/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:35:54,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:35:54,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:35:54,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:35:54,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:35:54,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:35:54,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:35:54,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:35:54,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:35:54,921 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:35:54,922 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:35:54,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:35:54,923 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:35:54,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:35:54,925 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:35:54,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:35:54,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:35:54,928 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:35:54,929 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:35:54,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:35:54,932 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:35:54,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:35:54,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:35:54,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:35:54,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:35:54,938 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:35:54,938 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:35:54,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:35:54,939 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:35:54,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:35:54,940 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:35:54,941 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:35:54,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:35:54,942 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:35:54,943 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:35:54,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:35:54,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:35:54,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:35:54,944 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:35:54,945 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:35:54,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:35:54,946 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 [2020-10-15 02:35:54,968 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:35:54,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:35:54,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:35:54,970 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:35:54,970 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:35:54,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:35:54,970 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:35:54,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:35:54,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:35:54,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:35:54,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:35:54,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:35:54,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:35:54,972 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:35:54,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:35:54,972 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:35:54,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:35:54,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:35:54,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:35:54,973 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:35:54,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:35:54,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:35:54,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:35:54,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:35:54,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:35:54,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:35:54,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:35:54,974 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:35:54,974 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:35:54,975 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:35:55,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:35:55,303 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:35:55,306 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:35:55,308 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:35:55,308 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:35:55,309 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c [2020-10-15 02:35:55,371 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/316a09d1f/225c4bb8c510458284652558622dae86/FLAG96db0ac39 [2020-10-15 02:35:55,864 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:35:55,865 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c [2020-10-15 02:35:55,881 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/316a09d1f/225c4bb8c510458284652558622dae86/FLAG96db0ac39 [2020-10-15 02:35:56,195 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/316a09d1f/225c4bb8c510458284652558622dae86 [2020-10-15 02:35:56,203 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:35:56,205 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:35:56,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:35:56,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:35:56,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:35:56,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:35:56" (1/1) ... [2020-10-15 02:35:56,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a16f93e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:35:56, skipping insertion in model container [2020-10-15 02:35:56,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:35:56" (1/1) ... [2020-10-15 02:35:56,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:35:56,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:35:56,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:35:56,672 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:35:56,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:35:56,747 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:35:56,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:35:56 WrapperNode [2020-10-15 02:35:56,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:35:56,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:35:56,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:35:56,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:35:56,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:35:56" (1/1) ... [2020-10-15 02:35:56,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:35:56" (1/1) ... [2020-10-15 02:35:56,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:35:56" (1/1) ... [2020-10-15 02:35:56,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:35:56" (1/1) ... [2020-10-15 02:35:56,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:35:56" (1/1) ... [2020-10-15 02:35:56,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:35:56" (1/1) ... [2020-10-15 02:35:56,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:35:56" (1/1) ... [2020-10-15 02:35:56,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:35:56,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:35:56,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:35:56,800 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:35:56,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:35:56" (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 [2020-10-15 02:35:56,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:35:56,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:35:56,873 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 02:35:56,873 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-15 02:35:56,873 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-15 02:35:56,873 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-15 02:35:56,873 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 02:35:56,875 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 02:35:56,875 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:35:56,875 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-15 02:35:56,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:35:56,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:35:56,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:35:56,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 02:35:56,876 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:35:56,877 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:35:56,877 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 02:35:56,877 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:35:56,877 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:35:56,878 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:35:56,878 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:35:56,879 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:35:56,879 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:35:56,879 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:35:56,880 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:35:56,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:35:56,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:35:57,447 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:35:57,447 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 02:35:57,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:35:57 BoogieIcfgContainer [2020-10-15 02:35:57,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:35:57,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:35:57,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:35:57,457 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:35:57,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:35:56" (1/3) ... [2020-10-15 02:35:57,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69e580c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:35:57, skipping insertion in model container [2020-10-15 02:35:57,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:35:56" (2/3) ... [2020-10-15 02:35:57,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69e580c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:35:57, skipping insertion in model container [2020-10-15 02:35:57,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:35:57" (3/3) ... [2020-10-15 02:35:57,461 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c [2020-10-15 02:35:57,472 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:35:57,480 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:35:57,494 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:35:57,516 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:35:57,517 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:35:57,517 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:35:57,517 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:35:57,517 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:35:57,518 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:35:57,518 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:35:57,518 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:35:57,540 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2020-10-15 02:35:57,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-15 02:35:57,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:35:57,554 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] [2020-10-15 02:35:57,554 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:35:57,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:35:57,561 INFO L82 PathProgramCache]: Analyzing trace with hash 115152640, now seen corresponding path program 1 times [2020-10-15 02:35:57,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:35:57,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1195895382] [2020-10-15 02:35:57,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:35:57,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:57,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:58,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:58,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-15 02:35:58,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:58,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-10-15 02:35:58,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:58,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:58,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:58,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-15 02:35:58,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:58,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 02:35:58,326 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-15 02:35:58,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:35:58,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:58,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:58,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:58,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:35:58,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:58,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:35:58,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:58,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:58,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:58,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:58,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:58,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:58,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:35:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:58,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:58,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:58,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:35:58,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:58,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:35:58,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:58,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:58,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:58,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:58,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:58,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:58,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 02:35:58,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:58,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:58,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:58,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:35:58,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:58,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:35:58,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:58,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:58,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:58,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:35:58,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:58,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:58,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-15 02:35:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:58,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:58,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:58,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:35:58,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:58,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:35:58,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:58,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:58,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:58,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:35:58,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:58,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:58,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 02:35:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:58,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:58,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:58,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:58,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:58,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:35:58,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:58,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:58,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:58,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:35:58,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:58,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:58,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:35:58,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:58,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:58,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:58,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:35:58,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:58,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:35:58,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:58,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:58,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:58,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:35:58,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:58,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:58,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 02:35:58,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:58,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:58,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:58,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:35:58,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:58,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:35:58,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:58,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:58,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:58,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:35:58,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:58,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:58,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:35:58,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1195895382] [2020-10-15 02:35:58,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:35:58,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 02:35:58,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772481124] [2020-10-15 02:35:58,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 02:35:58,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:35:58,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 02:35:58,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:35:58,553 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 6 states. [2020-10-15 02:35:59,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:35:59,276 INFO L93 Difference]: Finished difference Result 189 states and 275 transitions. [2020-10-15 02:35:59,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 02:35:59,278 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2020-10-15 02:35:59,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:35:59,291 INFO L225 Difference]: With dead ends: 189 [2020-10-15 02:35:59,291 INFO L226 Difference]: Without dead ends: 110 [2020-10-15 02:35:59,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:35:59,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-15 02:35:59,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 106. [2020-10-15 02:35:59,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-15 02:35:59,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 154 transitions. [2020-10-15 02:35:59,352 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 154 transitions. Word has length 54 [2020-10-15 02:35:59,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:35:59,353 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 154 transitions. [2020-10-15 02:35:59,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 02:35:59,353 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 154 transitions. [2020-10-15 02:35:59,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-15 02:35:59,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:35:59,356 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] [2020-10-15 02:35:59,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:35:59,357 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:35:59,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:35:59,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1730214526, now seen corresponding path program 1 times [2020-10-15 02:35:59,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:35:59,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1209746293] [2020-10-15 02:35:59,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:35:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:59,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:59,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:59,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-15 02:35:59,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:59,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 396 [2020-10-15 02:35:59,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:59,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:59,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:35:59,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 02:35:59,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:35:59,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:59,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:35:59,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:59,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:59,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:59,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:35:59,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:59,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:35:59,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:59,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:59,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:35:59,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:59,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:35:59,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:59,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:35:59,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:59,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:59,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:59,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:35:59,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:59,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:35:59,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:59,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:59,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:35:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:35:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:35:59,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:35:59,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 02:35:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:35:59,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:35:59,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:35:59,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:35:59,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:35:59,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:35:59,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:35:59,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:35:59,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:35:59,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:35:59,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:35:59,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:00,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-15 02:36:00,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:00,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:00,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:00,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:36:00,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:00,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:36:00,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:00,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:00,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:00,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:36:00,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:00,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:00,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 02:36:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:00,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:00,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:00,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:36:00,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:00,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:36:00,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:00,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:00,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:00,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:36:00,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:00,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:00,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:36:00,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:00,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:00,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:00,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:36:00,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:00,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:36:00,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:00,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:00,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:00,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:36:00,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:00,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:00,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 02:36:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:00,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:00,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:00,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:36:00,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:00,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:36:00,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:00,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:00,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:00,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:36:00,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:00,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:00,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:36:00,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1209746293] [2020-10-15 02:36:00,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:36:00,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-15 02:36:00,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830051785] [2020-10-15 02:36:00,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 02:36:00,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:36:00,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 02:36:00,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-15 02:36:00,195 INFO L87 Difference]: Start difference. First operand 106 states and 154 transitions. Second operand 12 states. [2020-10-15 02:36:01,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:36:01,652 INFO L93 Difference]: Finished difference Result 187 states and 267 transitions. [2020-10-15 02:36:01,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 02:36:01,653 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 54 [2020-10-15 02:36:01,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:36:01,656 INFO L225 Difference]: With dead ends: 187 [2020-10-15 02:36:01,656 INFO L226 Difference]: Without dead ends: 110 [2020-10-15 02:36:01,658 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:36:01,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-15 02:36:01,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 106. [2020-10-15 02:36:01,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-15 02:36:01,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 137 transitions. [2020-10-15 02:36:01,697 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 137 transitions. Word has length 54 [2020-10-15 02:36:01,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:36:01,697 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 137 transitions. [2020-10-15 02:36:01,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 02:36:01,697 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 137 transitions. [2020-10-15 02:36:01,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-15 02:36:01,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:36:01,706 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] [2020-10-15 02:36:01,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:36:01,709 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:36:01,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:36:01,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1333801356, now seen corresponding path program 1 times [2020-10-15 02:36:01,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:36:01,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [110214325] [2020-10-15 02:36:01,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:36:01,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:01,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:01,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:02,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:03,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:03,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-15 02:36:03,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:36:03,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1589 [2020-10-15 02:36:03,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:03,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:03,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:36:03,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-15 02:36:03,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-15 02:36:03,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:36:03,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:36:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:03,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:03,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:03,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:36:03,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:03,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:36:03,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:03,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:03,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:03,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:03,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:03,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:03,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:36:03,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:03,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:03,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:03,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 02:36:03,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:03,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-15 02:36:03,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:03,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:03,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:36:03,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:03,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:36:03,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:03,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-15 02:36:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:03,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:03,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:03,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:36:03,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:03,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:36:03,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:03,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:03,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:03,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:03,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:36:03,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:03,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-15 02:36:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:03,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:03,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:03,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:36:03,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:03,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:36:03,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:03,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:03,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:36:03,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:36:03,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:36:03,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:03,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-15 02:36:03,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:03,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:03,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:03,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:36:03,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:03,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:36:03,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:03,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:03,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:36:03,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:36:03,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:36:03,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:03,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:36:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:03,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:03,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:03,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:36:03,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:03,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:36:03,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:03,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:03,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:36:03,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:36:03,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:36:03,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:03,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:36:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:03,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:03,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:03,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:36:03,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:03,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:36:03,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:03,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:03,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:03,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:36:03,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:36:03,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:03,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:36:03,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [110214325] [2020-10-15 02:36:03,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:36:03,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 02:36:03,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126221983] [2020-10-15 02:36:03,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:36:03,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:36:03,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:36:03,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:36:03,843 INFO L87 Difference]: Start difference. First operand 106 states and 137 transitions. Second operand 13 states. [2020-10-15 02:36:07,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:36:07,632 INFO L93 Difference]: Finished difference Result 665 states and 945 transitions. [2020-10-15 02:36:07,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-15 02:36:07,635 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 70 [2020-10-15 02:36:07,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:36:07,651 INFO L225 Difference]: With dead ends: 665 [2020-10-15 02:36:07,652 INFO L226 Difference]: Without dead ends: 594 [2020-10-15 02:36:07,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=596, Invalid=2056, Unknown=0, NotChecked=0, Total=2652 [2020-10-15 02:36:07,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2020-10-15 02:36:07,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 538. [2020-10-15 02:36:07,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-10-15 02:36:07,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 766 transitions. [2020-10-15 02:36:07,742 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 766 transitions. Word has length 70 [2020-10-15 02:36:07,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:36:07,742 INFO L479 AbstractCegarLoop]: Abstraction has 538 states and 766 transitions. [2020-10-15 02:36:07,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:36:07,742 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 766 transitions. [2020-10-15 02:36:07,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-15 02:36:07,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:36:07,747 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] [2020-10-15 02:36:07,747 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:36:07,748 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:36:07,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:36:07,748 INFO L82 PathProgramCache]: Analyzing trace with hash 835679982, now seen corresponding path program 1 times [2020-10-15 02:36:07,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:36:07,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1174616885] [2020-10-15 02:36:07,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:36:07,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:07,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:07,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:07,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:11,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:11,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-15 02:36:11,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:36:11,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4074 [2020-10-15 02:36:11,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:11,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:11,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:36:11,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-15 02:36:11,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-15 02:36:11,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:11,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:36:11,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:11,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:11,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:11,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:36:11,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:11,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:36:11,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:11,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:11,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:11,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:11,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:11,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:11,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:36:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:11,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:11,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:11,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 02:36:11,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:11,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:36:11,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:11,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:11,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:11,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:11,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:36:11,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:11,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-15 02:36:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:12,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:12,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:12,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:36:12,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:12,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:36:12,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:12,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:12,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:12,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:12,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:36:12,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:12,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-15 02:36:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:12,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:12,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:12,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:36:12,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:12,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:36:12,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:12,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:12,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:12,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:12,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:36:12,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:36:12,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-15 02:36:12,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:12,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:12,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:12,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:36:12,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:12,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:36:12,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:12,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:12,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:36:12,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:36:12,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:36:12,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:12,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:36:12,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:12,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:12,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:12,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:36:12,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:12,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:36:12,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:12,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:12,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:12,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:36:12,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:12,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:12,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:36:12,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:12,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:12,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:12,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:36:12,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:12,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:36:12,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:12,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:12,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:12,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:36:12,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:12,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:12,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:36:12,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1174616885] [2020-10-15 02:36:12,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:36:12,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:36:12,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142176010] [2020-10-15 02:36:12,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:36:12,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:36:12,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:36:12,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:36:12,188 INFO L87 Difference]: Start difference. First operand 538 states and 766 transitions. Second operand 9 states. [2020-10-15 02:36:13,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:36:13,495 INFO L93 Difference]: Finished difference Result 1500 states and 2145 transitions. [2020-10-15 02:36:13,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 02:36:13,496 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-10-15 02:36:13,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:36:13,510 INFO L225 Difference]: With dead ends: 1500 [2020-10-15 02:36:13,510 INFO L226 Difference]: Without dead ends: 997 [2020-10-15 02:36:13,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-10-15 02:36:13,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2020-10-15 02:36:13,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 946. [2020-10-15 02:36:13,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 946 states. [2020-10-15 02:36:13,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1343 transitions. [2020-10-15 02:36:13,625 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1343 transitions. Word has length 71 [2020-10-15 02:36:13,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:36:13,626 INFO L479 AbstractCegarLoop]: Abstraction has 946 states and 1343 transitions. [2020-10-15 02:36:13,626 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:36:13,626 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1343 transitions. [2020-10-15 02:36:13,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-15 02:36:13,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:36:13,632 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:36:13,632 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:36:13,633 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:36:13,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:36:13,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1721272713, now seen corresponding path program 1 times [2020-10-15 02:36:13,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:36:13,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [510662139] [2020-10-15 02:36:13,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:36:13,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:13,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:13,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:14,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:14,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-15 02:36:14,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:36:14,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 950 [2020-10-15 02:36:14,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:14,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:14,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:36:14,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-15 02:36:14,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-15 02:36:14,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:14,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:36:14,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:14,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:14,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:14,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:36:14,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:14,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:36:14,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:14,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:14,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:14,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:14,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:14,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:14,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:36:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:14,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:14,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:14,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 02:36:14,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:14,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:36:14,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:14,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:14,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:14,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:14,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 02:36:14,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:14,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-15 02:36:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:14,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:14,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:14,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:36:14,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:14,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:36:14,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:14,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:14,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:14,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:14,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:36:14,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:14,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-15 02:36:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:14,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:14,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:14,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:36:14,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:14,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:36:14,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:14,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:14,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:14,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:14,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:36:14,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:14,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-15 02:36:14,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:14,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:14,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:14,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:36:14,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:14,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:36:14,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:14,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:14,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:14,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:14,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:36:14,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:14,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:36:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:14,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:14,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:14,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:36:14,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:14,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:36:14,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:14,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:14,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:36:14,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:36:14,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:36:14,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:14,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:36:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:14,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:14,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:14,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:36:14,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:14,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:36:14,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:14,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:14,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:14,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:36:14,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:14,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:14,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:36:14,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [510662139] [2020-10-15 02:36:14,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:36:14,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:36:14,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797939989] [2020-10-15 02:36:14,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:36:14,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:36:14,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:36:14,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:36:14,918 INFO L87 Difference]: Start difference. First operand 946 states and 1343 transitions. Second operand 9 states. [2020-10-15 02:36:16,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:36:16,189 INFO L93 Difference]: Finished difference Result 2666 states and 3779 transitions. [2020-10-15 02:36:16,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 02:36:16,190 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 72 [2020-10-15 02:36:16,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:36:16,202 INFO L225 Difference]: With dead ends: 2666 [2020-10-15 02:36:16,202 INFO L226 Difference]: Without dead ends: 1755 [2020-10-15 02:36:16,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-10-15 02:36:16,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1755 states. [2020-10-15 02:36:16,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1755 to 1669. [2020-10-15 02:36:16,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1669 states. [2020-10-15 02:36:16,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1669 states to 1669 states and 2344 transitions. [2020-10-15 02:36:16,331 INFO L78 Accepts]: Start accepts. Automaton has 1669 states and 2344 transitions. Word has length 72 [2020-10-15 02:36:16,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:36:16,333 INFO L479 AbstractCegarLoop]: Abstraction has 1669 states and 2344 transitions. [2020-10-15 02:36:16,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:36:16,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1669 states and 2344 transitions. [2020-10-15 02:36:16,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-15 02:36:16,335 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:36:16,335 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:36:16,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:36:16,335 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:36:16,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:36:16,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1733018986, now seen corresponding path program 1 times [2020-10-15 02:36:16,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:36:16,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [241316793] [2020-10-15 02:36:16,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:36:16,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:16,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:16,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:16,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:16,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-15 02:36:16,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:36:16,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 553 [2020-10-15 02:36:16,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:16,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:16,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:36:16,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-15 02:36:16,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:36:16,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:17,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:36:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:17,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:17,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:17,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:36:17,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:17,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:36:17,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:17,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:17,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:17,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:17,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:17,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:17,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:36:17,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:17,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:17,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:17,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 02:36:17,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:17,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:36:17,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:17,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:17,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:17,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:17,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 02:36:17,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:17,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-15 02:36:17,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:17,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:17,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:17,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:36:17,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:17,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:36:17,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:17,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:17,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:17,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:17,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:36:17,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:17,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-15 02:36:17,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:17,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:17,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:17,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:36:17,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:17,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:36:17,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:17,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:17,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:36:17,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:17,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:36:17,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:17,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-15 02:36:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:17,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:17,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:17,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:36:17,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:17,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:36:17,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:17,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:17,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:36:17,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:17,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:36:17,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:17,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:36:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:17,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:17,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:17,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:36:17,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:17,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:36:17,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:17,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:17,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:17,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:36:17,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:36:17,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:17,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:36:17,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:17,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:17,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:17,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:36:17,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:17,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:36:17,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:17,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:17,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:17,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:36:17,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:17,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:17,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:36:17,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [241316793] [2020-10-15 02:36:17,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:36:17,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-15 02:36:17,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283474339] [2020-10-15 02:36:17,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 02:36:17,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:36:17,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 02:36:17,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-15 02:36:17,289 INFO L87 Difference]: Start difference. First operand 1669 states and 2344 transitions. Second operand 12 states. [2020-10-15 02:36:22,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:36:22,892 INFO L93 Difference]: Finished difference Result 10381 states and 14949 transitions. [2020-10-15 02:36:22,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-15 02:36:22,893 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 73 [2020-10-15 02:36:22,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:36:22,945 INFO L225 Difference]: With dead ends: 10381 [2020-10-15 02:36:22,946 INFO L226 Difference]: Without dead ends: 8747 [2020-10-15 02:36:22,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1055 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=594, Invalid=2828, Unknown=0, NotChecked=0, Total=3422 [2020-10-15 02:36:22,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8747 states. [2020-10-15 02:36:23,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8747 to 8431. [2020-10-15 02:36:23,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8431 states. [2020-10-15 02:36:23,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8431 states to 8431 states and 11250 transitions. [2020-10-15 02:36:23,612 INFO L78 Accepts]: Start accepts. Automaton has 8431 states and 11250 transitions. Word has length 73 [2020-10-15 02:36:23,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:36:23,612 INFO L479 AbstractCegarLoop]: Abstraction has 8431 states and 11250 transitions. [2020-10-15 02:36:23,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 02:36:23,612 INFO L276 IsEmpty]: Start isEmpty. Operand 8431 states and 11250 transitions. [2020-10-15 02:36:23,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-15 02:36:23,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:36:23,614 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:36:23,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:36:23,615 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:36:23,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:36:23,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1412248436, now seen corresponding path program 1 times [2020-10-15 02:36:23,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:36:23,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2006081256] [2020-10-15 02:36:23,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:36:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:23,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:23,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:23,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:23,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:25,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:25,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-15 02:36:25,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:36:25,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2204 [2020-10-15 02:36:25,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:25,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:25,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:36:25,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-15 02:36:25,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-15 02:36:25,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:25,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:36:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:25,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:25,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:25,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:36:25,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:25,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:36:25,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:25,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:25,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:25,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:25,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:25,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:25,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:36:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:25,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:25,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:25,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 02:36:25,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:25,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:36:25,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:25,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:25,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:25,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:25,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:25,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:25,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-15 02:36:25,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:25,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:25,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:25,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:36:25,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:25,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:36:25,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:25,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:25,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:25,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:25,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:25,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:25,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-15 02:36:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:25,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:25,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:25,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:36:25,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:25,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:36:25,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:25,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:36:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:36:25,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:26,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:36:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:26,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:26,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:26,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:36:26,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:26,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:36:26,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:26,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:26,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:26,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:26,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:36:26,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:26,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 02:36:26,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:26,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:26,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:26,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:36:26,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:26,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:36:26,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:26,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:26,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:26,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:26,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:36:26,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:26,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-15 02:36:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:26,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:26,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:26,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:36:26,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:26,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:36:26,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:26,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:26,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:26,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:36:26,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:36:26,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:26,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:36:26,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2006081256] [2020-10-15 02:36:26,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:36:26,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:36:26,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363257917] [2020-10-15 02:36:26,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:36:26,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:36:26,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:36:26,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:36:26,098 INFO L87 Difference]: Start difference. First operand 8431 states and 11250 transitions. Second operand 9 states. [2020-10-15 02:36:28,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:36:28,556 INFO L93 Difference]: Finished difference Result 31194 states and 42636 transitions. [2020-10-15 02:36:28,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 02:36:28,557 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 74 [2020-10-15 02:36:28,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:36:28,824 INFO L225 Difference]: With dead ends: 31194 [2020-10-15 02:36:28,824 INFO L226 Difference]: Without dead ends: 22811 [2020-10-15 02:36:28,864 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=104, Invalid=316, Unknown=0, NotChecked=0, Total=420 [2020-10-15 02:36:28,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22811 states. [2020-10-15 02:36:30,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22811 to 22139. [2020-10-15 02:36:30,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22139 states. [2020-10-15 02:36:30,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22139 states to 22139 states and 29825 transitions. [2020-10-15 02:36:30,280 INFO L78 Accepts]: Start accepts. Automaton has 22139 states and 29825 transitions. Word has length 74 [2020-10-15 02:36:30,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:36:30,280 INFO L479 AbstractCegarLoop]: Abstraction has 22139 states and 29825 transitions. [2020-10-15 02:36:30,280 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:36:30,280 INFO L276 IsEmpty]: Start isEmpty. Operand 22139 states and 29825 transitions. [2020-10-15 02:36:30,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-15 02:36:30,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:36:30,282 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:36:30,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:36:30,283 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:36:30,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:36:30,283 INFO L82 PathProgramCache]: Analyzing trace with hash 568242934, now seen corresponding path program 1 times [2020-10-15 02:36:30,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:36:30,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1757580272] [2020-10-15 02:36:30,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:36:30,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:30,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:30,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:31,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:31,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-15 02:36:31,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:36:31,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 737 [2020-10-15 02:36:31,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:31,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:31,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:36:31,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-15 02:36:31,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-15 02:36:31,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:31,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:36:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:31,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:31,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:31,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:36:31,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:31,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 663 [2020-10-15 02:36:31,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:31,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:31,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:31,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:31,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:31,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:36:31,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:36:31,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:31,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:31,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:31,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 02:36:31,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:31,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:36:31,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:31,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:31,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:31,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:31,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:36:31,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:31,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-15 02:36:31,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:31,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:31,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:31,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:36:31,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:31,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:36:31,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:31,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:31,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:31,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:31,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:36:31,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:31,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-15 02:36:31,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:31,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:31,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:31,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:36:31,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:31,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:36:31,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:31,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:31,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:36:31,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:36:31,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:36:31,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:31,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:36:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:31,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:31,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:31,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:36:31,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:31,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:36:31,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:31,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:31,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:31,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:36:31,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:31,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:31,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 02:36:31,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:31,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:31,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:31,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:36:31,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:31,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:36:31,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:31,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:31,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:31,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:36:31,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:31,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:31,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-15 02:36:31,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:31,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:31,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:31,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:36:31,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:31,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:36:31,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:31,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:31,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:31,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:36:31,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:31,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:31,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:36:31,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1757580272] [2020-10-15 02:36:31,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:36:31,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:36:31,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146944617] [2020-10-15 02:36:31,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:36:31,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:36:31,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:36:31,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:36:31,957 INFO L87 Difference]: Start difference. First operand 22139 states and 29825 transitions. Second operand 9 states. [2020-10-15 02:36:34,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:36:34,677 INFO L93 Difference]: Finished difference Result 55337 states and 74925 transitions. [2020-10-15 02:36:34,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:36:34,678 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 74 [2020-10-15 02:36:34,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:36:34,836 INFO L225 Difference]: With dead ends: 55337 [2020-10-15 02:36:34,836 INFO L226 Difference]: Without dead ends: 33285 [2020-10-15 02:36:34,918 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:36:34,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33285 states. [2020-10-15 02:36:36,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33285 to 32829. [2020-10-15 02:36:36,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32829 states. [2020-10-15 02:36:36,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32829 states to 32829 states and 43304 transitions. [2020-10-15 02:36:36,809 INFO L78 Accepts]: Start accepts. Automaton has 32829 states and 43304 transitions. Word has length 74 [2020-10-15 02:36:36,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:36:36,810 INFO L479 AbstractCegarLoop]: Abstraction has 32829 states and 43304 transitions. [2020-10-15 02:36:36,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:36:36,810 INFO L276 IsEmpty]: Start isEmpty. Operand 32829 states and 43304 transitions. [2020-10-15 02:36:36,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-15 02:36:36,811 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:36:36,811 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:36:36,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:36:36,811 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:36:36,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:36:36,811 INFO L82 PathProgramCache]: Analyzing trace with hash -45090842, now seen corresponding path program 1 times [2020-10-15 02:36:36,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:36:36,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [51019826] [2020-10-15 02:36:36,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:36:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:36,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:37,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:37,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-15 02:36:37,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:37,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-15 02:36:37,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:37,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:37,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:36:37,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-15 02:36:37,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:36:37,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:37,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:36:37,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:37,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:37,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:37,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:36:37,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:37,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:36:37,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:37,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:37,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:37,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:37,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:37,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:37,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:36:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:37,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:37,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:37,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 02:36:37,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:37,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:36:37,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:37,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:37,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:37,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:37,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:37,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:37,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-15 02:36:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:37,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:37,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:37,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:36:37,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:37,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:36:37,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:37,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:37,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:37,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:37,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:37,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:37,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-15 02:36:37,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:37,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:37,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:37,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:36:37,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:37,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:36:37,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:37,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:37,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:37,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:37,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:37,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:37,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:36:37,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:37,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:37,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:37,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:36:37,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:37,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:36:37,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:37,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:37,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:37,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:37,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:37,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:37,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 02:36:37,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:37,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:37,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:37,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:36:37,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:37,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:36:37,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:37,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:37,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:37,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:37,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:37,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:37,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-15 02:36:37,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:37,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:37,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:37,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:36:37,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:37,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-10-15 02:36:37,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:37,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:37,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:36:37,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:37,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:36:37,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:36:37,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:36:37,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [51019826] [2020-10-15 02:36:37,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:36:37,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-15 02:36:37,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293439039] [2020-10-15 02:36:37,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 02:36:37,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:36:37,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 02:36:37,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-15 02:36:37,610 INFO L87 Difference]: Start difference. First operand 32829 states and 43304 transitions. Second operand 12 states. [2020-10-15 02:36:40,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:36:40,016 INFO L93 Difference]: Finished difference Result 36523 states and 49517 transitions. [2020-10-15 02:36:40,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 02:36:40,017 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 74 [2020-10-15 02:36:40,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:36:40,156 INFO L225 Difference]: With dead ends: 36523 [2020-10-15 02:36:40,156 INFO L226 Difference]: Without dead ends: 36521 [2020-10-15 02:36:40,174 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:36:40,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36521 states. [2020-10-15 02:36:42,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36521 to 34053. [2020-10-15 02:36:42,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34053 states. [2020-10-15 02:36:42,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34053 states to 34053 states and 44440 transitions. [2020-10-15 02:36:42,177 INFO L78 Accepts]: Start accepts. Automaton has 34053 states and 44440 transitions. Word has length 74 [2020-10-15 02:36:42,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:36:42,177 INFO L479 AbstractCegarLoop]: Abstraction has 34053 states and 44440 transitions. [2020-10-15 02:36:42,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 02:36:42,177 INFO L276 IsEmpty]: Start isEmpty. Operand 34053 states and 44440 transitions. [2020-10-15 02:36:42,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-15 02:36:42,193 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:36:42,193 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:36:42,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:36:42,194 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:36:42,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:36:42,194 INFO L82 PathProgramCache]: Analyzing trace with hash 451363232, now seen corresponding path program 1 times [2020-10-15 02:36:42,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:36:42,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [473179043] [2020-10-15 02:36:42,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:36:42,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:43,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:43,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:44,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:44,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-15 02:36:44,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:36:44,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2236 [2020-10-15 02:36:44,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:44,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:44,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:36:44,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 02:36:44,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-15 02:36:44,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:44,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:36:44,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:44,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:44,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:44,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:36:44,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:44,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:36:44,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:44,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:44,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:44,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:44,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:36:44,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:44,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:44,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:44,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 02:36:44,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:44,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:36:44,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:44,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:44,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:44,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:44,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-15 02:36:44,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:44,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-15 02:36:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:44,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:44,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:44,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:36:44,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:44,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:36:44,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:44,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:44,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:44,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:44,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:36:44,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:44,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-15 02:36:44,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:44,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:44,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:44,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:36:44,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:44,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:36:44,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:44,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:44,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:36:44,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:36:44,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:36:44,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:44,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:36:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:44,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:44,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:44,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:36:44,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:44,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:36:44,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:44,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:44,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:44,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:44,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:36:44,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:44,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 02:36:44,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:44,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:44,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:44,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:36:44,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:44,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:36:44,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:44,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:44,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:44,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:44,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:36:44,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:44,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-15 02:36:44,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:44,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:44,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:44,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:36:44,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:44,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:36:44,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:44,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:44,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:44,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:44,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:36:44,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:44,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:36:44,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:44,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:44,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:44,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:36:44,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:44,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:36:44,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:44,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:44,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:44,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:44,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:36:44,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:44,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-15 02:36:44,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:44,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:44,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:44,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:36:44,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:44,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:36:44,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:44,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:44,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:36:44,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:36:44,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:36:44,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:44,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-15 02:36:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:44,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:44,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:44,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:36:44,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:44,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:36:44,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:44,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:44,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:44,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:44,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:36:44,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:44,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-15 02:36:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:44,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:44,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:44,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:36:44,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:44,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:36:44,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:44,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:44,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:44,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:44,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:36:44,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:44,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-15 02:36:44,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:44,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:44,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:44,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:36:44,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:44,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:36:44,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:44,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:44,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:44,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:36:44,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:36:44,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:44,837 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-15 02:36:44,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [473179043] [2020-10-15 02:36:44,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:36:44,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-15 02:36:44,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582343994] [2020-10-15 02:36:44,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:36:44,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:36:44,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:36:44,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:36:44,839 INFO L87 Difference]: Start difference. First operand 34053 states and 44440 transitions. Second operand 11 states. [2020-10-15 02:36:49,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:36:49,388 INFO L93 Difference]: Finished difference Result 94027 states and 122758 transitions. [2020-10-15 02:36:49,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-15 02:36:49,388 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 113 [2020-10-15 02:36:49,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:36:49,621 INFO L225 Difference]: With dead ends: 94027 [2020-10-15 02:36:49,622 INFO L226 Difference]: Without dead ends: 60061 [2020-10-15 02:36:49,701 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=185, Invalid=627, Unknown=0, NotChecked=0, Total=812 [2020-10-15 02:36:49,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60061 states. [2020-10-15 02:36:52,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60061 to 57725. [2020-10-15 02:36:52,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57725 states. [2020-10-15 02:36:52,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57725 states to 57725 states and 75304 transitions. [2020-10-15 02:36:52,776 INFO L78 Accepts]: Start accepts. Automaton has 57725 states and 75304 transitions. Word has length 113 [2020-10-15 02:36:52,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:36:52,776 INFO L479 AbstractCegarLoop]: Abstraction has 57725 states and 75304 transitions. [2020-10-15 02:36:52,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:36:52,776 INFO L276 IsEmpty]: Start isEmpty. Operand 57725 states and 75304 transitions. [2020-10-15 02:36:52,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-15 02:36:52,784 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:36:52,784 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:36:52,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 02:36:52,785 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:36:52,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:36:52,785 INFO L82 PathProgramCache]: Analyzing trace with hash 80318565, now seen corresponding path program 1 times [2020-10-15 02:36:52,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:36:52,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1909968448] [2020-10-15 02:36:52,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:36:52,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:52,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:52,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:52,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:52,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:53,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:57,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:57,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-15 02:36:57,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:36:57,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 02:36:57,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:57,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:57,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:36:57,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:36:57,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-15 02:36:57,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:57,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:36:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:57,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:57,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:57,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:36:57,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:57,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:36:57,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:57,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:57,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:57,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:57,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:36:57,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:57,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:36:57,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:57,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:57,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:57,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 02:36:57,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:57,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:36:57,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:57,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:57,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:36:57,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:57,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:36:57,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:58,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-15 02:36:58,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:58,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:58,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:58,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:36:58,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:58,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:36:58,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:58,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:58,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:58,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:58,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:36:58,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:58,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-15 02:36:58,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:58,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:58,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:58,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:36:58,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:58,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:36:58,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:58,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:58,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:36:58,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:36:58,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:36:58,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:36:58,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-15 02:36:58,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:58,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:58,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:58,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:36:58,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:58,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:36:58,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:58,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:58,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:58,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:58,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:36:58,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:58,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 02:36:58,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:58,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:58,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:58,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:36:58,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:58,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:36:58,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:58,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:58,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:58,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:58,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:36:58,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:58,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-15 02:36:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:58,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:58,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:58,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:36:58,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:58,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:36:58,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:58,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:58,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:58,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:58,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:36:58,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:58,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:36:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:58,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:58,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:58,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:36:58,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:58,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:36:58,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:58,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:58,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:58,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:58,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:36:58,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:58,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-15 02:36:58,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:58,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:58,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:58,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:36:58,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:58,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:36:58,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:58,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:58,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:36:58,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:36:58,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:36:58,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:58,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-15 02:36:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:58,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:58,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:58,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:36:58,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:58,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:36:58,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:58,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:58,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:36:58,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:36:58,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:36:58,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:58,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-15 02:36:58,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:58,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:58,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:58,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:36:58,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:58,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:36:58,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:58,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:58,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:58,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:36:58,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:58,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:58,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:36:58,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:36:58,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:36:58,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:36:58,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:36:58,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:36:58,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:36:58,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:36:58,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:36:58,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:36:58,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:36:58,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:36:58,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:36:58,247 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-15 02:36:58,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1909968448] [2020-10-15 02:36:58,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:36:58,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-15 02:36:58,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026441965] [2020-10-15 02:36:58,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 02:36:58,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:36:58,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 02:36:58,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:36:58,249 INFO L87 Difference]: Start difference. First operand 57725 states and 75304 transitions. Second operand 15 states. [2020-10-15 02:36:58,432 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-15 02:36:58,891 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-15 02:36:59,261 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-15 02:36:59,954 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-15 02:37:05,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:37:05,043 INFO L93 Difference]: Finished difference Result 127130 states and 166443 transitions. [2020-10-15 02:37:05,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-15 02:37:05,044 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 113 [2020-10-15 02:37:05,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:37:05,746 INFO L225 Difference]: With dead ends: 127130 [2020-10-15 02:37:05,746 INFO L226 Difference]: Without dead ends: 95488 [2020-10-15 02:37:05,840 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=429, Invalid=1293, Unknown=0, NotChecked=0, Total=1722 [2020-10-15 02:37:05,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95488 states. [2020-10-15 02:37:12,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95488 to 88353. [2020-10-15 02:37:12,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88353 states. [2020-10-15 02:37:12,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88353 states to 88353 states and 115790 transitions. [2020-10-15 02:37:12,255 INFO L78 Accepts]: Start accepts. Automaton has 88353 states and 115790 transitions. Word has length 113 [2020-10-15 02:37:12,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:37:12,256 INFO L479 AbstractCegarLoop]: Abstraction has 88353 states and 115790 transitions. [2020-10-15 02:37:12,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 02:37:12,256 INFO L276 IsEmpty]: Start isEmpty. Operand 88353 states and 115790 transitions. [2020-10-15 02:37:12,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-15 02:37:12,267 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:37:12,267 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:37:12,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 02:37:12,267 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:37:12,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:37:12,268 INFO L82 PathProgramCache]: Analyzing trace with hash 4797807, now seen corresponding path program 1 times [2020-10-15 02:37:12,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:37:12,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2079844163] [2020-10-15 02:37:12,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:37:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:12,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:12,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:12,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:12,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:12,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:17,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:17,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-15 02:37:17,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:37:17,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 02:37:17,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:17,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:17,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:37:17,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 02:37:17,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-15 02:37:17,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:37:17,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:37:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:17,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:17,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:17,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:37:17,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:17,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:37:17,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:17,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:17,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:37:17,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:37:17,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:37:17,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:37:17,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:37:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:17,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:17,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:17,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 02:37:17,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:17,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:37:17,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:17,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:17,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:37:17,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:37:17,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:37:17,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:37:17,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-15 02:37:17,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:17,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:17,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:17,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:37:17,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:17,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:37:17,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:17,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:17,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:37:17,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:37:17,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:37:17,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:37:17,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-15 02:37:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:17,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:17,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:17,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:37:17,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:17,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:37:17,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:17,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:17,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:37:17,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:37:17,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:37:17,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:37:17,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-15 02:37:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:17,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:17,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:17,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:37:17,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:17,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:37:17,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:17,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:17,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:37:17,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:37:17,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:37:17,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:37:17,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:37:17,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:17,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:17,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:17,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:37:17,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:17,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:37:17,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:17,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:17,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:37:17,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:37:17,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:37:17,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:37:17,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-15 02:37:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:17,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:17,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:17,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:37:17,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:17,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:37:17,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:17,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:17,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:37:17,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:37:17,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:37:17,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:37:17,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:37:17,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:17,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:17,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:17,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:37:17,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:17,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:37:17,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:17,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:17,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:37:17,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:37:17,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:37:17,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:37:17,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-15 02:37:17,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:17,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:17,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:17,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:37:17,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:17,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:37:17,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:17,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:17,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:37:17,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:37:17,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:37:17,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:37:17,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-15 02:37:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:17,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:17,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:17,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:37:17,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:17,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:37:17,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:17,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:17,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:37:17,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:37:17,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:37:17,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:37:17,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-15 02:37:17,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:17,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:17,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:17,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:37:17,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:17,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:37:17,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:17,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:17,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:37:17,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:37:17,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:37:17,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:37:17,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:37:17,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:37:17,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:37:17,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:37:17,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:37:17,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:37:17,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:37:17,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:37:17,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:37:17,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:37:17,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:37:17,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:37:17,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:37:17,666 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-15 02:37:17,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2079844163] [2020-10-15 02:37:17,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:37:17,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-15 02:37:17,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121856246] [2020-10-15 02:37:17,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:37:17,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:37:17,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:37:17,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:37:17,669 INFO L87 Difference]: Start difference. First operand 88353 states and 115790 transitions. Second operand 13 states. [2020-10-15 02:37:18,252 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-15 02:37:18,706 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-10-15 02:37:37,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:37:37,928 INFO L93 Difference]: Finished difference Result 370238 states and 485829 transitions. [2020-10-15 02:37:37,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2020-10-15 02:37:37,929 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 113 [2020-10-15 02:37:37,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:37:39,101 INFO L225 Difference]: With dead ends: 370238 [2020-10-15 02:37:39,102 INFO L226 Difference]: Without dead ends: 282000 [2020-10-15 02:37:39,254 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1338 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=649, Invalid=3383, Unknown=0, NotChecked=0, Total=4032 [2020-10-15 02:37:39,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282000 states. [2020-10-15 02:38:00,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282000 to 266367. [2020-10-15 02:38:00,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266367 states. [2020-10-15 02:38:01,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266367 states to 266367 states and 347344 transitions. [2020-10-15 02:38:01,384 INFO L78 Accepts]: Start accepts. Automaton has 266367 states and 347344 transitions. Word has length 113 [2020-10-15 02:38:01,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:38:01,384 INFO L479 AbstractCegarLoop]: Abstraction has 266367 states and 347344 transitions. [2020-10-15 02:38:01,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:38:01,384 INFO L276 IsEmpty]: Start isEmpty. Operand 266367 states and 347344 transitions. [2020-10-15 02:38:01,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-15 02:38:01,402 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:38:01,402 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:38:01,402 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 02:38:01,403 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:38:01,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:38:01,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1256119443, now seen corresponding path program 1 times [2020-10-15 02:38:01,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:38:01,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1071371429] [2020-10-15 02:38:01,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:38:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:01,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:01,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:01,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:01,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:02,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:06,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:06,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-15 02:38:06,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:38:06,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 02:38:06,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:06,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:06,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:38:06,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:38:06,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-15 02:38:06,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:38:06,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:38:06,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:06,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:06,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:06,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:38:06,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:06,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:38:06,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:06,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:06,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:38:06,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:06,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:38:06,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:38:06,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:38:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:06,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:06,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:06,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 02:38:06,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:06,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:38:06,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:06,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:06,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:38:06,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:06,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:38:06,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:06,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-15 02:38:06,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:06,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:06,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:06,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:38:06,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:06,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:38:06,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:06,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:06,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:38:06,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:06,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:38:06,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:06,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-15 02:38:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:06,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:06,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:06,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:38:06,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:06,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:38:06,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:06,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:06,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:38:06,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:06,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:38:06,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:06,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-15 02:38:06,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:06,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:06,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:06,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:38:06,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:06,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:38:06,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:06,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:06,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:38:06,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:38:06,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:38:06,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:06,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:38:06,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:06,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:06,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:06,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:38:06,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:06,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:38:06,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:06,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:06,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:38:06,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:06,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:38:06,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:38:06,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-15 02:38:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:06,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:06,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:06,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:06,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:06,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:38:06,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:06,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:06,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:38:06,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:06,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:38:06,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:38:06,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:38:06,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:06,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:06,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:06,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:38:06,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:06,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:38:06,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:06,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:06,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:38:06,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:06,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:38:06,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:38:06,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-15 02:38:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:06,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:06,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:06,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:38:06,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:06,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:38:06,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:06,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:06,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:38:06,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:06,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:38:06,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:06,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-15 02:38:06,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:06,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:06,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:06,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:06,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:06,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:38:06,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:06,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:06,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:38:06,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:06,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:38:06,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:06,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-15 02:38:06,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:06,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:06,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:06,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:38:06,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:06,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:38:06,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:06,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:06,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:38:06,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:38:06,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:38:06,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:06,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:38:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:06,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:06,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:06,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:38:06,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:06,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:38:06,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:06,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:06,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:06,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:38:06,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:06,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:06,951 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-15 02:38:06,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1071371429] [2020-10-15 02:38:06,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:38:06,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-15 02:38:06,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494764662] [2020-10-15 02:38:06,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 02:38:06,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:38:06,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 02:38:06,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:38:06,958 INFO L87 Difference]: Start difference. First operand 266367 states and 347344 transitions. Second operand 15 states. [2020-10-15 02:38:07,142 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-15 02:38:07,605 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-15 02:38:08,148 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-15 02:38:08,577 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-15 02:38:34,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:38:34,759 INFO L93 Difference]: Finished difference Result 502406 states and 656540 transitions. [2020-10-15 02:38:34,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-15 02:38:34,759 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 113 [2020-10-15 02:38:34,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:38:35,985 INFO L225 Difference]: With dead ends: 502406 [2020-10-15 02:38:35,986 INFO L226 Difference]: Without dead ends: 388640 [2020-10-15 02:38:36,649 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=393, Invalid=1167, Unknown=0, NotChecked=0, Total=1560 [2020-10-15 02:38:36,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388640 states. [2020-10-15 02:39:06,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388640 to 350633. [2020-10-15 02:39:06,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350633 states. [2020-10-15 02:39:07,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350633 states to 350633 states and 454236 transitions. [2020-10-15 02:39:07,745 INFO L78 Accepts]: Start accepts. Automaton has 350633 states and 454236 transitions. Word has length 113 [2020-10-15 02:39:07,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:39:07,745 INFO L479 AbstractCegarLoop]: Abstraction has 350633 states and 454236 transitions. [2020-10-15 02:39:07,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 02:39:07,745 INFO L276 IsEmpty]: Start isEmpty. Operand 350633 states and 454236 transitions. [2020-10-15 02:39:07,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-15 02:39:07,761 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:39:07,761 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:39:07,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 02:39:07,762 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:39:07,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:39:07,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1396140319, now seen corresponding path program 1 times [2020-10-15 02:39:07,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:39:07,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1696954618] [2020-10-15 02:39:07,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:39:07,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:07,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:07,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:07,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:07,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:10,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:10,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking...