/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_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:41:37,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:41:37,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:41:37,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:41:37,891 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:41:37,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:41:37,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:41:37,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:41:37,914 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:41:37,914 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:41:37,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:41:37,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:41:37,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:41:37,923 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:41:37,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:41:37,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:41:37,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:41:37,931 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:41:37,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:41:37,939 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:41:37,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:41:37,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:41:37,945 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:41:37,946 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:41:37,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:41:37,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:41:37,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:41:37,954 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:41:37,955 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:41:37,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:41:37,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:41:37,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:41:37,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:41:37,958 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:41:37,959 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:41:37,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:41:37,960 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:41:37,961 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:41:37,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:41:37,962 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:41:37,963 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:41:37,964 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 02:41:38,010 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:41:38,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:41:38,013 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:41:38,013 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:41:38,013 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:41:38,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:41:38,014 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:41:38,014 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:41:38,014 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:41:38,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:41:38,015 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:41:38,016 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:41:38,016 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:41:38,016 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:41:38,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:41:38,017 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:41:38,017 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:41:38,017 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:41:38,018 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:41:38,018 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:41:38,018 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:41:38,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:41:38,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:41:38,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:41:38,019 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:41:38,019 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:41:38,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:41:38,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:41:38,020 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:41:38,020 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 02:41:38,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:41:38,345 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:41:38,349 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:41:38,352 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:41:38,353 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:41:38,354 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c [2020-10-15 02:41:38,432 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a9e1fb1ff/094cdcb9013c4ffc9cb2ad46b3ceddcd/FLAG43676a2a9 [2020-10-15 02:41:38,957 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:41:38,958 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c [2020-10-15 02:41:38,970 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a9e1fb1ff/094cdcb9013c4ffc9cb2ad46b3ceddcd/FLAG43676a2a9 [2020-10-15 02:41:39,240 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a9e1fb1ff/094cdcb9013c4ffc9cb2ad46b3ceddcd [2020-10-15 02:41:39,250 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:41:39,251 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:41:39,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:41:39,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:41:39,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:41:39,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:41:39" (1/1) ... [2020-10-15 02:41:39,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3451cfe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:41:39, skipping insertion in model container [2020-10-15 02:41:39,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:41:39" (1/1) ... [2020-10-15 02:41:39,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:41:39,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:41:39,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:41:39,694 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:41:39,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:41:39,788 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:41:39,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:41:39 WrapperNode [2020-10-15 02:41:39,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:41:39,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:41:39,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:41:39,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:41:39,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:41:39" (1/1) ... [2020-10-15 02:41:39,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:41:39" (1/1) ... [2020-10-15 02:41:39,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:41:39" (1/1) ... [2020-10-15 02:41:39,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:41:39" (1/1) ... [2020-10-15 02:41:39,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:41:39" (1/1) ... [2020-10-15 02:41:39,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:41:39" (1/1) ... [2020-10-15 02:41:39,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:41:39" (1/1) ... [2020-10-15 02:41:39,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:41:39,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:41:39,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:41:39,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:41:39,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:41:39" (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 02:41:39,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:41:39,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:41:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 02:41:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-15 02:41:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-15 02:41:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-15 02:41:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 02:41:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 02:41:39,950 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:41:39,950 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-15 02:41:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:41:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:41:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 02:41:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:41:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:41:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:41:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 02:41:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:41:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:41:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:41:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:41:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:41:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:41:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:41:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:41:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:41:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:41:40,800 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:41:40,800 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 02:41:40,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:41:40 BoogieIcfgContainer [2020-10-15 02:41:40,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:41:40,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:41:40,809 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:41:40,812 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:41:40,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:41:39" (1/3) ... [2020-10-15 02:41:40,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@636cdc69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:41:40, skipping insertion in model container [2020-10-15 02:41:40,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:41:39" (2/3) ... [2020-10-15 02:41:40,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@636cdc69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:41:40, skipping insertion in model container [2020-10-15 02:41:40,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:41:40" (3/3) ... [2020-10-15 02:41:40,816 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c [2020-10-15 02:41:40,828 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:41:40,836 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:41:40,851 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:41:40,878 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:41:40,878 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:41:40,878 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:41:40,878 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:41:40,879 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:41:40,879 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:41:40,879 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:41:40,879 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:41:40,903 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2020-10-15 02:41:40,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 02:41:40,915 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:41:40,916 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] [2020-10-15 02:41:40,917 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:41:40,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:41:40,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1583782225, now seen corresponding path program 1 times [2020-10-15 02:41:40,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:41:40,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [597148180] [2020-10-15 02:41:40,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:41:41,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:41,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:41,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:41,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 02:41:41,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:41,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 379 [2020-10-15 02:41:41,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:41,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:41,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:41:41,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-15 02:41:41,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:41:41,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:41:41,886 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:41:41,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:41:41,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:41,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:41,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:41,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:41:41,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:41,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:41:41,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:41,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:41,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:41:41,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:41:41,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:41:41,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:41:41,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:41:41,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:41,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:41,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:41,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:41:41,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:41,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 02:41:41,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:41,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:41,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:41:41,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:41:41,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:41:41,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:41:41,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-15 02:41:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:41,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:41,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:41,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:41:41,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:41,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:41:41,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:41,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:41,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:41:41,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:41:41,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:41:41,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:41:42,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 02:41:42,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:42,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:42,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:42,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:41:42,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:42,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:41:42,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:42,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:42,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:41:42,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:41:42,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:41:42,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:41:42,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-15 