/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:38:21,812 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:38:21,815 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:38:21,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:38:21,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:38:21,868 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:38:21,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:38:21,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:38:21,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:38:21,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:38:21,879 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:38:21,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:38:21,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:38:21,884 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:38:21,887 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:38:21,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:38:21,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:38:21,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:38:21,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:38:21,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:38:21,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:38:21,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:38:21,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:38:21,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:38:21,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:38:21,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:38:21,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:38:21,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:38:21,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:38:21,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:38:21,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:38:21,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:38:21,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:38:21,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:38:21,926 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:38:21,926 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:38:21,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:38:21,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:38:21,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:38:21,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:38:21,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:38:21,930 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 18:38:21,966 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:38:21,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:38:21,968 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:38:21,968 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:38:21,968 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:38:21,968 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:38:21,969 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:38:21,969 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:38:21,969 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:38:21,969 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:38:21,970 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:38:21,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:38:21,970 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:38:21,971 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:38:21,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:38:21,971 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:38:21,971 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:38:21,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:38:21,972 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:38:21,972 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:38:21,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:38:21,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:38:21,972 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:38:21,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:38:21,973 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:38:21,973 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:38:21,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:38:21,973 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:38:21,974 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:38:21,974 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 18:38:22,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:38:22,277 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:38:22,281 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:38:22,284 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:38:22,284 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:38:22,285 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.ufo.UNBOUNDED.pals.c [2020-10-12 18:38:22,359 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/76d1c2bb5/424ed7d70d20469f84820fc6f2c90f5c/FLAG8551ace02 [2020-10-12 18:38:22,868 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:38:22,868 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.ufo.UNBOUNDED.pals.c [2020-10-12 18:38:22,883 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/76d1c2bb5/424ed7d70d20469f84820fc6f2c90f5c/FLAG8551ace02 [2020-10-12 18:38:23,177 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/76d1c2bb5/424ed7d70d20469f84820fc6f2c90f5c [2020-10-12 18:38:23,187 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:38:23,189 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:38:23,190 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:38:23,190 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:38:23,194 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:38:23,195 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:38:23" (1/1) ... [2020-10-12 18:38:23,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:38:23, skipping insertion in model container [2020-10-12 18:38:23,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:38:23" (1/1) ... [2020-10-12 18:38:23,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:38:23,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:38:23,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:38:23,733 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:38:23,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:38:23,843 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:38:23,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:38:23 WrapperNode [2020-10-12 18:38:23,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:38:23,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:38:23,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:38:23,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:38:23,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:38:23" (1/1) ... [2020-10-12 18:38:23,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:38:23" (1/1) ... [2020-10-12 18:38:23,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:38:23" (1/1) ... [2020-10-12 18:38:23,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:38:23" (1/1) ... [2020-10-12 18:38:23,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:38:23" (1/1) ... [2020-10-12 18:38:23,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:38:23" (1/1) ... [2020-10-12 18:38:23,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:38:23" (1/1) ... [2020-10-12 18:38:23,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:38:23,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:38:23,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:38:23,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:38:23,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:38:23" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:38:24,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:38:24,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:38:24,016 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 18:38:24,017 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-12 18:38:24,017 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-12 18:38:24,017 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-12 18:38:24,017 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-12 18:38:24,017 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 18:38:24,017 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-12 18:38:24,018 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:38:24,018 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 18:38:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:38:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 18:38:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-12 18:38:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 18:38:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 18:38:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 18:38:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 18:38:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 18:38:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 18:38:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 18:38:24,020 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 18:38:24,020 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 18:38:24,020 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 18:38:24,020 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 18:38:24,020 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 18:38:24,020 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:38:24,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:38:24,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:38:25,402 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:38:25,403 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 18:38:25,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:38:25 BoogieIcfgContainer [2020-10-12 18:38:25,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:38:25,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:38:25,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:38:25,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:38:25,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:38:23" (1/3) ... [2020-10-12 18:38:25,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48adcd6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:38:25, skipping insertion in model container [2020-10-12 18:38:25,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:38:23" (2/3) ... [2020-10-12 18:38:25,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48adcd6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:38:25, skipping insertion in model container [2020-10-12 18:38:25,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:38:25" (3/3) ... [2020-10-12 18:38:25,417 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.ufo.UNBOUNDED.pals.c [2020-10-12 18:38:25,427 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:38:25,435 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:38:25,449 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:38:25,475 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:38:25,475 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:38:25,475 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:38:25,476 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:38:25,476 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:38:25,476 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:38:25,476 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:38:25,477 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:38:25,501 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states. [2020-10-12 18:38:25,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-12 18:38:25,517 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:38:25,518 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] [2020-10-12 18:38:25,519 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:38:25,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:38:25,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1386901003, now seen corresponding path program 1 times [2020-10-12 18:38:25,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:38:25,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2095560014] [2020-10-12 18:38:25,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:38:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:26,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:26,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:26,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 18:38:26,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:26,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 598 [2020-10-12 18:38:26,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:26,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:38:26,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-12 18:38:26,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:38:26,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 18:38:27,106 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:38:27,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:38:27,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:27,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:27,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:27,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:38:27,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:27,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 18:38:27,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:27,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:38:27,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:27,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:38:27,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:27,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:38:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:27,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:27,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:27,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 18:38:27,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:27,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-12 18:38:27,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:27,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:38:27,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:27,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:38:27,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:27,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:38:27,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:27,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:27,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:27,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:38:27,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:27,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:38:27,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:27,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:38:27,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:38:27,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:38:27,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:38:27,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:38:27,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:27,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:27,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:27,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:27,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:27,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:38:27,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:27,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:38:27,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:38:27,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:38:27,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:38:27,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:38:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:27,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:27,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:27,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:27,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:27,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:38:27,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:27,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:38:27,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:38:27,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:38:27,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:27,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:38:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:27,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:27,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:27,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:27,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:27,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:38:27,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:27,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:38:27,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:38:27,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:38:27,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-12 18:38:27,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-12 18:38:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:27,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:27,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:27,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:27,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:27,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:38:27,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:27,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:38:27,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:38:27,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:38:27,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:27,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-12 18:38:27,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:27,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:27,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:27,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:27,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:27,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:38:27,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:27,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:38:27,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:38:27,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:38:27,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:27,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:38:27,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2095560014] [2020-10-12 18:38:27,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:38:27,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 18:38:27,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267471239] [2020-10-12 18:38:27,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 18:38:27,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:38:27,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 18:38:27,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 18:38:27,687 INFO L87 Difference]: Start difference. First operand 341 states. Second operand 7 states. [2020-10-12 18:38:29,031 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:38:29,386 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:38:30,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:38:30,192 INFO L93 Difference]: Finished difference Result 508 states and 855 transitions. [2020-10-12 18:38:30,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 18:38:30,195 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 104 [2020-10-12 18:38:30,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:38:30,213 INFO L225 Difference]: With dead ends: 508 [2020-10-12 18:38:30,213 INFO L226 Difference]: Without dead ends: 368 [2020-10-12 18:38:30,218 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:38:30,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-10-12 18:38:30,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 336. [2020-10-12 18:38:30,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-10-12 18:38:30,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 579 transitions. [2020-10-12 18:38:30,319 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 579 transitions. Word has length 104 [2020-10-12 18:38:30,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:38:30,320 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 579 transitions. [2020-10-12 18:38:30,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 18:38:30,320 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 579 transitions. [2020-10-12 18:38:30,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-12 18:38:30,324 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:38:30,325 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] [2020-10-12 18:38:30,325 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:38:30,325 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:38:30,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:38:30,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1810547725, now seen corresponding path program 1 times [2020-10-12 18:38:30,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:38:30,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1303065724] [2020-10-12 18:38:30,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:38:30,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:30,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:31,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:31,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 18:38:31,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:31,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1203 [2020-10-12 18:38:31,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:31,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:38:31,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-12 18:38:31,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:38:31,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:38:32,104 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:38:32,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:38:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:32,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:32,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:32,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:38:32,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:32,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 18:38:32,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:32,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:38:32,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:32,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:38:32,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:38:32,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:38:32,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:32,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:32,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:32,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 18:38:32,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:32,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-12 18:38:32,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:32,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:32,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:32,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-12 18:38:32,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:38:32,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:38:32,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:32,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:32,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:32,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:38:32,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:32,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:38:32,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:32,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:32,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:38:32,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:38:32,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:32,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:38:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:32,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:32,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:32,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:32,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:32,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:38:32,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:32,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:38:32,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:38:32,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:38:32,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:32,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:38:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:32,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:32,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:32,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:32,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:32,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:38:32,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:32,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:38:32,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:38:32,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:38:32,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:32,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:38:32,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:32,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:32,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:32,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:32,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:32,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:38:32,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:32,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:38:32,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:38:32,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:38:32,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:32,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-12 18:38:32,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:32,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:32,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:32,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:32,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:32,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:38:32,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:32,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:38:32,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:38:32,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:38:32,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:32,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-12 18:38:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:32,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:32,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:32,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:32,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:32,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:38:32,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:32,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:38:32,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:38:32,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:38:32,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:32,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:38:32,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1303065724] [2020-10-12 18:38:32,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:38:32,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:38:32,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129543599] [2020-10-12 18:38:32,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:38:32,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:38:32,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:38:32,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:38:32,838 INFO L87 Difference]: Start difference. First operand 336 states and 579 transitions. Second operand 13 states. [2020-10-12 18:38:35,237 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:38:35,644 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2020-10-12 18:38:36,139 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:38:36,497 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-12 18:38:39,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:38:39,367 INFO L93 Difference]: Finished difference Result 506 states and 847 transitions. [2020-10-12 18:38:39,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 18:38:39,368 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 104 [2020-10-12 18:38:39,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:38:39,374 INFO L225 Difference]: With dead ends: 506 [2020-10-12 18:38:39,374 INFO L226 Difference]: Without dead ends: 368 [2020-10-12 18:38:39,377 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-12 18:38:39,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-10-12 18:38:39,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 336. [2020-10-12 18:38:39,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-10-12 18:38:39,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 537 transitions. [2020-10-12 18:38:39,431 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 537 transitions. Word has length 104 [2020-10-12 18:38:39,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:38:39,431 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 537 transitions. [2020-10-12 18:38:39,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:38:39,431 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 537 transitions. [2020-10-12 18:38:39,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-12 18:38:39,435 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:38:39,435 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:38:39,436 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:38:39,436 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:38:39,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:38:39,436 INFO L82 PathProgramCache]: Analyzing trace with hash -348312971, now seen corresponding path program 1 times [2020-10-12 18:38:39,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:38:39,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1675503911] [2020-10-12 18:38:39,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:38:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:39,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:39,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:40,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:41,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:41,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:44,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:44,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-12 18:38:44,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:38:44,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 18:38:44,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:44,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 18:38:44,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 18:38:44,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 18:38:44,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:38:44,993 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:38:44,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:38:44,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:45,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:45,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:45,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:38:45,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:45,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:38:45,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:45,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:38:45,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:45,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:38:45,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:45,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:38:45,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:45,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:45,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:45,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:38:45,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:45,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-10-12 18:38:45,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:45,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:38:45,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:45,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 18:38:45,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:45,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 18:38:45,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:45,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:45,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:45,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:38:45,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:45,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:38:45,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:45,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:45,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:45,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:38:45,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:45,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:38:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:45,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:45,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:45,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:45,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:45,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 18:38:45,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:45,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:45,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:38:45,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:38:45,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:38:45,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:38:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:45,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:45,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:45,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:45,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:45,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 18:38:45,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:45,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:45,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:38:45,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:38:45,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:38:45,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:38:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:45,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:45,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:45,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:45,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:45,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-12 18:38:45,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:45,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:38:45,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:38:45,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:38:45,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 18:38:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:45,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:45,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:45,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:45,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:45,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:38:45,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:45,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:45,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:38:45,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:38:45,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:45,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 18:38:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:45,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:45,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:45,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:45,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:45,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:38:45,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:45,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:45,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:38:45,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:38:45,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:45,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:38:45,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1675503911] [2020-10-12 18:38:45,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:38:45,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:38:45,912 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39683451] [2020-10-12 18:38:45,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:38:45,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:38:45,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:38:45,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:38:45,915 INFO L87 Difference]: Start difference. First operand 336 states and 537 transitions. Second operand 16 states. [2020-10-12 18:38:46,258 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:38:47,878 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:38:48,232 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:38:48,552 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:38:49,295 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:38:49,819 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:38:50,757 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:38:51,933 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:38:52,087 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:38:53,602 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:38:53,934 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2020-10-12 18:38:54,286 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-12 18:38:54,615 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:38:55,830 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:38:55,975 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:38:56,118 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:38:56,277 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:38:56,423 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:38:58,165 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:38:58,322 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:38:58,480 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:38:58,651 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:38:59,915 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:39:00,129 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:39:00,291 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:39:00,445 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:39:00,608 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:39:00,944 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:39:01,893 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:39:02,085 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:39:02,256 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:39:02,401 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:39:02,559 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:39:02,738 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:39:04,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:39:04,569 INFO L93 Difference]: Finished difference Result 1839 states and 2943 transitions. [2020-10-12 18:39:04,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2020-10-12 18:39:04,570 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 145 [2020-10-12 18:39:04,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:39:04,584 INFO L225 Difference]: With dead ends: 1839 [2020-10-12 18:39:04,585 INFO L226 Difference]: Without dead ends: 1707 [2020-10-12 18:39:04,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2000 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=1277, Invalid=4885, Unknown=0, NotChecked=0, Total=6162 [2020-10-12 18:39:04,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2020-10-12 18:39:04,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1367. [2020-10-12 18:39:04,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1367 states. [2020-10-12 18:39:04,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 2198 transitions. [2020-10-12 18:39:04,712 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 2198 transitions. Word has length 145 [2020-10-12 18:39:04,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:39:04,713 INFO L479 AbstractCegarLoop]: Abstraction has 1367 states and 2198 transitions. [2020-10-12 18:39:04,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:39:04,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 2198 transitions. [2020-10-12 18:39:04,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-12 18:39:04,717 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:39:04,718 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:39:04,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:39:04,718 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:39:04,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:39:04,719 INFO L82 PathProgramCache]: Analyzing trace with hash -893995987, now seen corresponding path program 1 times [2020-10-12 18:39:04,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:39:04,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [749672482] [2020-10-12 18:39:04,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:39:04,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:04,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:05,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:05,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:05,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:05,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:09,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:09,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-12 18:39:09,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:39:09,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-12 18:39:09,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:09,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:39:09,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 18:39:09,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 18:39:09,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:10,130 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:39:10,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:39:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:10,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:10,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:10,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:39:10,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:10,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:39:10,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:10,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:10,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:10,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:10,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:10,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:39:10,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:10,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:10,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:10,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:39:10,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:10,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-12 18:39:10,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:10,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:39:10,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:10,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 18:39:10,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:10,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 18:39:10,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:10,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:10,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:10,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:39:10,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:10,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:39:10,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:10,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:10,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:10,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:39:10,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:10,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:39:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:10,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:10,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:10,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:10,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:10,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:39:10,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:10,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:39:10,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:39:10,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:39:10,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:10,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:39:10,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:10,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:10,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:10,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:10,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:10,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:39:10,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:10,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:10,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:10,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:39:10,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:10,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:39:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:10,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:10,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:10,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:10,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:10,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:39:10,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:10,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:10,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:10,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:39:10,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:10,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 18:39:10,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:10,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:10,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:10,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:10,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:10,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:39:10,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:10,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:10,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:10,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:39:10,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:39:10,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 18:39:10,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:10,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:10,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:10,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:39:10,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:10,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:39:10,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:10,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:10,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-12 18:39:10,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:39:10,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:39:10,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:39:10,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [749672482] [2020-10-12 18:39:10,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:39:10,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 18:39:10,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598816863] [2020-10-12 18:39:10,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:39:10,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:39:10,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:39:10,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:39:10,646 INFO L87 Difference]: Start difference. First operand 1367 states and 2198 transitions. Second operand 11 states. [2020-10-12 18:39:10,962 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:39:12,751 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:39:16,407 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:39:16,732 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:39:17,718 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:39:17,920 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:39:20,144 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-12 18:39:20,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:39:20,843 INFO L93 Difference]: Finished difference Result 5369 states and 8552 transitions. [2020-10-12 18:39:20,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 18:39:20,845 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 146 [2020-10-12 18:39:20,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:39:20,874 INFO L225 Difference]: With dead ends: 5369 [2020-10-12 18:39:20,874 INFO L226 Difference]: Without dead ends: 4206 [2020-10-12 18:39:20,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 18:39:20,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4206 states. [2020-10-12 18:39:21,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4206 to 3389. [2020-10-12 18:39:21,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3389 states. [2020-10-12 18:39:21,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3389 states to 3389 states and 5437 transitions. [2020-10-12 18:39:21,121 INFO L78 Accepts]: Start accepts. Automaton has 3389 states and 5437 transitions. Word has length 146 [2020-10-12 18:39:21,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:39:21,123 INFO L479 AbstractCegarLoop]: Abstraction has 3389 states and 5437 transitions. [2020-10-12 18:39:21,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:39:21,123 INFO L276 IsEmpty]: Start isEmpty. Operand 3389 states and 5437 transitions. [2020-10-12 18:39:21,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-12 18:39:21,130 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:39:21,130 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:39:21,131 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:39:21,131 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:39:21,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:39:21,131 INFO L82 PathProgramCache]: Analyzing trace with hash -681985236, now seen corresponding path program 1 times [2020-10-12 18:39:21,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:39:21,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [684679146] [2020-10-12 18:39:21,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:39:21,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:21,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:21,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:21,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:22,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:22,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:26,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:26,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-12 18:39:26,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:39:26,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-12 18:39:26,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:26,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:39:26,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-12 18:39:26,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 18:39:26,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:26,644 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:39:26,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:39:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:26,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:26,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:26,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:39:26,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:26,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:39:26,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:26,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:26,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:26,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:26,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:39:26,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:39:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:26,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:26,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:26,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:39:26,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:26,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-12 18:39:26,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:26,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:39:26,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:26,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-12 18:39:26,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:39:26,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 18:39:26,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:26,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:26,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:26,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:39:26,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:26,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:39:26,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:26,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:26,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:26,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:39:26,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:39:27,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:39:27,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:27,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:27,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:27,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:27,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:27,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:39:27,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:27,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:27,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:27,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:39:27,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:39:27,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:39:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:27,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:27,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:27,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:27,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:27,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 18:39:27,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:27,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:39:27,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:39:27,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:39:27,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:39:27,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:39:27,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:27,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:27,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:27,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:27,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:27,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:39:27,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:27,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:27,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:27,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:39:27,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:39:27,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 18:39:27,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:27,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:27,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:27,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:27,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:27,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:39:27,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:27,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:27,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:27,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:39:27,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:27,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 18:39:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:27,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:27,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:27,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:39:27,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:27,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:39:27,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:27,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:27,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:39:27,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:39:27,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:39:27,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:39:27,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [684679146] [2020-10-12 18:39:27,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:39:27,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 18:39:27,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764940211] [2020-10-12 18:39:27,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:39:27,368 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:39:27,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:39:27,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:39:27,375 INFO L87 Difference]: Start difference. First operand 3389 states and 5437 transitions. Second operand 11 states. [2020-10-12 18:39:27,893 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:39:29,832 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:39:30,501 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:39:33,160 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:39:33,469 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:39:35,759 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:39:36,532 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:39:36,675 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-12 18:39:38,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:39:38,079 INFO L93 Difference]: Finished difference Result 15646 states and 24831 transitions. [2020-10-12 18:39:38,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 18:39:38,080 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 147 [2020-10-12 18:39:38,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:39:38,151 INFO L225 Difference]: With dead ends: 15646 [2020-10-12 18:39:38,151 INFO L226 Difference]: Without dead ends: 12461 [2020-10-12 18:39:38,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=335, Invalid=1147, Unknown=0, NotChecked=0, Total=1482 [2020-10-12 18:39:38,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12461 states. [2020-10-12 18:39:38,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12461 to 9960. [2020-10-12 18:39:38,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9960 states. [2020-10-12 18:39:38,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9960 states to 9960 states and 15924 transitions. [2020-10-12 18:39:38,920 INFO L78 Accepts]: Start accepts. Automaton has 9960 states and 15924 transitions. Word has length 147 [2020-10-12 18:39:38,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:39:38,921 INFO L479 AbstractCegarLoop]: Abstraction has 9960 states and 15924 transitions. [2020-10-12 18:39:38,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:39:38,921 INFO L276 IsEmpty]: Start isEmpty. Operand 9960 states and 15924 transitions. [2020-10-12 18:39:38,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-12 18:39:38,925 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:39:38,925 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:39:38,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:39:38,926 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:39:38,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:39:38,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1543695812, now seen corresponding path program 1 times [2020-10-12 18:39:38,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:39:38,928 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [101741868] [2020-10-12 18:39:38,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:39:38,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:39,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:39,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:39,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:39,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:40,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:44,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:44,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-12 18:39:44,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:39:44,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-12 18:39:44,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:44,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:39:44,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-12 18:39:44,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 18:39:44,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:44,420 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:39:44,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:39:44,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:44,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:44,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:44,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:39:44,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:44,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:39:44,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:44,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:44,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:44,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:44,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:39:44,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:39:44,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:44,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:44,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:44,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:39:44,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:44,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-12 18:39:44,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:44,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:39:44,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:44,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 18:39:44,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:44,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 18:39:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:44,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:44,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:44,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:39:44,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:44,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:39:44,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:44,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:44,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:44,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:39:44,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:44,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:39:44,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:44,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:44,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:44,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:44,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:44,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:39:44,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:44,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:44,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:44,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:39:44,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:44,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:39:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:44,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:44,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:44,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:44,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:44,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:39:44,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:44,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:44,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:44,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:39:44,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:44,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:39:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:44,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:44,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:44,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:44,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:44,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:39:44,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:44,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:39:44,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:39:44,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:39:44,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:39:44,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 18:39:44,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:44,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:44,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:44,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:39:44,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:44,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:39:44,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:44,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:44,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:44,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:39:44,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:39:44,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 18:39:44,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:44,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:44,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:44,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:39:44,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:44,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:39:44,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:44,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:44,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 18:39:44,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:39:44,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:44,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:39:44,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [101741868] [2020-10-12 18:39:44,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:39:44,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 18:39:44,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062157109] [2020-10-12 18:39:44,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:39:44,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:39:44,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:39:44,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:39:44,988 INFO L87 Difference]: Start difference. First operand 9960 states and 15924 transitions. Second operand 11 states. [2020-10-12 18:39:45,344 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:39:47,202 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:39:48,196 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:39:50,109 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:39:50,417 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:39:55,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:39:55,841 INFO L93 Difference]: Finished difference Result 54019 states and 85417 transitions. [2020-10-12 18:39:55,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 18:39:55,842 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 148 [2020-10-12 18:39:55,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:39:56,818 INFO L225 Difference]: With dead ends: 54019 [2020-10-12 18:39:56,818 INFO L226 Difference]: Without dead ends: 44263 [2020-10-12 18:39:56,857 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 18:39:56,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44263 states. [2020-10-12 18:39:58,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44263 to 35282. [2020-10-12 18:39:58,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35282 states. [2020-10-12 18:39:58,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35282 states to 35282 states and 56225 transitions. [2020-10-12 18:39:58,392 INFO L78 Accepts]: Start accepts. Automaton has 35282 states and 56225 transitions. Word has length 148 [2020-10-12 18:39:58,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:39:58,393 INFO L479 AbstractCegarLoop]: Abstraction has 35282 states and 56225 transitions. [2020-10-12 18:39:58,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:39:58,393 INFO L276 IsEmpty]: Start isEmpty. Operand 35282 states and 56225 transitions. [2020-10-12 18:39:58,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-12 18:39:58,397 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:39:58,398 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:39:58,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:39:58,398 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:39:58,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:39:58,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1768646627, now seen corresponding path program 1 times [2020-10-12 18:39:58,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:39:58,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [326135904] [2020-10-12 18:39:58,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:39:58,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:58,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:58,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:58,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:59,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:59,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:03,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:03,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-12 18:40:03,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:40:03,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-12 18:40:03,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:03,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:40:03,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-12 18:40:03,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 18:40:03,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:03,795 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:40:03,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:40:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:03,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:03,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:03,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:40:03,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:03,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:40:03,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:03,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:40:03,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:40:03,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:40:03,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:03,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:40:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:03,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:04,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:04,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:40:04,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:04,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-12 18:40:04,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:04,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:40:04,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:40:04,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-12 18:40:04,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:04,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 18:40:04,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:04,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:04,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:04,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:40:04,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:04,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:40:04,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:04,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:40:04,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:40:04,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:40:04,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:04,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:40:04,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:04,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:04,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:04,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:04,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:04,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:40:04,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:04,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:40:04,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:40:04,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:40:04,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:04,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:40:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:04,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:04,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:04,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:04,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:04,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:40:04,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:04,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:40:04,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:40:04,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:40:04,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:04,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:40:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:04,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:04,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:04,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:04,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:04,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:40:04,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:04,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:40:04,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:40:04,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:40:04,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:04,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 18:40:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:04,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:04,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:04,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:04,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:04,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:40:04,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:04,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:40:04,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:40:04,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:40:04,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:04,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 18:40:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:04,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:04,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:04,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:40:04,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:04,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:40:04,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:04,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:40:04,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:40:04,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:40:04,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:04,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:40:04,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [326135904] [2020-10-12 18:40:04,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:40:04,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 18:40:04,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308216156] [2020-10-12 18:40:04,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:40:04,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:40:04,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:40:04,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:40:04,324 INFO L87 Difference]: Start difference. First operand 35282 states and 56225 transitions. Second operand 11 states. [2020-10-12 18:40:04,653 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:40:06,475 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:40:08,687 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:40:09,000 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:40:11,243 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-12 18:40:11,701 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-12 18:40:11,953 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:40:13,289 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:40:14,005 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:40:14,302 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2020-10-12 18:40:14,663 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 117 [2020-10-12 18:40:18,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:40:18,833 INFO L93 Difference]: Finished difference Result 229374 states and 362427 transitions. [2020-10-12 18:40:18,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 18:40:18,834 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 149 [2020-10-12 18:40:18,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:40:19,414 INFO L225 Difference]: With dead ends: 229374 [2020-10-12 18:40:19,415 INFO L226 Difference]: Without dead ends: 194296 [2020-10-12 18:40:19,589 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=336, Invalid=1146, Unknown=0, NotChecked=0, Total=1482 [2020-10-12 18:40:19,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194296 states. [2020-10-12 18:40:27,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194296 to 154652. [2020-10-12 18:40:27,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154652 states. [2020-10-12 18:40:27,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154652 states to 154652 states and 246632 transitions. [2020-10-12 18:40:27,345 INFO L78 Accepts]: Start accepts. Automaton has 154652 states and 246632 transitions. Word has length 149 [2020-10-12 18:40:27,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:40:27,345 INFO L479 AbstractCegarLoop]: Abstraction has 154652 states and 246632 transitions. [2020-10-12 18:40:27,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:40:27,346 INFO L276 IsEmpty]: Start isEmpty. Operand 154652 states and 246632 transitions. [2020-10-12 18:40:27,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-12 18:40:27,353 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:40:27,353 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:40:27,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 18:40:27,353 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:40:27,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:40:27,354 INFO L82 PathProgramCache]: Analyzing trace with hash 815109716, now seen corresponding path program 1 times [2020-10-12 18:40:27,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:40:27,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1449702283] [2020-10-12 18:40:27,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:40:27,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:27,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:27,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:27,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:27,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:30,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:30,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:30,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:32,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:32,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-12 18:40:32,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:40:32,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-12 18:40:32,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:32,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:40:32,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-12 18:40:32,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 18:40:32,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:32,759 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:40:32,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:40:32,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:32,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:32,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:32,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:40:32,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:32,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:40:32,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:32,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:40:32,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:40:32,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:40:32,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:32,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:40:32,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:32,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:32,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:32,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:40:32,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:32,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-12 18:40:32,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:32,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:40:32,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:40:32,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 18:40:32,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:32,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 18:40:32,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:32,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:32,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:32,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:40:32,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:32,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:40:32,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:32,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:40:32,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:40:32,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:40:32,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:32,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:40:32,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:32,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:33,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:33,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:33,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:40:33,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:40:33,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 18:40:33,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:33,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:40:33,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:40:33,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:40:33,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:33,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:40:33,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:33,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:33,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:33,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:33,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:33,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:40:33,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:33,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:40:33,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:40:33,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:40:33,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:40:33,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 18:40:33,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:33,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:33,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:33,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:33,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:33,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:40:33,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:33,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:40:33,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:40:33,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:40:33,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:33,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-12 18:40:33,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:33,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:33,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:33,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:33,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:33,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:40:33,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:33,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:40:33,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:40:33,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:40:33,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:33,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-12 18:40:33,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:33,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:33,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:33,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:33,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:33,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:40:33,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:33,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:40:33,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:40:33,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:40:33,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:33,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:40:33,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1449702283] [2020-10-12 18:40:33,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:40:33,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-12 18:40:33,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575305392] [2020-10-12 18:40:33,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 18:40:33,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:40:33,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 18:40:33,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2020-10-12 18:40:33,350 INFO L87 Difference]: Start difference. First operand 154652 states and 246632 transitions. Second operand 17 states. [2020-10-12 18:40:33,702 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-12 18:40:35,754 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:40:36,094 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:40:36,421 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:40:36,651 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:40:37,389 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:40:37,865 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:40:38,147 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:40:38,683 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:40:38,827 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:40:40,163 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-12 18:40:40,551 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2020-10-12 18:40:40,911 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:40:42,076 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:40:42,229 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:40:42,382 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:40:42,943 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:40:43,192 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:40:43,716 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:40:43,894 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:40:44,063 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:40:44,957 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:40:45,428 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:40:45,590 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:40:45,761 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:40:45,928 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:40:46,373 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:40:47,046 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:40:47,354 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:40:48,120 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:40:51,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:40:51,852 INFO L93 Difference]: Finished difference Result 262327 states and 415131 transitions. [2020-10-12 18:40:51,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-10-12 18:40:51,853 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 151 [2020-10-12 18:40:51,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:40:52,234 INFO L225 Difference]: With dead ends: 262327 [2020-10-12 18:40:52,234 INFO L226 Difference]: Without dead ends: 199639 [2020-10-12 18:40:52,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1303 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=964, Invalid=3458, Unknown=0, NotChecked=0, Total=4422 [2020-10-12 18:40:52,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199639 states. [2020-10-12 18:40:57,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199639 to 148463. [2020-10-12 18:40:57,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148463 states. [2020-10-12 18:40:58,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148463 states to 148463 states and 236028 transitions. [2020-10-12 18:40:58,150 INFO L78 Accepts]: Start accepts. Automaton has 148463 states and 236028 transitions. Word has length 151 [2020-10-12 18:40:58,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:40:58,151 INFO L479 AbstractCegarLoop]: Abstraction has 148463 states and 236028 transitions. [2020-10-12 18:40:58,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 18:40:58,151 INFO L276 IsEmpty]: Start isEmpty. Operand 148463 states and 236028 transitions. [2020-10-12 18:40:58,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-12 18:40:58,156 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:40:58,156 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:40:58,157 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 18:40:58,157 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:40:58,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:40:58,157 INFO L82 PathProgramCache]: Analyzing trace with hash -789980940, now seen corresponding path program 1 times [2020-10-12 18:40:58,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:40:58,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1748163317] [2020-10-12 18:40:58,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:40:58,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:58,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:58,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:58,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:58,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:59,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:59,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:59,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:03,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:03,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-12 18:41:03,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:41:03,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5081 [2020-10-12 18:41:03,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:03,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:41:03,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 18:41:03,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-12 18:41:03,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:03,639 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:41:03,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:41:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:03,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:03,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:03,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:41:03,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:03,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:41:03,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:03,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:41:03,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:03,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:41:03,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:03,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:41:03,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:03,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:03,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:03,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:41:03,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:03,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-12 18:41:03,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:03,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:41:03,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:03,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-12 18:41:03,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:03,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 18:41:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:03,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:03,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:03,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:41:03,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:03,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:41:03,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:03,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:41:03,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:03,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:41:03,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:03,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:41:03,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:03,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:03,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:03,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:41:03,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:03,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:41:03,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:03,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:41:03,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:41:03,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:41:03,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:03,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:41:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:03,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:03,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:03,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:41:03,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:03,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:41:03,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:03,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:41:03,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:41:03,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:41:03,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:04,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:41:04,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:04,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:04,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:04,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:41:04,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:04,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:41:04,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:04,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:41:04,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:41:04,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:41:04,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:04,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 18:41:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:04,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:04,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:04,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:04,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:41:04,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:41:04,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 18:41:04,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:04,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:41:04,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:04,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:41:04,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:04,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-12 18:41:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:04,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:04,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:04,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:41:04,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:04,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:41:04,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:04,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:41:04,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:41:04,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:41:04,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:04,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:41:04,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1748163317] [2020-10-12 18:41:04,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:41:04,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:41:04,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988748805] [2020-10-12 18:41:04,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:41:04,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:41:04,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:41:04,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:41:04,169 INFO L87 Difference]: Start difference. First operand 148463 states and 236028 transitions. Second operand 16 states. [2020-10-12 18:41:04,875 WARN L193 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 245 [2020-10-12 18:41:07,299 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:41:07,621 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:41:07,952 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:41:08,292 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2020-10-12 18:41:08,857 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2020-10-12 18:41:09,537 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:41:09,998 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2020-10-12 18:41:10,832 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:41:11,407 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2020-10-12 18:41:11,693 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:41:12,484 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-12 18:41:14,258 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2020-10-12 18:41:14,608 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2020-10-12 18:41:15,312 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:41:16,186 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:41:16,341 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:41:16,780 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:41:16,991 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:41:17,559 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:41:17,912 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:41:18,077 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:41:18,592 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:41:19,491 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 121 [2020-10-12 18:41:19,675 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:41:20,108 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:41:20,703 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:41:20,890 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:41:21,076 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:41:25,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:41:25,792 INFO L93 Difference]: Finished difference Result 266972 states and 421478 transitions. [2020-10-12 18:41:25,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-10-12 18:41:25,792 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 151 [2020-10-12 18:41:25,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:41:26,193 INFO L225 Difference]: With dead ends: 266972 [2020-10-12 18:41:26,193 INFO L226 Difference]: Without dead ends: 196646 [2020-10-12 18:41:26,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1425 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=1031, Invalid=3939, Unknown=0, NotChecked=0, Total=4970 [2020-10-12 18:41:26,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196646 states. [2020-10-12 18:41:35,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196646 to 155460. [2020-10-12 18:41:35,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155460 states. [2020-10-12 18:41:35,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155460 states to 155460 states and 247846 transitions. [2020-10-12 18:41:35,745 INFO L78 Accepts]: Start accepts. Automaton has 155460 states and 247846 transitions. Word has length 151 [2020-10-12 18:41:35,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:41:35,745 INFO L479 AbstractCegarLoop]: Abstraction has 155460 states and 247846 transitions. [2020-10-12 18:41:35,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:41:35,746 INFO L276 IsEmpty]: Start isEmpty. Operand 155460 states and 247846 transitions. [2020-10-12 18:41:35,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-12 18:41:35,751 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:41:35,751 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:41:35,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 18:41:35,751 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:41:35,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:41:35,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1644470309, now seen corresponding path program 1 times [2020-10-12 18:41:35,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:41:35,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [709648500] [2020-10-12 18:41:35,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:41:35,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:35,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:35,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:35,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:36,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:37,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:40,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:40,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-12 18:41:40,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:41:40,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 18:41:40,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:40,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:41:40,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-12 18:41:40,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 18:41:40,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:41,163 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:41:41,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:41:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:41,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:41,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:41,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:41:41,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:41,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:41:41,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:41,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:41:41,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:41,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:41:41,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:41,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:41:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:41,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:41,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:41,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:41:41,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:41,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-12 18:41:41,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:41,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:41:41,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:41,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 18:41:41,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:41,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 18:41:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:41,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:41,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:41,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:41:41,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:41,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:41:41,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:41,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:41:41,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:41,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:41:41,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:41,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:41:41,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:41,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:41,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:41,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:41:41,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:41,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:41:41,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:41,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:41:41,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:41,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:41:41,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:41,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:41:41,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:41,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:41,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:41,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:41:41,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:41,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:41:41,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:41,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:41:41,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:41,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:41:41,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:41,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:41:41,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:41,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:41,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:41,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:41:41,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:41,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:41:41,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:41,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:41:41,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:41,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:41:41,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:41,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 18:41:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:41,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:41,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:41,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:41:41,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:41,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:41:41,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:41,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:41:41,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:41:41,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:41:41,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:41,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 18:41:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:41,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:41,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:41,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:41:41,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:41,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:41:41,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:41,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:41:41,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:41:41,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:41:41,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:41,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:41:41,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [709648500] [2020-10-12 18:41:41,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:41:41,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 18:41:41,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124283098] [2020-10-12 18:41:41,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:41:41,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:41:41,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:41:41,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:41:41,564 INFO L87 Difference]: Start difference. First operand 155460 states and 247846 transitions. Second operand 10 states. [2020-10-12 18:41:41,926 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:41:43,691 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:41:44,063 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:41:44,410 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:41:44,969 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:41:47,369 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:41:47,719 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-12 18:41:47,914 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 120