/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 SingleStatement --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=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:30:13,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:30:13,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:30:13,817 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:30:13,817 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:30:13,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:30:13,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:30:13,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:30:13,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:30:13,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:30:13,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:30:13,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:30:13,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:30:13,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:30:13,829 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:30:13,830 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:30:13,831 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:30:13,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:30:13,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:30:13,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:30:13,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:30:13,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:30:13,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:30:13,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:30:13,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:30:13,844 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:30:13,844 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:30:13,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:30:13,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:30:13,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:30:13,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:30:13,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:30:13,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:30:13,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:30:13,850 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:30:13,850 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:30:13,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:30:13,851 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:30:13,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:30:13,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:30:13,853 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:30:13,854 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 [2020-09-24 22:30:13,881 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:30:13,881 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:30:13,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:30:13,882 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:30:13,883 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:30:13,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:30:13,883 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:30:13,883 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:30:13,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:30:13,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:30:13,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:30:13,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:30:13,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:30:13,884 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:30:13,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:30:13,885 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:30:13,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:30:13,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:30:13,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:30:13,886 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:30:13,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:30:13,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:30:13,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:30:13,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:30:13,887 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:30:13,887 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:30:13,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:30:13,887 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:30:13,888 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:30:13,888 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 -> SingleStatement 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=HIGHLEXORDER;log-additional-information=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=HIGHLEXORDER;log-additional-information=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=HIGHLEXORDER;log-additional-information=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=HIGHLEXORDER;log-additional-information=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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:30:14,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:30:14,378 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:30:14,383 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:30:14,385 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:30:14,385 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:30:14,386 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-09-24 22:30:14,479 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b6ba324e7/3b7d261bcd6f40b6afedadb48432ad2f/FLAG52d62249e [2020-09-24 22:30:15,141 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:30:15,142 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-09-24 22:30:15,160 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b6ba324e7/3b7d261bcd6f40b6afedadb48432ad2f/FLAG52d62249e [2020-09-24 22:30:15,388 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b6ba324e7/3b7d261bcd6f40b6afedadb48432ad2f [2020-09-24 22:30:15,401 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:30:15,407 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:30:15,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:30:15,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:30:15,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:30:15,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:30:15" (1/1) ... [2020-09-24 22:30:15,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26d3ce57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:30:15, skipping insertion in model container [2020-09-24 22:30:15,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:30:15" (1/1) ... [2020-09-24 22:30:15,427 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:30:15,480 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:30:15,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:30:16,012 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:30:16,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:30:16,152 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:30:16,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:30:16 WrapperNode [2020-09-24 22:30:16,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:30:16,154 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:30:16,154 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:30:16,155 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:30:16,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:30:16" (1/1) ... [2020-09-24 22:30:16,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:30:16" (1/1) ... [2020-09-24 22:30:16,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:30:16" (1/1) ... [2020-09-24 22:30:16,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:30:16" (1/1) ... [2020-09-24 22:30:16,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:30:16" (1/1) ... [2020-09-24 22:30:16,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:30:16" (1/1) ... [2020-09-24 22:30:16,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:30:16" (1/1) ... [2020-09-24 22:30:16,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:30:16,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:30:16,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:30:16,250 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:30:16,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:30:16" (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 [2020-09-24 22:30:16,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:30:16,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:30:16,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:30:16,330 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:30:16,331 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:30:16,331 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:30:16,331 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:30:16,331 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:30:16,331 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 22:30:16,332 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:30:16,332 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 22:30:16,332 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:30:16,332 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 22:30:16,332 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:30:16,332 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:30:16,333 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:30:16,333 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:30:16,333 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:30:16,333 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 22:30:16,334 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 22:30:16,334 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 22:30:16,334 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 22:30:16,334 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:30:16,334 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:30:16,334 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:30:16,335 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:30:16,335 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:30:16,335 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:30:16,335 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:30:16,335 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 22:30:16,335 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 22:30:16,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:30:16,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:30:16,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:30:16,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:30:16,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:30:16,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:30:16,337 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:30:16,337 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:30:16,337 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:30:16,337 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:30:16,337 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:30:16,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:30:16,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 22:30:16,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:30:16,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:30:16,338 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:30:16,338 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:30:16,339 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:30:16,339 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:30:16,339 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:30:16,339 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:30:16,339 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:30:16,339 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:30:16,340 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 22:30:16,340 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 22:30:16,340 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:30:16,340 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:30:16,340 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:30:16,340 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:30:16,341 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:30:16,341 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 22:30:16,341 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 22:30:16,341 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 22:30:16,341 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:30:16,341 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 22:30:16,342 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 22:30:16,342 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:30:16,342 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 22:30:16,342 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 22:30:16,342 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:30:16,342 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 