02:41:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:42,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:42,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:42,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:41:42,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:42,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:41:42,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:42,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:42,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:41:42,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:41:42,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:41:42,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:41:42,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-15 02:41:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:42,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:42,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:42,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:41:42,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:42,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:41:42,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:42,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:42,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:41:42,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:41:42,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:41:42,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:41:42,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:41:42,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:42,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:42,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:42,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:41:42,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:42,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:41:42,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:42,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:42,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:41:42,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:41:42,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:41:42,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:41:42,186 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 02:41:42,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [597148180] [2020-10-15 02:41:42,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:41:42,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 02:41:42,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387488902] [2020-10-15 02:41:42,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 02:41:42,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:41:42,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 02:41:42,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:41:42,214 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 6 states. [2020-10-15 02:41:43,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:41:43,402 INFO L93 Difference]: Finished difference Result 302 states and 480 transitions. [2020-10-15 02:41:43,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 02:41:43,404 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-10-15 02:41:43,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:41:43,419 INFO L225 Difference]: With dead ends: 302 [2020-10-15 02:41:43,419 INFO L226 Difference]: Without dead ends: 192 [2020-10-15 02:41:43,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:41:43,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-15 02:41:43,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 174. [2020-10-15 02:41:43,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-10-15 02:41:43,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 279 transitions. [2020-10-15 02:41:43,503 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 279 transitions. Word has length 65 [2020-10-15 02:41:43,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:41:43,504 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 279 transitions. [2020-10-15 02:41:43,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 02:41:43,504 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 279 transitions. [2020-10-15 02:41:43,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 02:41:43,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:41:43,508 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] [2020-10-15 02:41:43,509 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:41:43,509 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:41:43,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:41:43,510 INFO L82 PathProgramCache]: Analyzing trace with hash 554422927, now seen corresponding path program 1 times [2020-10-15 02:41:43,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:41:43,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [337577318] [2020-10-15 02:41:43,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:41:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:43,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:44,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:44,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 02:41:44,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:44,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 760 [2020-10-15 02:41:44,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:44,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:44,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:41:44,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 02:41:44,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:41:44,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:41:44,543 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:41:44,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:41:44,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:44,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:44,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:44,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:41:44,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:44,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 02:41:44,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:44,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:44,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:41:44,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:41:44,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:41:44,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:41:44,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:41:44,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:44,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:44,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:44,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:41:44,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:44,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-15 02:41:44,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:44,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:44,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:41:44,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:41:44,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 02:41:44,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:41:44,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-15 02:41:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:44,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:44,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:44,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:41:44,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:44,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:41:44,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:44,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:44,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:41:44,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:41:44,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:41:44,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:41:44,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 02:41:44,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:44,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:44,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:44,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:41:44,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:44,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:41:44,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:44,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:44,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:41:44,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:41:44,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:41:44,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:41:44,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-15 02:41:44,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:44,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:44,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:44,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:41:44,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:44,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:41:44,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:44,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:44,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:41:44,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:41:44,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:41:44,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:41:44,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-15 02:41:44,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:44,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:44,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:44,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:41:44,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:44,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:41:44,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:44,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:44,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:41:44,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:41:44,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:41:44,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:41:45,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:41:45,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:45,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:45,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:45,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:41:45,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:45,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:41:45,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:45,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:45,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:41:45,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:41:45,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:41:45,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:41:45,039 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 02:41:45,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [337577318] [2020-10-15 02:41:45,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:41:45,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-15 02:41:45,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671733693] [2020-10-15 02:41:45,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 02:41:45,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:41:45,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 02:41:45,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-15 02:41:45,046 INFO L87 Difference]: Start difference. First operand 174 states and 279 transitions. Second operand 12 states. [2020-10-15 02:41:45,623 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:41:45,863 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-15 02:41:46,121 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:41:46,336 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:41:48,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:41:48,001 INFO L93 Difference]: Finished difference Result 300 states and 472 transitions. [2020-10-15 02:41:48,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 02:41:48,001 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 65 [2020-10-15 02:41:48,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:41:48,005 INFO L225 Difference]: With dead ends: 300 [2020-10-15 02:41:48,005 INFO L226 Difference]: Without dead ends: 192 [2020-10-15 02:41:48,007 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:41:48,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-15 02:41:48,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 174. [2020-10-15 02:41:48,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-10-15 02:41:48,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 249 transitions. [2020-10-15 02:41:48,034 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 249 transitions. Word has length 65 [2020-10-15 02:41:48,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:41:48,034 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 249 transitions. [2020-10-15 02:41:48,034 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 02:41:48,034 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 249 transitions. [2020-10-15 02:41:48,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-15 02:41:48,039 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:41:48,039 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:41:48,039 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:41:48,040 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:41:48,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:41:48,040 INFO L82 PathProgramCache]: Analyzing trace with hash 551989973, now seen corresponding path program 1 times [2020-10-15 02:41:48,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:41:48,041 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [160972425] [2020-10-15 02:41:48,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:41:48,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:48,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:48,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:48,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:49,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:53,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:53,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-15 02:41:53,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:41:53,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 02:41:53,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:53,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:53,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:41:53,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-15 02:41:53,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-15 02:41:53,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:41:53,383 