/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:58:13,272 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:58:13,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:58:13,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:58:13,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:58:13,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:58:13,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:58:13,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:58:13,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:58:13,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:58:13,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:58:13,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:58:13,348 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:58:13,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:58:13,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:58:13,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:58:13,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:58:13,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:58:13,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:58:13,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:58:13,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:58:13,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:58:13,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:58:13,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:58:13,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:58:13,370 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:58:13,370 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:58:13,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:58:13,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:58:13,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:58:13,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:58:13,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:58:13,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:58:13,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:58:13,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:58:13,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:58:13,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:58:13,378 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:58:13,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:58:13,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:58:13,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:58:13,380 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 16:58:13,408 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:58:13,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:58:13,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:58:13,411 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:58:13,411 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:58:13,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:58:13,411 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:58:13,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:58:13,412 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:58:13,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:58:13,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:58:13,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:58:13,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:58:13,413 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:58:13,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:58:13,413 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:58:13,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:58:13,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:58:13,414 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:58:13,414 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:58:13,414 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:58:13,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:58:13,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:58:13,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:58:13,415 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:58:13,415 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:58:13,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:58:13,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:58:13,416 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:58:13,416 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;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;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;log-additional-information=true; [2020-09-24 16:58:13,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:58:13,910 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:58:13,914 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:58:13,916 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:58:13,917 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:58:13,918 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product43.cil.c [2020-09-24 16:58:14,018 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ef1f36ad2/1291475875c64b28b01fdcff01916d1c/FLAG3280c8d3f [2020-09-24 16:58:14,640 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:58:14,641 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product43.cil.c [2020-09-24 16:58:14,664 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ef1f36ad2/1291475875c64b28b01fdcff01916d1c/FLAG3280c8d3f [2020-09-24 16:58:14,905 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ef1f36ad2/1291475875c64b28b01fdcff01916d1c [2020-09-24 16:58:14,919 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:58:14,924 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:58:14,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:58:14,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:58:14,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:58:14,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:58:14" (1/1) ... [2020-09-24 16:58:14,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:14, skipping insertion in model container [2020-09-24 16:58:14,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:58:14" (1/1) ... [2020-09-24 16:58:14,951 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:58:15,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:58:15,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:58:15,454 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:58:15,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:58:15,700 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:58:15,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:15 WrapperNode [2020-09-24 16:58:15,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:58:15,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:58:15,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:58:15,702 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:58:15,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:15" (1/1) ... [2020-09-24 16:58:15,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:15" (1/1) ... [2020-09-24 16:58:15,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:15" (1/1) ... [2020-09-24 16:58:15,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:15" (1/1) ... [2020-09-24 16:58:15,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:15" (1/1) ... [2020-09-24 16:58:15,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:15" (1/1) ... [2020-09-24 16:58:15,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:15" (1/1) ... [2020-09-24 16:58:15,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:58:15,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:58:15,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:58:15,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:58:15,840 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:15" (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 16:58:15,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:58:15,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:58:15,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:58:15,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:58:15,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:58:15,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:58:15,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:58:15,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:58:15,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:58:15,938 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:58:15,939 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:58:15,939 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:58:15,939 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:58:15,939 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:58:15,939 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:58:15,941 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:58:15,941 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:58:15,942 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:58:15,942 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 16:58:15,942 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:58:15,942 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:58:15,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:58:15,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:58:15,943 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:58:15,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 16:58:15,944 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 16:58:15,945 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:58:15,945 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:58:15,945 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:58:15,945 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:58:15,945 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:58:15,945 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:58:15,945 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 16:58:15,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 16:58:15,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 16:58:15,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 16:58:15,946 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:58:15,946 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:58:15,946 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:58:15,947 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:58:15,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:58:15,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:58:15,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:58:15,947 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:58:15,947 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:58:15,947 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:58:15,948 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:58:15,948 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:58:15,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:58:15,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:58:15,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:58:15,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:58:15,949 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:58:15,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:58:15,949 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:58:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:58:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:58:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:58:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:58:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:58:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:58:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:58:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:58:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:58:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:58:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:58:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:58:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:58:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 16:58:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:58:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:58:15,953 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:58:15,954 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:58:15,954 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:58:15,955 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:58:15,955 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 16:58:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:58:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:58:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:58:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 16:58:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:58:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:58:15,957 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:58:15,957 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 16:58:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 16:58:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:58:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:58:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 16:58:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 16:58:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:58:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:58:15,959 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:58:15,959 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:58:15,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:58:15,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:58:15,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:58:17,144 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:58:17,144 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:58:17,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:58:17 BoogieIcfgContainer [2020-09-24 16:58:17,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:58:17,154 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:58:17,154 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:58:17,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:58:17,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:58:14" (1/3) ... [2020-09-24 16:58:17,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cf5654d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:58:17, skipping insertion in model container [2020-09-24 16:58:17,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:15" (2/3) ... [2020-09-24 16:58:17,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cf5654d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:58:17, skipping insertion in model container [2020-09-24 16:58:17,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:58:17" (3/3) ... [2020-09-24 16:58:17,163 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product43.cil.c [2020-09-24 16:58:17,175 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:58:17,187 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:58:17,211 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:58:17,245 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:58:17,246 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:58:17,246 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:58:17,246 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:58:17,246 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:58:17,246 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:58:17,247 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:58:17,247 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:58:17,277 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-09-24 16:58:17,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 16:58:17,296 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:58:17,298 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:58:17,298 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:58:17,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:58:17,307 INFO L82 PathProgramCache]: Analyzing trace with hash 298100152, now seen corresponding path program 1 times [2020-09-24 16:58:17,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:58:17,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358099862] [2020-09-24 16:58:17,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:58:17,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:17,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:18,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:19,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:19,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:22,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:31,322 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:31,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 16:58:31,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:58:31,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13634 [2020-09-24 16:58:31,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:31,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 16:58:31,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 16:58:31,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-09-24 16:58:31,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-09-24 16:58:31,807 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:58:31,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:58:31,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:31,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:32,087 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:32,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:58:32,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:32,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-24 16:58:32,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:32,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:32,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:32,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 16:58:32,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:32,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:58:32,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:32,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:32,167 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:32,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:32,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:32,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:58:32,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:32,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:32,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:32,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:58:32,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:32,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:58:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:32,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:32,176 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:32,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:32,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:32,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:58:32,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:32,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:32,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:32,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:58:32,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 16:58:32,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:58:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:32,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:32,200 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:32,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:32,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:32,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:58:32,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:32,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:32,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:32,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:58:32,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:32,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:58:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:32,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:32,209 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:32,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:32,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:32,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:58:32,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:32,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:32,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:32,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:58:32,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:32,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:58:32,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:32,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:32,231 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:32,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:58:32,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:32,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:58:32,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:32,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:32,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:32,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:58:32,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:32,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 16:58:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:32,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:32,247 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:32,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:58:32,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:32,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:58:32,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:32,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:32,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:32,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 16:58:32,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:32,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:58:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:32,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:32,256 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:32,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:32,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:32,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:32,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:32,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:32,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:32,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:32,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:32,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 16:58:32,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:32,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:32,266 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:32,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:32,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:32,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:58:32,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:32,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:32,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:32,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:58:32,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:32,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 16:58:32,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:32,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:32,280 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:32,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:32,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:32,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:58:32,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:32,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:58:32,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:32,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:58:32,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:32,345 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 16:58:32,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358099862] [2020-09-24 16:58:32,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:58:32,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:58:32,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416626504] [2020-09-24 16:58:32,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:58:32,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:58:32,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:58:32,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:58:32,381 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 9 states. [2020-09-24 16:58:33,030 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:58:33,804 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:58:34,108 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:58:35,764 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:58:36,026 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:58:36,385 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:58:37,014 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:58:37,333 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:58:37,647 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:58:38,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:58:38,036 INFO L93 Difference]: Finished difference Result 607 states and 732 transitions. [2020-09-24 16:58:38,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 16:58:38,038 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-24 16:58:38,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:58:38,060 INFO L225 Difference]: With dead ends: 607 [2020-09-24 16:58:38,060 INFO L226 Difference]: Without dead ends: 409 [2020-09-24 16:58:38,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 16:58:38,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2020-09-24 16:58:38,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 360. [2020-09-24 16:58:38,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-09-24 16:58:38,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 402 transitions. [2020-09-24 16:58:38,196 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 402 transitions. Word has length 160 [2020-09-24 16:58:38,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:58:38,197 INFO L479 AbstractCegarLoop]: Abstraction has 360 states and 402 transitions. [2020-09-24 16:58:38,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:58:38,198 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 402 transitions. [2020-09-24 16:58:38,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-24 16:58:38,203 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:58:38,203 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:38,204 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:58:38,204 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:58:38,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:58:38,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1593408735, now seen corresponding path program 1 times [2020-09-24 16:58:38,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:58:38,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1561562222] [2020-09-24 16:58:38,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:58:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:38,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:38,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:40,297 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:40,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-09-24 16:58:40,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:58:40,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2037 [2020-09-24 16:58:40,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:40,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:58:40,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 188 [2020-09-24 16:58:40,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:58:40,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:40,583 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:58:40,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:58:40,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:40,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:40,704 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:40,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:58:40,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:40,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 16:58:40,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:40,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:40,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:40,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:40,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:40,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:58:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:40,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:40,742 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:40,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:40,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:40,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:58:40,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:40,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:40,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:40,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:40,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:40,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:58:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:40,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:40,748 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:40,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:40,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:40,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:40,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:40,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:40,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:40,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:40,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:40,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:58:40,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:40,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:40,756 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:40,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:40,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:40,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:58:40,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:40,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:40,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:40,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:40,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:40,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:58:40,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:40,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:40,763 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:40,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:40,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:40,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:40,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:40,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:40,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:40,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:40,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:40,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:58:40,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:40,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:40,777 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:40,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:58:40,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:40,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:40,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:40,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:40,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:40,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:40,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:40,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 16:58:40,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:40,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:40,790 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:40,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:58:40,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:40,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:58:40,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:40,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:40,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:40,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:40,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:40,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:58:40,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:40,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:40,802 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:40,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:40,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:40,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:40,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:40,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:40,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:40,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:40,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:40,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 16:58:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:40,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:40,927 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:40,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 16:58:40,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:40,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-24 16:58:40,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:40,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:58:40,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 16:58:40,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:58:40,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:40,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:58:40,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:40,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:40,999 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:41,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:58:41,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:41,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 16:58:41,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:41,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:58:41,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:41,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 16:58:41,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:41,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:58:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:41,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:41,057 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:41,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:58:41,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:41,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:58:41,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:41,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:41,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:41,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:41,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:41,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:58:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:41,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:41,143 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:41,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 16:58:41,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:41,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 16:58:41,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:41,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:41,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 16:58:41,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:41,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:41,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:58:41,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:41,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:41,154 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:41,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 16:58:41,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:41,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:41,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:41,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:41,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:41,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:41,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:41,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:58:41,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:41,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:41,162 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:41,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:41,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:41,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:41,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:41,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:41,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:41,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:41,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:41,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 16:58:41,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:41,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:41,172 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:41,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:58:41,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:41,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:58:41,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:41,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:41,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:41,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:41,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:41,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-24 16:58:41,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:41,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:41,185 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:41,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:41,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:41,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:41,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:41,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:41,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:58:41,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:41,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:41,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-09-24 16:58:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:41,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:41,193 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:41,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:41,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:41,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:41,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:41,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:41,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:58:41,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:41,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:41,272 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:58:41,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1561562222] [2020-09-24 16:58:41,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:58:41,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 16:58:41,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723204998] [2020-09-24 16:58:41,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 16:58:41,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:58:41,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 16:58:41,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 16:58:41,277 INFO L87 Difference]: Start difference. First operand 360 states and 402 transitions. Second operand 10 states. [2020-09-24 16:58:42,803 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:58:43,130 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:58:43,445 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 16:58:43,783 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:58:44,128 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:58:44,432 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:58:45,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:58:45,178 INFO L93 Difference]: Finished difference Result 699 states and 848 transitions. [2020-09-24 16:58:45,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 16:58:45,179 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 216 [2020-09-24 16:58:45,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:58:45,186 INFO L225 Difference]: With dead ends: 699 [2020-09-24 16:58:45,187 INFO L226 Difference]: Without dead ends: 454 [2020-09-24 16:58:45,191 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 16:58:45,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2020-09-24 16:58:45,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 374. [2020-09-24 16:58:45,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-09-24 16:58:45,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 419 transitions. [2020-09-24 16:58:45,257 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 419 transitions. Word has length 216 [2020-09-24 16:58:45,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:58:45,258 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 419 transitions. [2020-09-24 16:58:45,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 16:58:45,259 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 419 transitions. [2020-09-24 16:58:45,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-24 16:58:45,262 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:58:45,262 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:45,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:58:45,263 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:58:45,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:58:45,264 INFO L82 PathProgramCache]: Analyzing trace with hash 36285474, now seen corresponding path program 1 times [2020-09-24 16:58:45,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:58:45,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [276187977] [2020-09-24 16:58:45,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:58:45,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:45,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:46,060 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:46,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-09-24 16:58:46,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:46,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 712 [2020-09-24 16:58:46,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:46,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:58:46,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 187 [2020-09-24 16:58:46,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:58:46,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:46,367 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:58:46,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:58:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:46,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:46,486 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:46,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:58:46,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:46,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 16:58:46,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:46,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:46,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:46,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:46,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:46,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:58:46,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:46,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:46,532 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:46,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:46,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:46,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:46,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:46,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:46,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:46,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:46,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:46,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:58:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:46,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:46,539 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:46,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:46,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:46,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:46,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:46,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:46,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:46,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:46,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:46,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:58:46,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:46,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:46,551 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:46,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:46,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:46,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:58:46,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:46,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:46,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:46,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:46,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:46,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:58:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:46,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:46,559 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:46,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:46,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:46,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:46,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:46,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:46,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:46,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:46,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:46,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:58:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:46,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:46,579 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:46,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:58:46,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:46,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:46,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:46,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:46,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:46,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:46,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:46,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 16:58:46,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:46,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:46,587 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:46,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:58:46,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:46,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:58:46,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:46,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:46,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:46,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:46,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:46,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:58:46,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:46,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:46,595 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:46,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:46,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:46,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:46,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:46,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:46,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:46,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:46,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:46,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 16:58:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:46,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:46,698 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:46,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 16:58:46,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:46,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-24 16:58:46,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:46,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:58:46,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 16:58:46,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:58:46,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:46,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:58:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:46,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:46,742 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:46,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:58:46,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:46,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 16:58:46,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:46,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:58:46,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:58:46,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:58:46,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:46,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:58:46,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:46,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:46,780 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:46,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:58:46,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:46,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:58:46,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:46,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:58:46,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:46,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:58:46,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:46,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:58:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:46,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:46,832 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:46,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 16:58:46,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:46,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:58:46,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:46,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:46,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 16:58:46,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:46,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:46,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:58:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:46,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:46,843 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:46,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 16:58:46,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:46,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:58:46,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:46,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:46,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:46,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:46,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:46,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:58:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:46,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:46,852 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:46,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:46,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:46,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:58:46,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:46,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:46,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:46,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:46,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:46,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 16:58:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:46,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:46,862 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:46,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:58:46,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:46,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:58:46,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:46,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:46,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:46,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:46,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:46,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-09-24 16:58:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:46,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:46,875 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:46,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:46,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:46,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:46,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:46,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:46,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:58:46,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:46,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:46,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-24 16:58:46,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:46,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:46,882 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:46,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:46,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:46,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:46,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:46,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:46,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:58:46,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:46,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:46,939 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:58:46,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [276187977] [2020-09-24 16:58:46,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:58:46,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:58:46,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050904362] [2020-09-24 16:58:46,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:58:46,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:58:46,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:58:46,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:58:46,943 INFO L87 Difference]: Start difference. First operand 374 states and 419 transitions. Second operand 9 states. [2020-09-24 16:58:48,277 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:58:48,583 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:58:48,926 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:58:49,285 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:58:49,585 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:58:50,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:58:50,530 INFO L93 Difference]: Finished difference Result 722 states and 874 transitions. [2020-09-24 16:58:50,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 16:58:50,530 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 225 [2020-09-24 16:58:50,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:58:50,538 INFO L225 Difference]: With dead ends: 722 [2020-09-24 16:58:50,539 INFO L226 Difference]: Without dead ends: 463 [2020-09-24 16:58:50,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 16:58:50,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2020-09-24 16:58:50,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 380. [2020-09-24 16:58:50,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2020-09-24 16:58:50,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 425 transitions. [2020-09-24 16:58:50,616 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 425 transitions. Word has length 225 [2020-09-24 16:58:50,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:58:50,617 INFO L479 AbstractCegarLoop]: Abstraction has 380 states and 425 transitions. [2020-09-24 16:58:50,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:58:50,617 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 425 transitions. [2020-09-24 16:58:50,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-24 16:58:50,620 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:58:50,621 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:50,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:58:50,621 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:58:50,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:58:50,622 INFO L82 PathProgramCache]: Analyzing trace with hash -584186273, now seen corresponding path program 1 times [2020-09-24 16:58:50,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:58:50,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [224417867] [2020-09-24 16:58:50,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:58:50,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:50,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:51,975 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:51,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-09-24 16:58:51,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:51,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1301 [2020-09-24 16:58:51,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:51,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 16:58:51,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 16:58:51,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-24 16:58:51,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:52,259 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:58:52,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:58:52,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,506 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:58:52,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-09-24 16:58:52,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:52,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:52,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 16:58:52,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:52,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:58:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,550 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:52,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:52,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:52,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:52,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:58:52,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:52,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:58:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,556 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:52,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:52,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:52,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:52,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:58:52,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:52,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:58:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,567 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:52,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:58:52,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:52,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:52,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:58:52,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:52,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:58:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,576 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:52,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:58:52,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:52,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:52,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:58:52,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:52,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:58:52,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,590 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:58:52,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:58:52,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:52,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:52,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:58:52,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:52,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 16:58:52,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,601 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:58:52,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:58:52,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:52,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:52,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 16:58:52,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:52,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:58:52,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,645 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:52,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:58:52,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:52,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:52,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:52,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:52,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 16:58:52,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,698 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 16:58:52,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 16:58:52,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:52,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 16:58:52,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-24 16:58:52,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:52,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:58:52,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,742 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:58:52,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 16:58:52,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:52,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:52,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:58:52,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:52,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:58:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,759 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:58:52,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:52,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:52,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:52,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 16:58:52,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:52,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:58:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,792 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 16:58:52,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 16:58:52,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:52,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:52,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 16:58:52,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:52,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:58:52,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,801 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 16:58:52,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:52,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:52,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:52,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:52,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:52,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:58:52,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,809 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:52,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:52,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:52,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:52,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:52,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:52,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 16:58:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,822 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:58:52,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:58:52,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:52,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:52,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:52,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:52,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-09-24 16:58:52,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,832 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:52,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:52,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:52,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:58:52,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:52,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:52,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-24 16:58:52,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,840 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:52,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:52,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:52,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:58:52,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:52,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:52,896 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:58:52,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [224417867] [2020-09-24 16:58:52,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:58:52,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 16:58:52,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404880820] [2020-09-24 16:58:52,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 16:58:52,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:58:52,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 16:58:52,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 16:58:52,899 INFO L87 Difference]: Start difference. First operand 380 states and 425 transitions. Second operand 7 states. [2020-09-24 16:58:53,388 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:58:54,189 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:58:56,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:58:56,122 INFO L93 Difference]: Finished difference Result 1037 states and 1274 transitions. [2020-09-24 16:58:56,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 16:58:56,123 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 225 [2020-09-24 16:58:56,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:58:56,129 INFO L225 Difference]: With dead ends: 1037 [2020-09-24 16:58:56,129 INFO L226 Difference]: Without dead ends: 761 [2020-09-24 16:58:56,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-09-24 16:58:56,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2020-09-24 16:58:56,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 672. [2020-09-24 16:58:56,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 672 states. [2020-09-24 16:58:56,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 778 transitions. [2020-09-24 16:58:56,210 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 778 transitions. Word has length 225 [2020-09-24 16:58:56,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:58:56,211 INFO L479 AbstractCegarLoop]: Abstraction has 672 states and 778 transitions. [2020-09-24 16:58:56,211 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 16:58:56,211 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 778 transitions. [2020-09-24 16:58:56,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-24 16:58:56,214 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:58:56,215 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:56,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:58:56,215 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:58:56,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:58:56,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1620667469, now seen corresponding path program 1 times [2020-09-24 16:58:56,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:58:56,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [160630740] [2020-09-24 16:58:56,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:58:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:56,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:56,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:01,195 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:01,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-24 16:59:01,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:59:01,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4920 [2020-09-24 16:59:01,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:01,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 16:59:01,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 16:59:01,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-09-24 16:59:01,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:01,652 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:59:01,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:01,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:01,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:01,912 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:01,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:59:01,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:01,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-24 16:59:01,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:01,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:01,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:01,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 16:59:01,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:01,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:59:01,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:01,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:01,962 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:01,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:01,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:01,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:01,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:01,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:01,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:01,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:59:01,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:01,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:59:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:01,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:01,970 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:01,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:01,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:01,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:01,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:01,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:01,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:01,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:59:01,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:01,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:59:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:01,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:01,982 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:01,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:01,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:01,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:59:01,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:01,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:01,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:01,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:59:01,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:01,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:59:01,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:01,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:01,989 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:01,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:01,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:01,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:01,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:01,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:01,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:01,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:59:01,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:02,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:59:02,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:02,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:02,006 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:02,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:02,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:02,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:02,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:02,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:02,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:02,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:59:02,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:02,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 16:59:02,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:02,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:02,033 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:02,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:59:02,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:02,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 16:59:02,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:02,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:59:02,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:59:02,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:59:02,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:02,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 16:59:02,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:02,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:02,116 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:02,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:59:02,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:02,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 16:59:02,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:02,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:02,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:02,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 16:59:02,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:02,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:02,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:02,125 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:02,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:02,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:02,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:02,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:02,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:02,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:02,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:02,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:02,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 16:59:02,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:02,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:02,205 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:02,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 16:59:02,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:02,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 16:59:02,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:02,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:02,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:02,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 16:59:02,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:02,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:02,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:02,223 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:02,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:59:02,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:02,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:59:02,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:02,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:02,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:02,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:02,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:02,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:59:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:02,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:02,235 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:02,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:59:02,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:02,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:02,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:02,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:02,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:02,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:02,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:02,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:59:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:02,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:02,253 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:02,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 16:59:02,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:02,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 16:59:02,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:02,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:02,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:02,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:02,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:02,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:59:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:02,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:02,263 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:02,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 16:59:02,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:02,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:02,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:02,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:02,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:02,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:02,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:02,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:59:02,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:02,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:02,272 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:02,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:02,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:02,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:59:02,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:02,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:02,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:02,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:02,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:02,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 16:59:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:02,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:02,280 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:02,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:02,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:02,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:02,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:02,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:02,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:02,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:02,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:02,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-24 16:59:02,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:02,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:02,298 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:02,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:02,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:02,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:59:02,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:02,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:59:02,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:02,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:59:02,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:02,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-24 16:59:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:02,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:02,335 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:02,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:02,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:02,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:02,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:02,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:02,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:59:02,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:02,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:02,405 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:59:02,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [160630740] [2020-09-24 16:59:02,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:59:02,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-24 16:59:02,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170171828] [2020-09-24 16:59:02,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 16:59:02,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:59:02,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 16:59:02,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-09-24 16:59:02,409 INFO L87 Difference]: Start difference. First operand 672 states and 778 transitions. Second operand 14 states.