22:30:16,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:30:16,343 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:30:16,343 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:30:16,343 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:30:16,343 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:30:16,343 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:30:16,344 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:30:16,344 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:30:16,344 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:30:16,344 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:30:16,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:30:16,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:30:16,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:30:16,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:30:16,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:30:16,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:30:16,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:30:16,345 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:30:16,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:30:16,346 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:30:16,346 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:30:16,346 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:30:16,346 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:30:16,347 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:30:16,347 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:30:16,347 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:30:16,347 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:30:16,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:30:16,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:30:16,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:30:17,628 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:30:17,628 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:30:17,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:30:17 BoogieIcfgContainer [2020-09-24 22:30:17,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:30:17,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:30:17,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:30:17,643 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:30:17,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:30:15" (1/3) ... [2020-09-24 22:30:17,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cfa78a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:30:17, skipping insertion in model container [2020-09-24 22:30:17,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:30:16" (2/3) ... [2020-09-24 22:30:17,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cfa78a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:30:17, skipping insertion in model container [2020-09-24 22:30:17,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:30:17" (3/3) ... [2020-09-24 22:30:17,648 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2020-09-24 22:30:17,662 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:30:17,675 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:30:17,700 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:30:17,737 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:30:17,737 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:30:17,737 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:30:17,737 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:30:17,738 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:30:17,738 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:30:17,738 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:30:17,738 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:30:17,771 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-24 22:30:17,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 22:30:17,792 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:30:17,794 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, 1, 1] [2020-09-24 22:30:17,794 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:30:17,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:30:17,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1409886201, now seen corresponding path program 1 times [2020-09-24 22:30:17,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:30:17,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1472770160] [2020-09-24 22:30:17,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:30:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:18,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:18,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:19,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:23,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:23,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 22:30:23,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:30:23,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-24 22:30:23,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:23,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:23,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 22:30:23,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:23,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 22:30:23,597 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:30:23,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:30:23,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:23,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:23,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:23,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:30:23,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:23,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-24 22:30:23,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:23,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:23,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:23,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:23,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:23,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:30:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:23,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:23,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:23,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:23,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:23,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:30:23,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:23,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:23,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:23,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:23,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:23,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:30:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:23,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:23,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:23,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:23,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:23,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:23,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:23,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:23,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:23,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:23,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:23,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:30:23,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:23,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:23,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:23,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:23,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:23,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:30:23,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:23,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:23,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:23,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:23,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:23,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:30:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:23,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:23,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:23,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:23,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:23,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:23,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:23,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:23,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:23,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:23,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:23,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 22:30:23,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:23,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:23,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:23,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:23,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:23,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:23,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:23,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:23,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:30:23,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:23,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:23,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:30:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:23,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:23,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:23,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:23,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:23,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:30:23,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:23,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:23,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:30:23,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:23,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:23,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 22:30:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:23,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:23,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:23,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:23,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:23,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:30:23,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:23,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:23,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:30:23,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:23,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:24,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:30:24,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1472770160] [2020-09-24 22:30:24,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:30:24,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:30:24,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342319537] [2020-09-24 22:30:24,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:30:24,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:30:24,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:30:24,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:30:24,088 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 3 states. [2020-09-24 22:30:25,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:30:25,944 INFO L93 Difference]: Finished difference Result 596 states and 710 transitions. [2020-09-24 22:30:25,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:30:25,946 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 22:30:25,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:30:25,969 INFO L225 Difference]: With dead ends: 596 [2020-09-24 22:30:25,969 INFO L226 Difference]: Without dead ends: 359 [2020-09-24 22:30:25,976 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:30:26,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2020-09-24 22:30:26,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 311. [2020-09-24 22:30:26,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2020-09-24 22:30:26,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 343 transitions. [2020-09-24 22:30:26,110 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 343 transitions. Word has length 153 [2020-09-24 22:30:26,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:30:26,111 INFO L479 AbstractCegarLoop]: Abstraction has 311 states and 343 transitions. [2020-09-24 22:30:26,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:30:26,111 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 343 transitions. [2020-09-24 22:30:26,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 22:30:26,117 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:30:26,117 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, 1, 1, 1] [2020-09-24 22:30:26,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:30:26,117 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:30:26,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:30:26,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1484490913, now seen corresponding path program 1 times [2020-09-24 22:30:26,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:30:26,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [287787913] [2020-09-24 22:30:26,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:30:26,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:26,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:26,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:27,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:31,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:31,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 22:30:31,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:30:31,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 22:30:31,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:31,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:31,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 22:30:31,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:30:31,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:31,506 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:30:31,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:30:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:31,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:31,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:31,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:30:31,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:31,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 22:30:31,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:31,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:31,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:31,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:31,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:31,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:30:31,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:31,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:31,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:31,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:31,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:31,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:31,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:31,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:31,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:31,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:31,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:31,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:30:31,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:31,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:31,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:31,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:31,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:31,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:30:31,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:31,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:31,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:31,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:31,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:31,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:30:31,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:31,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:31,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:31,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:31,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:31,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:30:31,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:31,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:31,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:31,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:31,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:31,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:30:31,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:31,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:31,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:31,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:31,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:31,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:30:31,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:31,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:31,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:31,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:31,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:31,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 22:30:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:31,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:31,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:31,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:31,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:31,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:30:31,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:31,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:31,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:30:31,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:31,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:31,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 22:30:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:31,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:31,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:31,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:31,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:31,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:30:31,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:31,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:31,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:30:31,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:31,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:31,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 22:30:31,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:31,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:31,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:31,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:31,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:31,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:30:31,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:31,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:31,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:30:31,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:31,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:31,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:30:31,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [287787913] [2020-09-24 22:30:31,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:30:31,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 22:30:31,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814352393] [2020-09-24 22:30:31,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 22:30:31,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:30:31,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 22:30:31,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 22:30:31,741 INFO L87 Difference]: Start difference. First operand 311 states and 343 transitions. Second operand 4 states. [2020-09-24 22:30:32,392 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:30:33,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:30:33,788 INFO L93 Difference]: Finished difference Result 503 states and 573 transitions. [2020-09-24 22:30:33,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 22:30:33,792 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 22:30:33,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:30:33,796 INFO L225 Difference]: With dead ends: 503 [2020-09-24 22:30:33,797 INFO L226 Difference]: Without dead ends: 342 [2020-09-24 22:30:33,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:30:33,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-09-24 22:30:33,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 301. [2020-09-24 22:30:33,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-09-24 22:30:33,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 330 transitions. [2020-09-24 22:30:33,851 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 330 transitions. Word has length 154 [2020-09-24 22:30:33,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:30:33,852 INFO L479 AbstractCegarLoop]: Abstraction has 301 states and 330 transitions. [2020-09-24 22:30:33,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 22:30:33,852 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 330 transitions. [2020-09-24 22:30:33,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 22:30:33,854 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:30:33,855 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:30:33,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:30:33,855 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:30:33,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:30:33,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1631977851, now seen corresponding path program 1 times [2020-09-24 22:30:33,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:30:33,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1444421567] [2020-09-24 22:30:33,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:30:33,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:33,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:34,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:36,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:36,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 22:30:36,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:30:36,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2734 [2020-09-24 22:30:36,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:36,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:36,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 22:30:36,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:30:36,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:36,957 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:30:36,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:30:36,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:36,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:37,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:37,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:30:37,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:37,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 22:30:37,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:37,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:37,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:37,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:37,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 38 [2020-09-24 22:30:37,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:30:37,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:37,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:37,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:37,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:37,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:37,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:30:37,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:37,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:37,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:37,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:37,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:37,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:30:37,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:37,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:37,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:37,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:37,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:37,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:30:37,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:37,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:37,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:37,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:37,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:37,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:30:37,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:37,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:37,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:37,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:37,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:37,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:37,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:37,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:37,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:37,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:37,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:37,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:30:37,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:37,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:37,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:37,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:37,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:37,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:30:37,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:37,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:37,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:37,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:37,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:37,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 22:30:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:37,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:37,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:37,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:30:37,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:37,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:37,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:37,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:37,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:37,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 22:30:37,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:37,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 22:30:37,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:37,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:37,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:37,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:37,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:37,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:30:37,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:37,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:37,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:30:37,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:37,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:37,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 22:30:37,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:37,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:37,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:37,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:37,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:37,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:30:37,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:37,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:37,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:30:37,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:37,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:37,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 22:30:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:37,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:37,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:37,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:37,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:37,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:30:37,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:37,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:37,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:30:37,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:37,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:37,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:30:37,219 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1444421567] [2020-09-24 22:30:37,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:30:37,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 22:30:37,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582769460] [2020-09-24 22:30:37,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 22:30:37,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:30:37,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 22:30:37,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:30:37,221 INFO L87 Difference]: Start difference. First operand 301 states and 330 transitions. Second operand 5 states. [2020-09-24 22:30:37,717 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:30:40,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:30:40,315 INFO L93 Difference]: Finished difference Result 761 states and 887 transitions. [2020-09-24 22:30:40,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 22:30:40,316 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-24 22:30:40,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:30:40,322 INFO L225 Difference]: With dead ends: 761 [2020-09-24 22:30:40,323 INFO L226 Difference]: Without dead ends: 570 [2020-09-24 22:30:40,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:30:40,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-09-24 22:30:40,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 482. [2020-09-24 22:30:40,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-09-24 22:30:40,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 541 transitions. [2020-09-24 22:30:40,405 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 541 transitions. Word has length 167 [2020-09-24 22:30:40,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:30:40,406 INFO L479 AbstractCegarLoop]: Abstraction has 482 states and 541 transitions. [2020-09-24 22:30:40,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 22:30:40,406 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 541 transitions. [2020-09-24 22:30:40,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 22:30:40,409 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:30:40,409 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:30:40,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:30:40,410 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:30:40,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:30:40,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1733471064, now seen corresponding path program 1 times [2020-09-24 22:30:40,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:30:40,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1621714048] [2020-09-24 22:30:40,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:30:40,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:40,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:42,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:42,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 22:30:42,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:42,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1661 [2020-09-24 22:30:42,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:42,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 22:30:42,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 22:30:42,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-24 22:30:42,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:42,460 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:30:42,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:30:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:42,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:42,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:42,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:30:42,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:42,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-09-24 22:30:42,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:42,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:42,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:42,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 22:30:42,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:42,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:30:42,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:42,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:42,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:42,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:42,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:42,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:42,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:42,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:42,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:42,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:30:42,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:42,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:30:42,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:42,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:42,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:42,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:42,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:42,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:42,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:42,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:42,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:42,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:30:42,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:42,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:30:42,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:42,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:42,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:42,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:42,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:42,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:30:42,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:42,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:42,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:42,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:30:42,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:42,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:30:42,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:42,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:42,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:42,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:42,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:42,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:42,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:42,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:42,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:42,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:30:42,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:42,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 22:30:42,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:42,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:42,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:42,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:30:42,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:42,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:30:42,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:42,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:42,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:42,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:30:42,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:42,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 22:30:42,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:42,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:42,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:42,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:42,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:42,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:30:42,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:42,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:42,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:42,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:30:42,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:42,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 22:30:42,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:42,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:42,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:42,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:42,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:42,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:30:42,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:42,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:30:42,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:42,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:30:42,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:42,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 22:30:42,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:42,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:42,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:42,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:42,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:42,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:42,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:42,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:42,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:30:42,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:42,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:30:42,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:30:42,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1621714048] [2020-09-24 22:30:42,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:30:42,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:30:42,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255970727] [2020-09-24 22:30:42,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:30:42,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:30:42,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:30:42,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:30:42,995 INFO L87 Difference]: Start difference. First operand 482 states and 541 transitions. Second operand 9 states. [2020-09-24 22:30:43,710 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:30:46,227 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:30:46,932 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 22:30:47,375 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:30:47,773 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:30:48,097 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:30:48,429 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:30:48,756 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:30:50,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:30:50,243 INFO L93 Difference]: Finished difference Result 1328 states and 1597 transitions. [2020-09-24 22:30:50,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 22:30:50,244 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-24 22:30:50,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:30:50,252 INFO L225 Difference]: With dead ends: 1328 [2020-09-24 22:30:50,252 INFO L226 Difference]: Without dead ends: 956 [2020-09-24 22:30:50,254 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 22:30:50,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2020-09-24 22:30:50,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 849. [2020-09-24 22:30:50,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 849 states. [2020-09-24 22:30:50,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 975 transitions. [2020-09-24 22:30:50,387 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 975 transitions. Word has length 172 [2020-09-24 22:30:50,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:30:50,387 INFO L479 AbstractCegarLoop]: Abstraction has 849 states and 975 transitions. [2020-09-24 22:30:50,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:30:50,388 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 975 transitions. [2020-09-24 22:30:50,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 22:30:50,393 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:30:50,393 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:30:50,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:30:50,394 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:30:50,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:30:50,394 INFO L82 PathProgramCache]: Analyzing trace with hash 468409622, now seen corresponding path program 1 times [2020-09-24 22:30:50,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:30:50,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253941312] [2020-09-24 22:30:50,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:30:50,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:50,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:50,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:51,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:53,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:55,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:55,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-24 22:30:55,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:30:55,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-24 22:30:55,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:55,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:30:55,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-24 22:30:55,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 22:30:55,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:55,807 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:30:55,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:30:55,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:55,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:55,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:55,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:30:55,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:55,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 22:30:55,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:55,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:55,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:55,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:55,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:55,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:30:55,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:55,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:55,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:55,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:55,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:55,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:30:55,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:55,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:55,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:55,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:55,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:55,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:30:55,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:55,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:55,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:55,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:55,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:55,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:30:55,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:55,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:55,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:55,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:55,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:55,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:30:55,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:55,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:55,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:55,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:55,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:55,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:30:55,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:55,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:55,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:55,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:55,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:55,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:30:55,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:55,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:55,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:55,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:55,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:55,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:30:55,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:55,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:55,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:55,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:55,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:56,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 22:30:56,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:56,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:56,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:56,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:30:56,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:56,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:30:56,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:56,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:56,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:56,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:56,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:56,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 22:30:56,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:56,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:56,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:56,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:30:56,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:56,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:30:56,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:56,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:56,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:56,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:30:56,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:56,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 22:30:56,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:56,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:56,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:56,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:56,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:56,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:56,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:56,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:56,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:56,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:30:56,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:56,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 22:30:56,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:56,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:56,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:56,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:56,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:56,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:56,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:56,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:56,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:56,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:30:56,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:56,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-24 22:30:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:56,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:56,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:56,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:56,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:56,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 22:30:56,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:56,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:30:56,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:56,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:30:56,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:56,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:30:56,251 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1253941312] [2020-09-24 22:30:56,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:30:56,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 22:30:56,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106801873] [2020-09-24 22:30:56,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:30:56,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:30:56,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:30:56,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:30:56,256 INFO L87 Difference]: Start difference. First operand 849 states and 975 transitions. Second operand 10 states. [2020-09-24 22:30:57,515 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-09-24 22:30:57,814 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:30:58,846 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-09-24 22:31:00,439 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 22:31:00,795 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 22:31:01,310 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:31:01,726 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:31:02,101 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:31:02,399 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188