,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:45,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:45,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-13 13:49:45,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:45,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-13 13:49:45,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:45,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:49:45,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-13 13:49:45,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-13 13:49:45,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:45,969 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:49:45,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:49:45,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:45,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:45,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:45,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:45,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:45,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:49:45,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:45,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:45,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:45,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:45,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:45,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:49:45,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:45,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:45,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:45,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:49:45,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:45,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:49:45,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:45,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:45,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:45,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:45,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:45,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:49:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:45,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:45,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:45,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:45,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:45,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:49:45,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:45,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:45,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:45,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:45,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:46,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:49:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:46,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:46,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:46,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:49:46,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:46,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:49:46,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:46,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:46,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:46,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:46,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:46,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:46,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:46,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:46,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:46,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:46,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:46,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:46,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:46,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:46,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:46,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:46,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:49:46,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:46,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:46,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:46,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:49:46,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:46,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:49:46,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:46,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:49:46,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:46,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 13:49:46,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:46,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:46,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:46,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:46,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:46,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:46,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:46,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:46,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:46,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:46,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:46,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:46,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:49:46,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:46,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:46,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:46,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:49:46,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:46,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:49:46,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:46,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:49:46,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:46,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 13:49:46,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:46,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:46,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:46,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:46,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:46,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:46,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:46,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:46,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:46,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:46,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:46,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:46,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:46,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:49:46,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:46,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:46,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:46,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:49:46,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:46,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:49:46,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:46,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:49:46,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:46,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 13:49:46,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:46,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:46,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:46,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:46,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:46,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:46,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:46,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:46,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:46,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:46,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:46,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:46,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 13:49:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:46,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:46,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:46,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:46,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:46,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:46,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:46,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:46,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:46,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:46,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:46,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-13 13:49:46,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:46,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:46,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:46,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-13 13:49:46,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:46,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:49:46,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:46,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:49:46,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-13 13:49:46,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:49:46,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:46,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:49:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:46,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:46,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:46,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:46,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:46,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:46,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:46,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:46,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:46,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:46,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:46,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 13:49:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:46,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:46,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:46,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:46,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:46,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:46,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:46,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:46,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:46,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:46,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:46,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 13:49:46,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:46,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:46,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:46,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:46,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:46,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:46,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:46,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:46,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:46,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:46,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:46,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:49:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:46,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:46,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:46,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:46,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:46,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:49:46,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:46,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:46,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:46,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:46,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:46,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 13:49:46,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:46,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:46,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:46,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:46,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:46,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:46,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:46,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:46,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:46,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:46,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:46,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 13:49:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:46,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:46,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:46,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:46,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:46,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:49:46,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:46,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:46,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:46,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:46,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:46,318 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 13:49:46,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [98066226] [2020-10-13 13:49:46,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:49:46,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-13 13:49:46,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584016956] [2020-10-13 13:49:46,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 13:49:46,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:49:46,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 13:49:46,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-13 13:49:46,320 INFO L87 Difference]: Start difference. First operand 1632 states and 2067 transitions. Second operand 14 states. [2020-10-13 13:49:46,469 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:49:47,439 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:49:52,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:49:52,545 INFO L93 Difference]: Finished difference Result 4600 states and 5888 transitions. [2020-10-13 13:49:52,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-13 13:49:52,547 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 148 [2020-10-13 13:49:52,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:49:52,560 INFO L225 Difference]: With dead ends: 4600 [2020-10-13 13:49:52,560 INFO L226 Difference]: Without dead ends: 3455 [2020-10-13 13:49:52,564 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=302, Invalid=958, Unknown=0, NotChecked=0, Total=1260 [2020-10-13 13:49:52,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3455 states. [2020-10-13 13:49:52,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3455 to 3190. [2020-10-13 13:49:52,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3190 states. [2020-10-13 13:49:52,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3190 states to 3190 states and 4053 transitions. [2020-10-13 13:49:52,886 INFO L78 Accepts]: Start accepts. Automaton has 3190 states and 4053 transitions. Word has length 148 [2020-10-13 13:49:52,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:49:52,887 INFO L479 AbstractCegarLoop]: Abstraction has 3190 states and 4053 transitions. [2020-10-13 13:49:52,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 13:49:52,887 INFO L276 IsEmpty]: Start isEmpty. Operand 3190 states and 4053 transitions. [2020-10-13 13:49:52,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-13 13:49:52,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:49:52,890 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 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 13:49:52,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 13:49:52,890 INFO L427 AbstractCegarLoop]: === Iteration 23 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:49:52,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:49:52,891 INFO L82 PathProgramCache]: Analyzing trace with hash -555900159, now seen corresponding path program 1 times [2020-10-13 13:49:52,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:49:52,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [276519318] [2020-10-13 13:49:52,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:49:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:52,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:52,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:53,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:57,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:57,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:57,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:57,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-13 13:49:57,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:49:57,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 13:49:57,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:57,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:49:57,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 183 [2020-10-13 13:49:57,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:49:57,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:58,123 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:49:58,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:49:58,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:58,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:58,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:58,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:58,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:58,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:49:58,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:58,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:58,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:58,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:58,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:58,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:49:58,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:58,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:58,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:58,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:49:58,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:58,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:49:58,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:58,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:58,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:58,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:58,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:58,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:49:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:58,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:58,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:58,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:58,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:58,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:58,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:58,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:58,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:58,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:58,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:58,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:49:58,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:58,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:58,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:58,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:49:58,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:58,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:49:58,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:58,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:58,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:58,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:58,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:58,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:58,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:58,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:58,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:58,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:58,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:58,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:58,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:58,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:58,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:58,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:58,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:58,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:49:58,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:58,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:58,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:58,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:49:58,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:58,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:49:58,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:58,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:58,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:58,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:58,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:58,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:58,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:58,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:58,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:58,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:58,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:58,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:58,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:58,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:58,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:58,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:58,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:49:58,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:58,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:58,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:58,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:49:58,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:58,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:49:58,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:58,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:58,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:58,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:58,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:58,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:58,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:58,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:58,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:58,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:58,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:58,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:58,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:58,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:58,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:58,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:58,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 13:49:58,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:58,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:58,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:58,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:49:58,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:58,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:49:58,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:58,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:58,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:58,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:58,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:58,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:49:58,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:58,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:58,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:58,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:58,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:58,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:58,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:58,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:58,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:58,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:58,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:58,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 13:49:58,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:58,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:58,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:58,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:49:58,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:58,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:58,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:58,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:58,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:58,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:58,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:58,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 13:49:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:58,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:58,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:58,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:59,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:59,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-13 13:49:59,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:49:59,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 670 [2020-10-13 13:49:59,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:59,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 13:49:59,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-13 13:49:59,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:49:59,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:59,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:49:59,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:59,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:59,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:59,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:49:59,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:59,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:59,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:59,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:59,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:59,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:59,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:59,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 13:49:59,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:59,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:59,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:59,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:59,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:59,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:59,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:59,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:59,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:59,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:59,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:59,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 13:49:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:59,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:59,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:59,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:59,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:59,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:59,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:59,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:59,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:59,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:59,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:59,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:49:59,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:59,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:59,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:59,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:59,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:59,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:49:59,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:59,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:49:59,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:59,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:49:59,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:59,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 13:49:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:59,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:59,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:59,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:49:59,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:59,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:49:59,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:59,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:49:59,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:49:59,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:49:59,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:59,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 13:49:59,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:49:59,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:49:59,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:49:59,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:49:59,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:49:59,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:49:59,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:49:59,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:49:59,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:49:59,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:49:59,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:49:59,291 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-13 13:49:59,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [276519318] [2020-10-13 13:49:59,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:49:59,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-13 13:49:59,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636990125] [2020-10-13 13:49:59,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-13 13:49:59,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:49:59,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-13 13:49:59,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:49:59,293 INFO L87 Difference]: Start difference. First operand 3190 states and 4053 transitions. Second operand 21 states. [2020-10-13 13:49:59,492 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:50:01,975 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:50:02,667 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:50:02,834 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:50:03,019 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 13:50:03,326 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 13:50:03,573 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-13 13:50:03,775 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-13 13:50:05,071 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-13 13:50:06,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:50:06,726 INFO L93 Difference]: Finished difference Result 6176 states and 7874 transitions. [2020-10-13 13:50:06,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 13:50:06,727 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 149 [2020-10-13 13:50:06,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:50:06,743 INFO L225 Difference]: With dead ends: 6176 [2020-10-13 13:50:06,743 INFO L226 Difference]: Without dead ends: 3639 [2020-10-13 13:50:06,750 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2020-10-13 13:50:06,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3639 states. [2020-10-13 13:50:07,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3639 to 3288. [2020-10-13 13:50:07,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3288 states. [2020-10-13 13:50:07,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3288 states to 3288 states and 4138 transitions. [2020-10-13 13:50:07,098 INFO L78 Accepts]: Start accepts. Automaton has 3288 states and 4138 transitions. Word has length 149 [2020-10-13 13:50:07,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:50:07,099 INFO L479 AbstractCegarLoop]: Abstraction has 3288 states and 4138 transitions. [2020-10-13 13:50:07,099 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-13 13:50:07,099 INFO L276 IsEmpty]: Start isEmpty. Operand 3288 states and 4138 transitions. [2020-10-13 13:50:07,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-13 13:50:07,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:50:07,102 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:50:07,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 13:50:07,102 INFO L427 AbstractCegarLoop]: === Iteration 24 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:50:07,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:50:07,103 INFO L82 PathProgramCache]: Analyzing trace with hash 712531577, now seen corresponding path program 1 times [2020-10-13 13:50:07,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:50:07,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [114923718] [2020-10-13 13:50:07,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:50:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:50:07,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:50:07,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:50:07,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-13 13:50:07,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:50:07,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-13 13:50:07,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:50:07,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:50:07,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-13 13:50:07,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-13 13:50:07,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:50:07,429 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:50:07,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:50:07,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:50:07,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:50:07,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:50:07,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:50:07,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:50:07,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:50:07,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:50:07,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:50:07,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:50:07,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:50:07,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:50:07,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:50:07,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:50:07,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:50:07,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:50:07,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 13:50:07,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:50:07,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:50:07,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:50:07,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:50:07,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:50:07,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:50:07,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:50:07,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:50:07,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:50:07,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:50:07,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:50:07,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:50:07,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:50:07,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:50:07,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:50:07,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:50:07,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:50:07,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:50:07,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:50:07,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 13:50:07,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:50:07,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:50:07,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:50:07,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:50:07,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:50:07,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:50:07,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:50:07,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:50:07,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:50:07,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:50:07,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:50:07,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:50:07,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:50:07,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:50:07,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:50:07,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:50:07,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:50:07,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:50:07,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:50:07,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:50:07,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:50:07,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:50:07,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:50:07,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:50:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:50:07,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:50:07,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:50:07,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:50:07,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:50:07,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:50:07,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:50:07,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:50:07,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:50:07,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:50:07,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:50:07,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:50:07,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:50:07,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:50:07,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:50:07,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:50:07,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:50:07,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:50:07,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:50:07,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:50:07,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:50:07,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:50:07,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:50:07,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:50:07,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:50:07,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:50:07,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:50:07,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:50:07,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:50:07,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:50:07,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:50:07,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:50:07,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:50:07,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 13:50:07,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:50:07,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:50:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:50:07,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:50:07,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:50:07,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:50:07,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:50:07,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:50:07,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:50:07,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:50:07,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:50:07,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:50:07,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:50:07,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:50:07,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:50:07,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:50:07,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:50:07,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:50:07,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:50:07,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:50:07,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:50:07,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:50:07,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:50:07,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 13:50:07,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:50:07,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 13:50:07,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:50:07,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:50:07,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:50:07,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:50:07,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:50:07,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:50:07,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:50:07,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:50:07,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:50:07,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:50:07,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:50:07,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 13:50:07,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:50:07,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:50:07,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:50:07,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:50:07,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:50:07,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:50:07,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:50:07,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:50:07,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:50:07,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:50:07,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:50:07,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-13 13:50:07,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:50:07,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:50:07,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:50:07,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-13 13:50:07,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:50:07,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:50:07,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:50:07,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:50:07,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 13:50:07,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 13:50:07,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:50:07,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:50:07,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:50:07,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:50:07,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:50:07,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:50:07,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:50:07,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:50:07,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:50:07,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:50:07,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:50:07,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:50:07,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:50:07,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 13:50:07,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:50:07,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:50:07,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:50:07,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:50:07,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:50:07,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:50:07,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:50:07,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:50:07,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:50:07,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:50:07,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:50:07,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 13:50:07,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:50:07,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:50:07,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:50:07,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:50:07,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:50:07,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:50:07,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:50:07,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:50:07,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:50:07,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:50:07,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:50:07,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:50:07,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:50:07,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:50:07,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:50:07,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:50:07,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:50:07,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:50:07,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:50:07,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:50:07,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:50:07,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:50:07,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:50:07,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 13:50:07,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:50:07,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:50:07,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:50:07,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:50:07,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:50:07,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:50:07,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:50:07,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:50:07,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:50:07,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:50:07,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:50:07,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 13:50:07,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:50:07,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:50:07,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:50:07,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:50:07,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:50:07,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:50:07,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:50:07,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:50:07,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:50:07,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:50:07,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:50:07,766 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 13:50:07,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [114923718] [2020-10-13 13:50:07,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:50:07,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-13 13:50:07,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487849641] [2020-10-13 13:50:07,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 13:50:07,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:50:07,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 13:50:07,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-13 13:50:07,768 INFO L87 Difference]: Start difference. First operand 3288 states and 4138 transitions. Second operand 14 states. [2020-10-13 13:50:07,936 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 133