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:41:53,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:41:53,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:53,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:53,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:53,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:41:53,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:53,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:41:53,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:53,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:53,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:41:53,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:41:53,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:41:53,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:41:53,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:41:53,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:53,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:53,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:53,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:41:53,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:53,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-15 02:41:53,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:53,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:53,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:41:53,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:41:53,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:41:53,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:41:53,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:41:53,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:53,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:53,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:53,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:41:53,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:53,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:41:53,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:53,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:53,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:41:53,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:41:53,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:41:53,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:41:53,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:41:53,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:53,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:53,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:53,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:41:53,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:53,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:41:53,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:53,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:53,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:41:53,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:41:53,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:41:53,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:41:53,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:41:53,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:53,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:53,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:53,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:41:53,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:53,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:41:53,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:53,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:53,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:41:53,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:41:53,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:41:53,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:41:53,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 02:41:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:53,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:53,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:53,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:41:53,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:53,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-15 02:41:53,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:53,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:53,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:41:53,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:41:53,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:41:53,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:41:53,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-15 02:41:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:53,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:53,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:41:53,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:41:53,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:41:53,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:41:53,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:41:53,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:41:53,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:41:53,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:41:53,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:41:53,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:41:53,825 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 02:41:53,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [160972425] [2020-10-15 02:41:53,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:41:53,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:41:53,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105264540] [2020-10-15 02:41:53,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:41:53,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:41:53,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:41:53,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:41:53,828 INFO L87 Difference]: Start difference. First operand 174 states and 249 transitions. Second operand 9 states. [2020-10-15 02:41:54,023 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:41:56,293 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-15 02:41:56,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:41:56,669 INFO L93 Difference]: Finished difference Result 420 states and 629 transitions. [2020-10-15 02:41:56,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 02:41:56,672 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-10-15 02:41:56,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:41:56,684 INFO L225 Difference]: With dead ends: 420 [2020-10-15 02:41:56,684 INFO L226 Difference]: Without dead ends: 318 [2020-10-15 02:41:56,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:41:56,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-10-15 02:41:56,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 276. [2020-10-15 02:41:56,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-15 02:41:56,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 408 transitions. [2020-10-15 02:41:56,760 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 408 transitions. Word has length 94 [2020-10-15 02:41:56,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:41:56,761 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 408 transitions. [2020-10-15 02:41:56,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:41:56,761 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 408 transitions. [2020-10-15 02:41:56,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-15 02:41:56,770 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:41:56,771 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:41:56,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:41:56,773 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:41:56,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:41:56,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1641383990, now seen corresponding path program 1 times [2020-10-15 02:41:56,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:41:56,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1585722929] [2020-10-15 02:41:56,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:41:56,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:41:56,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:56,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:56,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:57,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:41:57,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:01,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:01,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-15 02:42:01,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:42:01,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-15 02:42:01,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:01,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:01,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:42:01,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:42:01,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-15 02:42:01,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:02,038 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:42:02,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:42:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:02,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:02,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:02,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:42:02,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:02,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:42:02,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:02,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:02,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:42:02,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:42:02,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:42:02,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:02,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:42:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:02,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:02,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:02,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:42:02,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:02,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-15 02:42:02,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:02,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:02,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:42:02,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:42:02,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:42:02,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:02,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:42:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:02,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:02,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:02,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:42:02,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:02,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:42:02,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:02,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:02,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:42:02,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:42:02,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:42:02,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:02,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:42:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:02,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:02,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:02,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:42:02,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:02,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:42:02,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:02,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:02,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:42:02,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:42:02,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:42:02,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:42:02,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:42:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:02,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:02,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:02,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:42:02,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:02,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:42:02,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:02,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:02,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:42:02,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:42:02,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:42:02,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:02,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 02:42:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:02,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:02,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:02,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:42:02,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:02,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:42:02,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:02,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:02,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:42:02,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:42:02,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:42:02,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:02,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-15 02:42:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:02,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:02,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:02,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:42:02,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:02,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:42:02,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:02,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:02,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:42:02,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:42:02,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:42:02,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:02,397 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 02:42:02,397 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1585722929] [2020-10-15 02:42:02,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:42:02,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:42:02,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941048685] [2020-10-15 02:42:02,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:42:02,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:42:02,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:42:02,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:42:02,400 INFO L87 Difference]: Start difference. First operand 276 states and 408 transitions. Second operand 9 states. [2020-10-15 02:42:02,585 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:42:02,747 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-15 02:42:02,979 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:42:03,138 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-15 02:42:03,743 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:42:06,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:42:06,040 INFO L93 Difference]: Finished difference Result 839 states and 1246 transitions. [2020-10-15 02:42:06,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:42:06,041 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-10-15 02:42:06,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:42:06,046 INFO L225 Difference]: With dead ends: 839 [2020-10-15 02:42:06,046 INFO L226 Difference]: Without dead ends: 588 [2020-10-15 02:42:06,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:42:06,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2020-10-15 02:42:06,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 526. [2020-10-15 02:42:06,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-10-15 02:42:06,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 765 transitions. [2020-10-15 02:42:06,097 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 765 transitions. Word has length 96 [2020-10-15 02:42:06,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:42:06,097 INFO L479 AbstractCegarLoop]: Abstraction has 526 states and 765 transitions. [2020-10-15 02:42:06,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:42:06,098 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 765 transitions. [2020-10-15 02:42:06,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-15 02:42:06,100 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:42:06,100 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:42:06,101 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:42:06,101 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:42:06,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:42:06,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1300525768, now seen corresponding path program 1 times [2020-10-15 02:42:06,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:42:06,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456753616] [2020-10-15 02:42:06,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:42:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:06,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:06,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:06,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:06,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:07,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:11,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:11,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-15 02:42:11,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:42:11,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-15 02:42:11,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:11,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:11,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:42:11,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:42:11,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-15 02:42:11,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:11,325 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:42:11,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:42:11,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:11,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:11,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:11,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:42:11,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:11,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:42:11,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:11,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:11,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:42:11,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:42:11,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:42:11,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:11,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:42:11,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:11,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:11,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:11,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:42:11,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:11,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-15 02:42:11,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:11,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:11,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:42:11,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:42:11,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:42:11,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:11,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:42:11,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:11,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:11,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:11,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:42:11,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:11,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:42:11,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:11,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:11,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:42:11,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:42:11,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:42:11,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:11,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:42:11,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:11,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:11,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:11,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:42:11,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:11,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:42:11,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:11,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:11,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:42:11,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:42:11,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:42:11,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:11,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:42:11,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:11,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:11,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:11,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:42:11,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:11,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:42:11,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:11,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:11,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:42:11,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:42:11,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:42:11,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:11,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 02:42:11,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:11,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:11,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:11,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:42:11,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:11,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:42:11,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:11,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:42:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:42:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:42:11,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:42:11,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-15 02:42:11,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:11,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:11,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:11,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:42:11,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:11,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:42:11,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:11,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:11,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:42:11,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:42:11,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:42:11,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:42:11,675 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 02:42:11,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [456753616] [2020-10-15 02:42:11,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:42:11,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:42:11,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393075129] [2020-10-15 02:42:11,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:42:11,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:42:11,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:42:11,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:42:11,677 INFO L87 Difference]: Start difference. First operand 526 states and 765 transitions. Second operand 9 states. [2020-10-15 02:42:11,877 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:42:12,093 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-15 02:42:12,320 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:42:12,673 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 162 [2020-10-15 02:42:13,609 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:42:16,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:42:16,583 INFO L93 Difference]: Finished difference Result 2098 states and 3080 transitions. [2020-10-15 02:42:16,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:42:16,585 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-10-15 02:42:16,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:42:16,599 INFO L225 Difference]: With dead ends: 2098 [2020-10-15 02:42:16,599 INFO L226 Difference]: Without dead ends: 1614 [2020-10-15 02:42:16,602 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:42:16,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2020-10-15 02:42:16,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1448. [2020-10-15 02:42:16,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1448 states. [2020-10-15 02:42:16,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 2098 transitions. [2020-10-15 02:42:16,765 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 2098 transitions. Word has length 97 [2020-10-15 02:42:16,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:42:16,765 INFO L479 AbstractCegarLoop]: Abstraction has 1448 states and 2098 transitions. [2020-10-15 02:42:16,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:42:16,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 2098 transitions. [2020-10-15 02:42:16,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-15 02:42:16,769 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:42:16,770 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:42:16,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:42:16,770 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:42:16,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:42:16,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1019796933, now seen corresponding path program 1 times [2020-10-15 02:42:16,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:42:16,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [31977029] [2020-10-15 02:42:16,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:42:16,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:16,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:16,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:16,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:17,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:18,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:21,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:21,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-15 02:42:21,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:42:21,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-15 02:42:21,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:21,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:21,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:42:21,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-15 02:42:21,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-15 02:42:21,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:42:22,028 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:42:22,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:42:22,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:22,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:22,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:22,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:42:22,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:22,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:42:22,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:22,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:22,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:42:22,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:42:22,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:42:22,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:22,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:42:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:22,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:22,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:22,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:42:22,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:22,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-15 02:42:22,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:22,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:22,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:42:22,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:42:22,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 02:42:22,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:22,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:42:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:22,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:22,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:22,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:42:22,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:22,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:42:22,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:22,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:22,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:42:22,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:42:22,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:42:22,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:22,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:42:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:22,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:22,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:22,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:42:22,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:22,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:42:22,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:22,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:22,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:42:22,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:42:22,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:42:22,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:22,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:42:22,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:22,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:22,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:22,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:42:22,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:22,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:42:22,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:22,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:22,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:42:22,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:42:22,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:42:22,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:22,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 02:42:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:22,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:22,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:22,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:42:22,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:22,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:42:22,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:22,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:22,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:42:22,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-15 02:42:22,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:42:22,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:22,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-15 02:42:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:22,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:22,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:22,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:42:22,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:22,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:42:22,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:22,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:22,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:42:22,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:42:22,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:42:22,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:42:22,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:42:22,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [31977029] [2020-10-15 02:42:22,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:42:22,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:42:22,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668189128] [2020-10-15 02:42:22,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:42:22,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:42:22,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:42:22,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:42:22,439 INFO L87 Difference]: Start difference. First operand 1448 states and 2098 transitions. Second operand 9 states. [2020-10-15 02:42:22,726 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:42:25,152 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-15 02:42:25,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:42:25,533 INFO L93 Difference]: Finished difference Result 3555 states and 5304 transitions. [2020-10-15 02:42:25,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 02:42:25,534 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-10-15 02:42:25,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:42:25,550 INFO L225 Difference]: With dead ends: 3555 [2020-10-15 02:42:25,551 INFO L226 Difference]: Without dead ends: 2544 [2020-10-15 02:42:25,555 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:42:25,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2544 states. [2020-10-15 02:42:25,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2544 to 2240. [2020-10-15 02:42:25,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2240 states. [2020-10-15 02:42:25,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2240 states to 2240 states and 3278 transitions. [2020-10-15 02:42:25,741 INFO L78 Accepts]: Start accepts. Automaton has 2240 states and 3278 transitions. Word has length 98 [2020-10-15 02:42:25,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:42:25,742 INFO L479 AbstractCegarLoop]: Abstraction has 2240 states and 3278 transitions. [2020-10-15 02:42:25,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:42:25,742 INFO L276 IsEmpty]: Start isEmpty. Operand 2240 states and 3278 transitions. [2020-10-15 02:42:25,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-15 02:42:25,746 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:42:25,746 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:42:25,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:42:25,747 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:42:25,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:42:25,747 INFO L82 PathProgramCache]: Analyzing trace with hash 2033521008, now seen corresponding path program 1 times [2020-10-15 02:42:25,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:42:25,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [922403633] [2020-10-15 02:42:25,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:42:25,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:25,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:25,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:25,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:26,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:26,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:26,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:30,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:30,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-15 02:42:30,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:42:30,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 02:42:30,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:30,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:30,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:42:30,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:42:30,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-15 02:42:30,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:42:31,034 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:42:31,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:42:31,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:31,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:31,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:31,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:42:31,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:31,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:42:31,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:31,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:31,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:42:31,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:42:31,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:42:31,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:42:31,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:42:31,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:31,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:31,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:31,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:42:31,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:31,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-15 02:42:31,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:31,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:31,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:42:31,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:42:31,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:42:31,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:42:31,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:42:31,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:31,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:31,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:31,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:42:31,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:31,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:42:31,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:31,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:31,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:42:31,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:42:31,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:42:31,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:31,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:42:31,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:31,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:31,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:31,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:42:31,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:31,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:42:31,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:31,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:31,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:42:31,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:42:31,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:42:31,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:31,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:42:31,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:31,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:31,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:31,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:42:31,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:31,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:42:31,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:31,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:31,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:42:31,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:42:31,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:42:31,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:31,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:42:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:31,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:31,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:31,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:42:31,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:31,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:42:31,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:31,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:31,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:42:31,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-15 02:42:31,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:42:31,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:31,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-15 02:42:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:31,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:31,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:31,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:42:31,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:31,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:42:31,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:31,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:31,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:42:31,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:42:31,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:42:31,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:42:31,405 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 02:42:31,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [922403633] [2020-10-15 02:42:31,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:42:31,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:42:31,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917832480] [2020-10-15 02:42:31,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:42:31,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:42:31,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:42:31,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:42:31,413 INFO L87 Difference]: Start difference. First operand 2240 states and 3278 transitions. Second operand 9 states. [2020-10-15 02:42:31,631 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:42:31,857 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-15 02:42:32,126 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:42:32,670 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 162 [2020-10-15 02:42:33,305 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:42:36,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:42:36,450 INFO L93 Difference]: Finished difference Result 7664 states and 11402 transitions. [2020-10-15 02:42:36,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:42:36,451 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 100 [2020-10-15 02:42:36,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:42:36,485 INFO L225 Difference]: With dead ends: 7664 [2020-10-15 02:42:36,485 INFO L226 Difference]: Without dead ends: 5776 [2020-10-15 02:42:36,495 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:42:36,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5776 states. [2020-10-15 02:42:36,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5776 to 5214. [2020-10-15 02:42:36,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5214 states. [2020-10-15 02:42:36,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5214 states to 5214 states and 7585 transitions. [2020-10-15 02:42:36,852 INFO L78 Accepts]: Start accepts. Automaton has 5214 states and 7585 transitions. Word has length 100 [2020-10-15 02:42:36,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:42:36,852 INFO L479 AbstractCegarLoop]: Abstraction has 5214 states and 7585 transitions. [2020-10-15 02:42:36,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:42:36,853 INFO L276 IsEmpty]: Start isEmpty. Operand 5214 states and 7585 transitions. [2020-10-15 02:42:36,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-15 02:42:36,862 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:42:36,863 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:42:36,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:42:36,863 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:42:36,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:42:36,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1530825376, now seen corresponding path program 1 times [2020-10-15 02:42:36,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:42:36,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1516300969] [2020-10-15 02:42:36,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:42:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:36,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:36,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:37,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:37,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:37,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:37,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:41,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:41,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-15 02:42:41,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:42:41,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 02:42:41,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:41,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:41,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:42:41,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:42:41,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-15 02:42:41,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:42:42,116 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:42:42,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:42:42,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:42,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:42,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:42,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:42:42,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:42,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:42:42,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:42,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:42,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:42:42,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:42:42,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:42:42,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:42,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:42:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:42,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:42,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:42,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:42:42,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:42,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-15 02:42:42,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:42,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:42,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:42:42,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:42:42,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:42:42,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:42:42,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:42:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:42,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:42,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:42,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:42:42,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:42,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:42:42,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:42,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:42,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:42:42,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:42:42,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:42:42,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:42:42,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:42:42,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:42,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:42,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:42,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:42:42,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:42,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:42:42,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:42,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:42,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:42:42,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:42:42,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:42:42,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:42,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:42:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:42,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:42,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:42,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:42:42,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:42,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:42:42,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:42,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:42,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:42:42,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:42:42,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:42:42,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:42:42,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 02:42:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:42,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:42,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:42,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:42:42,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:42,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:42:42,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:42,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:42,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:42:42,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-15 02:42:42,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:42:42,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:42:42,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-15 02:42:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:42,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:42,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:42,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:42:42,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:42,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:42:42,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:42,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:42,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:42:42,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:42:42,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:42:42,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:42:42,458 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 02:42:42,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1516300969] [2020-10-15 02:42:42,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:42:42,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:42:42,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389236909] [2020-10-15 02:42:42,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:42:42,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:42:42,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:42:42,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:42:42,462 INFO L87 Difference]: Start difference. First operand 5214 states and 7585 transitions. Second operand 9 states. [2020-10-15 02:42:42,652 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:42:42,865 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-15 02:42:43,152 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-15 02:42:43,532 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 162 [2020-10-15 02:42:44,446 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:42:47,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:42:47,593 INFO L93 Difference]: Finished difference Result 18736 states and 27408 transitions. [2020-10-15 02:42:47,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:42:47,594 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 101 [2020-10-15 02:42:47,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:42:47,686 INFO L225 Difference]: With dead ends: 18736 [2020-10-15 02:42:47,686 INFO L226 Difference]: Without dead ends: 13575 [2020-10-15 02:42:47,710 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:42:47,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13575 states. [2020-10-15 02:42:48,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13575 to 12427. [2020-10-15 02:42:48,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12427 states. [2020-10-15 02:42:48,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12427 states to 12427 states and 17767 transitions. [2020-10-15 02:42:48,528 INFO L78 Accepts]: Start accepts. Automaton has 12427 states and 17767 transitions. Word has length 101 [2020-10-15 02:42:48,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:42:48,528 INFO L479 AbstractCegarLoop]: Abstraction has 12427 states and 17767 transitions. [2020-10-15 02:42:48,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:42:48,529 INFO L276 IsEmpty]: Start isEmpty. Operand 12427 states and 17767 transitions. [2020-10-15 02:42:48,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-15 02:42:48,552 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:42:48,552 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:42:48,552 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:42:48,553 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:42:48,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:42:48,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1077146709, now seen corresponding path program 1 times [2020-10-15 02:42:48,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:42:48,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [40553158] [2020-10-15 02:42:48,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:42:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:48,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:48,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:48,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:48,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:49,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:49,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:53,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:53,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-15 02:42:53,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:42:53,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 02:42:53,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:53,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:53,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:42:53,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-15 02:42:53,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-15 02:42:53,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:42:53,896 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:42:53,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:42:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:53,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:53,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:53,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:42:53,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:53,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:42:53,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:53,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:53,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:42:53,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:42:53,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:42:53,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:42:53,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:42:53,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:53,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:53,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:53,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:42:53,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:53,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-15 02:42:53,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:53,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:53,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:42:53,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:42:53,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:42:53,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:42:53,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:42:53,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:53,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:53,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:53,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:42:53,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:53,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:42:53,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:53,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:53,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:42:53,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:42:53,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:42:53,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:42:54,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:42:54,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:54,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:54,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:54,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:42:54,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:54,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:42:54,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:54,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:54,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:42:54,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:42:54,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:42:54,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:42:54,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:42:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:54,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:54,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:54,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:42:54,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:54,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:42:54,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:54,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:54,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:42:54,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:42:54,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:42:54,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:42:54,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:42:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:54,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:54,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:54,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:42:54,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:54,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:42:54,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:54,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:54,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:42:54,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:42:54,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:42:54,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:42:54,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-15 02:42:54,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:42:54,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:42:54,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:42:54,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:42:54,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:42:54,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:42:54,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:42:54,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:42:54,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:42:54,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:42:54,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:42:54,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:42:54,258 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 02:42:54,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [40553158] [2020-10-15 02:42:54,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:42:54,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 02:42:54,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897882730] [2020-10-15 02:42:54,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:42:54,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:42:54,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:42:54,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:42:54,260 INFO L87 Difference]: Start difference. First operand 12427 states and 17767 transitions. Second operand 13 states. [2020-10-15 02:42:54,509 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:42:54,982 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-15 02:42:55,162 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:42:57,317 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-15 02:42:57,504 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:42:58,070 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:43:01,920 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-15 02:43:03,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:43:03,332 INFO L93 Difference]: Finished difference Result 63737 states and 94434 transitions. [2020-10-15 02:43:03,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-15 02:43:03,337 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 102 [2020-10-15 02:43:03,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:43:03,613 INFO L225 Difference]: With dead ends: 63737 [2020-10-15 02:43:03,614 INFO L226 Difference]: Without dead ends: 54411 [2020-10-15 02:43:03,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 736 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=588, Invalid=1962, Unknown=0, NotChecked=0, Total=2550 [2020-10-15 02:43:03,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54411 states. [2020-10-15 02:43:07,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54411 to 48645. [2020-10-15 02:43:07,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48645 states. [2020-10-15 02:43:08,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48645 states to 48645 states and 71004 transitions. [2020-10-15 02:43:08,068 INFO L78 Accepts]: Start accepts. Automaton has 48645 states and 71004 transitions. Word has length 102 [2020-10-15 02:43:08,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:43:08,069 INFO L479 AbstractCegarLoop]: Abstraction has 48645 states and 71004 transitions. [2020-10-15 02:43:08,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:43:08,069 INFO L276 IsEmpty]: Start isEmpty. Operand 48645 states and 71004 transitions. [2020-10-15 02:43:08,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-15 02:43:08,104 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:43:08,104 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:43:08,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:43:08,105 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:43:08,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:43:08,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1742926332, now seen corresponding path program 1 times [2020-10-15 02:43:08,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:43:08,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1362135212] [2020-10-15 02:43:08,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:43:08,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:08,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:08,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:08,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:08,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:08,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:09,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:13,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:13,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-15 02:43:13,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:43:13,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5064 [2020-10-15 02:43:13,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:13,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:13,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:43:13,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-15 02:43:13,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-15 02:43:13,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:13,384 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:43:13,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:43:13,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:13,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:13,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:13,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:43:13,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:13,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:43:13,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:13,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:13,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:13,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:13,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:13,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:13,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:43:13,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:13,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:13,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:13,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:43:13,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:13,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-15 02:43:13,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:13,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:13,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:43:13,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:13,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-15 02:43:13,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:13,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:43:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:13,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:13,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:13,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:43:13,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:13,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:43:13,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:13,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:13,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:13,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:13,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:43:13,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:13,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:43:13,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:13,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:13,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:13,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:13,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:13,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:43:13,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:13,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:13,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:43:13,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:43:13,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:43:13,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:13,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:43:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:13,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:13,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:13,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:43:13,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:13,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:43:13,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:13,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:13,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:13,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:13,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:43:13,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:13,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:43:13,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:13,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:13,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:13,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:43:13,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:13,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:43:13,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:13,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:13,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:13,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:13,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:43:13,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:13,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-15 02:43:13,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:13,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:13,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:13,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:13,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:13,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:43:13,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:13,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:13,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:13,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:43:13,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:43:13,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:13,612 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 02:43:13,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1362135212] [2020-10-15 02:43:13,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:43:13,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:43:13,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271313479] [2020-10-15 02:43:13,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:43:13,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:43:13,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:43:13,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:43:13,614 INFO L87 Difference]: Start difference. First operand 48645 states and 71004 transitions. Second operand 10 states. [2020-10-15 02:43:13,809 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:43:14,284 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-15 02:43:16,669 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:43:16,858 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-15 02:43:22,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:43:22,205 INFO L93 Difference]: Finished difference Result 166081 states and 242261 transitions. [2020-10-15 02:43:22,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 02:43:22,206 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 103 [2020-10-15 02:43:22,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:43:22,759 INFO L225 Difference]: With dead ends: 166081 [2020-10-15 02:43:22,759 INFO L226 Difference]: Without dead ends: 120919 [2020-10-15 02:43:22,920 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=254, Invalid=802, Unknown=0, NotChecked=0, Total=1056 [2020-10-15 02:43:23,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120919 states. [2020-10-15 02:43:29,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120919 to 108539. [2020-10-15 02:43:29,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108539 states. [2020-10-15 02:43:29,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108539 states to 108539 states and 157253 transitions. [2020-10-15 02:43:29,850 INFO L78 Accepts]: Start accepts. Automaton has 108539 states and 157253 transitions. Word has length 103 [2020-10-15 02:43:29,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:43:29,850 INFO L479 AbstractCegarLoop]: Abstraction has 108539 states and 157253 transitions. [2020-10-15 02:43:29,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:43:29,850 INFO L276 IsEmpty]: Start isEmpty. Operand 108539 states and 157253 transitions. [2020-10-15 02:43:29,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-15 02:43:29,899 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:43:29,899 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:43:29,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 02:43:29,899 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:43:29,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:43:29,900 INFO L82 PathProgramCache]: Analyzing trace with hash 977437676, now seen corresponding path program 1 times [2020-10-15 02:43:29,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:43:29,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [348501855] [2020-10-15 02:43:29,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:43:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:29,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:29,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:30,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:30,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:30,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:32,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:34,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:34,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-15 02:43:34,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:43:34,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 02:43:34,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:34,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:34,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:43:34,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-15 02:43:34,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-15 02:43:34,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:35,107 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:43:35,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:43:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:35,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:35,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:35,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:43:35,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:35,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:43:35,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:35,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:35,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:35,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:35,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:35,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:35,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:43:35,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:35,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:35,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:35,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:43:35,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:35,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-15 02:43:35,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:35,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:35,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:43:35,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:35,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 02:43:35,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:35,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:43:35,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:35,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:35,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:35,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:43:35,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:35,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:43:35,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:35,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:35,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:35,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:35,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:43:35,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:35,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:43:35,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:35,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:35,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:35,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:35,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:35,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:43:35,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:35,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:35,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:35,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:35,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:43:35,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:35,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:43:35,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:35,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:35,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:35,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:43:35,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:35,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:43:35,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:35,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:35,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:43:35,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:43:35,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:43:35,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:35,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:43:35,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:35,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:35,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:35,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:43:35,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:35,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:43:35,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:35,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:35,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:35,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:35,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:43:35,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:35,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-15 02:43:35,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:35,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:35,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:35,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:43:35,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:35,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:43:35,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:35,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:35,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:35,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:43:35,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:43:35,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:35,368 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 02:43:35,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [348501855] [2020-10-15 02:43:35,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:43:35,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:43:35,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486256858] [2020-10-15 02:43:35,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:43:35,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:43:35,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:43:35,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:43:35,370 INFO L87 Difference]: Start difference. First operand 108539 states and 157253 transitions. Second operand 10 states. [2020-10-15 02:43:35,555 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:43:35,990 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-15 02:43:37,704 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:43:37,887 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-15 02:43:48,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:43:48,510 INFO L93 Difference]: Finished difference Result 380093 states and 551749 transitions. [2020-10-15 02:43:48,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 02:43:48,510 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 104 [2020-10-15 02:43:48,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:43:49,502 INFO L225 Difference]: With dead ends: 380093 [2020-10-15 02:43:49,503 INFO L226 Difference]: Without dead ends: 275419 [2020-10-15 02:43:49,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=254, Invalid=802, Unknown=0, NotChecked=0, Total=1056 [2020-10-15 02:43:49,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275419 states. [2020-10-15 02:44:05,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275419 to 245703. [2020-10-15 02:44:05,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245703 states. [2020-10-15 02:44:05,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245703 states to 245703 states and 356505 transitions. [2020-10-15 02:44:05,664 INFO L78 Accepts]: Start accepts. Automaton has 245703 states and 356505 transitions. Word has length 104 [2020-10-15 02:44:05,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:44:05,664 INFO L479 AbstractCegarLoop]: Abstraction has 245703 states and 356505 transitions. [2020-10-15 02:44:05,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:44:05,665 INFO L276 IsEmpty]: Start isEmpty. Operand 245703 states and 356505 transitions. [2020-10-15 02:44:05,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-15 02:44:05,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:44:05,716 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:44:05,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 02:44:05,716 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:44:05,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:44:05,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1563996937, now seen corresponding path program 1 times [2020-10-15 02:44:05,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:44:05,717 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1081548293] [2020-10-15 02:44:05,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:44:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:05,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:05,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:05,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:05,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:05,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:06,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:07,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:10,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:10,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-15 02:44:10,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:44:10,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 02:44:10,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:10,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:10,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:44:10,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:44:10,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-15 02:44:10,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:10,930 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:44:10,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:44:10,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:10,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:10,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:10,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:44:10,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:10,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:44:10,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:10,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:10,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:44:10,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:10,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:44:10,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:10,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:44:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:10,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:10,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:10,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:11,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:11,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-15 02:44:11,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:44:11,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-10-15 02:44:11,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:11,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:11,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:44:11,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:44:11,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:44:11,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:11,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:44:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:11,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:11,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:11,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:44:11,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:11,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:44:11,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:11,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:11,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:11,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:11,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:44:11,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:11,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 02:44:11,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:11,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:11,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:11,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:44:11,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:11,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:44:11,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:11,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:11,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:11,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:11,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:44:11,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:11,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:44:11,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:11,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:11,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:11,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:44:11,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:11,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:44:11,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:11,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:11,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:11,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-15 02:44:11,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:44:11,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:11,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-15 02:44:11,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:11,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:11,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:11,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:44:11,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:11,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:44:11,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:11,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:11,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:44:11,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:44:11,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:44:11,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:11,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-15 02:44:11,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:11,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:11,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:11,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:44:11,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:11,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:44:11,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:11,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:11,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:44:11,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:44:11,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:44:11,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:11,374 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 02:44:11,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1081548293] [2020-10-15 02:44:11,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:44:11,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:44:11,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710819656] [2020-10-15 02:44:11,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:44:11,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:44:11,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:44:11,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:44:11,376 INFO L87 Difference]: Start difference. First operand 245703 states and 356505 transitions. Second operand 10 states. [2020-10-15 02:44:11,575 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:44:11,986 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:44:12,174 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-15 02:44:12,340 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:44:12,548 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-15 02:44:12,740 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-15 02:44:30,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:44:30,259 INFO L93 Difference]: Finished difference Result 585648 states and 863767 transitions. [2020-10-15 02:44:30,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 02:44:30,260 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 104 [2020-10-15 02:44:30,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:44:31,240 INFO L225 Difference]: With dead ends: 585648 [2020-10-15 02:44:31,240 INFO L226 Difference]: Without dead ends: 340257 [2020-10-15 02:44:31,606 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2020-10-15 02:44:31,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340257 states. [2020-10-15 02:44:53,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340257 to 310991. [2020-10-15 02:44:53,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310991 states. [2020-10-15 02:44:55,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310991 states to 310991 states and 443037 transitions. [2020-10-15 02:44:55,424 INFO L78 Accepts]: Start accepts. Automaton has 310991 states and 443037 transitions. Word has length 104 [2020-10-15 02:44:55,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:44:55,424 INFO L479 AbstractCegarLoop]: Abstraction has 310991 states and 443037 transitions. [2020-10-15 02:44:55,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:44:55,424 INFO L276 IsEmpty]: Start isEmpty. Operand 310991 states and 443037 transitions. [2020-10-15 02:44:55,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-15 02:44:55,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:44:55,455 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:44:55,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 02:44:55,456 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:44:55,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:44:55,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1076632633, now seen corresponding path program 1 times [2020-10-15 02:44:55,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:44:55,456 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1025727248] [2020-10-15 02:44:55,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:44:55,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:55,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:55,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:55,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:55,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:55,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking...