/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 --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 interpolation-heuristic=FIRST --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_spec1_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:04:24,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:04:24,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:04:24,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:04:24,309 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:04:24,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:04:24,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:04:24,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:04:24,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:04:24,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:04:24,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:04:24,337 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:04:24,337 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:04:24,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:04:24,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:04:24,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:04:24,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:04:24,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:04:24,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:04:24,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:04:24,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:04:24,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:04:24,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:04:24,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:04:24,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:04:24,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:04:24,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:04:24,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:04:24,356 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:04:24,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:04:24,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:04:24,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:04:24,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:04:24,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:04:24,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:04:24,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:04:24,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:04:24,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:04:24,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:04:24,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:04:24,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:04:24,367 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 [2020-09-21 11:04:24,395 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:04:24,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:04:24,396 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:04:24,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:04:24,397 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:04:24,397 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:04:24,397 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:04:24,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:04:24,398 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:04:24,398 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:04:24,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:04:24,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:04:24,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:04:24,399 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:04:24,399 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:04:24,399 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:04:24,399 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:04:24,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:04:24,400 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:04:24,400 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:04:24,400 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:04:24,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:04:24,401 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:04:24,401 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:04:24,401 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:04:24,401 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:04:24,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:04:24,402 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:04:24,402 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:04:24,402 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.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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:04:24,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:04:24,875 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:04:24,879 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:04:24,882 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:04:24,883 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:04:24,884 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2020-09-21 11:04:24,984 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/055aad8e8/d090d1f7fecb470295667003bf3c5d8f/FLAG47825ba5f [2020-09-21 11:04:25,607 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:04:25,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2020-09-21 11:04:25,624 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/055aad8e8/d090d1f7fecb470295667003bf3c5d8f/FLAG47825ba5f [2020-09-21 11:04:25,910 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/055aad8e8/d090d1f7fecb470295667003bf3c5d8f [2020-09-21 11:04:25,923 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:04:25,929 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:04:25,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:04:25,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:04:25,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:04:25,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:04:25" (1/1) ... [2020-09-21 11:04:25,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14924135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:04:25, skipping insertion in model container [2020-09-21 11:04:25,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:04:25" (1/1) ... [2020-09-21 11:04:25,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:04:26,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:04:26,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:04:26,392 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:04:26,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:04:26,651 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:04:26,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:04:26 WrapperNode [2020-09-21 11:04:26,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:04:26,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:04:26,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:04:26,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:04:26,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:04:26" (1/1) ... [2020-09-21 11:04:26,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:04:26" (1/1) ... [2020-09-21 11:04:26,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:04:26" (1/1) ... [2020-09-21 11:04:26,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:04:26" (1/1) ... [2020-09-21 11:04:26,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:04:26" (1/1) ... [2020-09-21 11:04:26,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:04:26" (1/1) ... [2020-09-21 11:04:26,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:04:26" (1/1) ... [2020-09-21 11:04:26,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:04:26,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:04:26,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:04:26,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:04:26,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:04:26" (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 [2020-09-21 11:04:26,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:04:26,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:04:26,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:04:26,843 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:04:26,844 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:04:26,844 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:04:26,844 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:04:26,844 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:04:26,844 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:04:26,845 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 11:04:26,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:04:26,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-21 11:04:26,845 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:04:26,846 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:04:26,846 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:04:26,846 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:04:26,846 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:04:26,846 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:04:26,847 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:04:26,847 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:04:26,847 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:04:26,847 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 11:04:26,847 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 11:04:26,848 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:04:26,848 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:04:26,848 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:04:26,848 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:04:26,848 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:04:26,848 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:04:26,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:04:26,849 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:04:26,849 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:04:26,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:04:26,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:04:26,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:04:26,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:04:26,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:04:26,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:04:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:04:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:04:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:04:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:04:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:04:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:04:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:04:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:04:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:04:26,852 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 11:04:26,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:04:26,852 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:04:26,852 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:04:26,852 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-21 11:04:26,852 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 11:04:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:04:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:04:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:04:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:04:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:04:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:04:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:04:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:04:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 11:04:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:04:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:04:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:04:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:04:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:04:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:04:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:04:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:04:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:04:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:04:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:04:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:04:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:04:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:04:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:04:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:04:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:04:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:04:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:04:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:04:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:04:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:04:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:04:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:04:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:04:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:04:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:04:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:04:27,991 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:04:27,991 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:04:27,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:04:27 BoogieIcfgContainer [2020-09-21 11:04:27,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:04:27,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:04:27,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:04:28,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:04:28,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:04:25" (1/3) ... [2020-09-21 11:04:28,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@296ed7d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:04:28, skipping insertion in model container [2020-09-21 11:04:28,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:04:26" (2/3) ... [2020-09-21 11:04:28,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@296ed7d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:04:28, skipping insertion in model container [2020-09-21 11:04:28,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:04:27" (3/3) ... [2020-09-21 11:04:28,007 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product35.cil.c [2020-09-21 11:04:28,020 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:04:28,031 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:04:28,055 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:04:28,082 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:04:28,082 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:04:28,082 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:04:28,082 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:04:28,082 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:04:28,082 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:04:28,083 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:04:28,083 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:04:28,109 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2020-09-21 11:04:28,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-21 11:04:28,120 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:04:28,122 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:04:28,122 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:04:28,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:04:28,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1896668179, now seen corresponding path program 1 times [2020-09-21 11:04:28,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:04:28,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [368834774] [2020-09-21 11:04:28,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:04:28,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:28,552 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:28,552 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:28,552 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:28,553 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:28,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-21 11:04:28,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:28,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:04:28,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:28,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:28,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:04:28,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:28,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:28,967 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:04:28,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:04:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:28,985 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:28,985 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:28,985 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:28,986 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:28,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:28,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:28,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:04:28,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:28,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:28,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:28,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:28,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:29,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:04:29,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:29,090 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:29,090 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:29,091 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:29,091 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:29,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:29,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:29,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:04:29,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:29,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:29,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:29,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:29,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:29,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:04:29,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:29,104 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:29,104 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:29,104 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:29,105 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:29,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:29,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:29,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:04:29,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:29,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:29,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:29,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:29,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:29,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:04:29,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:29,113 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:29,113 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:29,113 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:29,114 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:29,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:29,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:29,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:04:29,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:29,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:29,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:29,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:29,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:29,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:04:29,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:29,123 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:29,124 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:29,124 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:29,124 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:29,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:29,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:29,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:04:29,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:29,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:29,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:29,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:29,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:29,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:04:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:29,132 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:29,132 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:29,132 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:29,133 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:29,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:29,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:29,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:29,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:29,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:29,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:29,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:29,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:29,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:04:29,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:29,143 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:29,144 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:29,144 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:29,144 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:29,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:29,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:29,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:29,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:29,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:29,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:29,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:29,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:29,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:04:29,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [368834774] [2020-09-21 11:04:29,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:04:29,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:04:29,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133057550] [2020-09-21 11:04:29,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:04:29,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:04:29,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:04:29,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:04:29,196 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 3 states. [2020-09-21 11:04:30,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:04:30,283 INFO L93 Difference]: Finished difference Result 269 states and 354 transitions. [2020-09-21 11:04:30,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:04:30,286 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-21 11:04:30,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:04:30,304 INFO L225 Difference]: With dead ends: 269 [2020-09-21 11:04:30,304 INFO L226 Difference]: Without dead ends: 146 [2020-09-21 11:04:30,310 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:04:30,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-09-21 11:04:30,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 114. [2020-09-21 11:04:30,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-21 11:04:30,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2020-09-21 11:04:30,406 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 46 [2020-09-21 11:04:30,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:04:30,407 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2020-09-21 11:04:30,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:04:30,407 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2020-09-21 11:04:30,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-21 11:04:30,411 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:04:30,411 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:04:30,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:04:30,412 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:04:30,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:04:30,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1220507007, now seen corresponding path program 1 times [2020-09-21 11:04:30,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:04:30,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [771016033] [2020-09-21 11:04:30,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:04:30,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:30,522 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:30,523 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:30,523 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:30,523 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:30,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-21 11:04:30,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:30,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:04:30,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:30,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:30,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:04:30,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:04:30,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:30,846 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:04:30,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:04:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:30,855 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:30,856 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:30,856 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:30,856 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:30,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:30,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:30,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:30,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:30,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:30,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:30,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:30,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:30,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:04:30,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:30,893 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:30,893 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:30,894 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:30,894 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:30,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:30,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:30,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:30,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:30,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:30,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:30,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:30,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:30,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:04:30,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:30,899 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:30,899 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:30,899 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:30,899 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:30,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:30,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:30,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:30,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:30,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:30,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:30,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:30,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:30,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:04:30,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:30,904 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:30,904 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:30,905 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:30,905 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:30,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:30,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:30,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:30,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:30,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:30,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:30,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:30,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:30,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:04:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:30,910 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:30,910 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:30,911 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:30,911 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:30,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:30,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:30,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:30,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:30,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:30,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:30,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:30,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:30,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:04:30,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:30,916 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:30,916 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:30,916 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:30,916 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:30,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:30,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:30,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:30,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:30,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:30,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:30,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:30,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:30,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:04:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:30,922 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:30,922 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:30,922 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:30,923 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:30,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:30,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:30,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:30,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:30,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:30,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:30,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:30,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:30,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:04:30,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [771016033] [2020-09-21 11:04:30,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:04:30,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:04:30,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608632105] [2020-09-21 11:04:30,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:04:30,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:04:30,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:04:30,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:04:30,936 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand 4 states. [2020-09-21 11:04:31,364 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:04:32,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:04:32,182 INFO L93 Difference]: Finished difference Result 193 states and 235 transitions. [2020-09-21 11:04:32,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:04:32,184 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-09-21 11:04:32,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:04:32,188 INFO L225 Difference]: With dead ends: 193 [2020-09-21 11:04:32,188 INFO L226 Difference]: Without dead ends: 130 [2020-09-21 11:04:32,190 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:04:32,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-09-21 11:04:32,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 105. [2020-09-21 11:04:32,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-21 11:04:32,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 121 transitions. [2020-09-21 11:04:32,222 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 121 transitions. Word has length 47 [2020-09-21 11:04:32,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:04:32,223 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 121 transitions. [2020-09-21 11:04:32,223 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:04:32,223 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 121 transitions. [2020-09-21 11:04:32,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-21 11:04:32,225 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:04:32,225 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:04:32,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:04:32,226 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:04:32,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:04:32,226 INFO L82 PathProgramCache]: Analyzing trace with hash -421022276, now seen corresponding path program 1 times [2020-09-21 11:04:32,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:04:32,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1030746854] [2020-09-21 11:04:32,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:04:32,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:32,595 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:04:32,596 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:32,596 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:32,596 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:32,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-21 11:04:32,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:32,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-09-21 11:04:32,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:32,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:04:32,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:32,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:04:32,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:32,949 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:04:32,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:04:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:33,021 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:33,021 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:33,022 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:33,022 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:33,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:33,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:33,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 11:04:33,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:33,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:33,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:33,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:04:33,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:33,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:04:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:33,063 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:33,063 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:33,064 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:33,064 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:33,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:33,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:33,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:33,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:33,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:33,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:33,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:33,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:33,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:04:33,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:33,068 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:33,069 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:33,069 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:33,069 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:33,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:33,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:33,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:33,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:33,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:33,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:33,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:33,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:33,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:04:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:33,074 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:33,074 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:33,074 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:33,075 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:33,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:33,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:33,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:33,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:33,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:33,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:33,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:33,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:33,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:04:33,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:33,080 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:33,081 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:33,081 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:33,081 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:33,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:33,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:33,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:33,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:33,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:33,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:33,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:33,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:33,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:04:33,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:33,088 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:33,088 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:33,088 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:33,088 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:33,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:33,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:33,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:33,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:33,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:33,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:33,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:33,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:33,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:04:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:33,093 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:33,093 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:33,093 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:33,093 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:33,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:33,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:33,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:33,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:33,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:33,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:33,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:33,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:33,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:04:33,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1030746854] [2020-09-21 11:04:33,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:04:33,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:04:33,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384379405] [2020-09-21 11:04:33,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:04:33,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:04:33,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:04:33,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:04:33,105 INFO L87 Difference]: Start difference. First operand 105 states and 121 transitions. Second operand 4 states. [2020-09-21 11:04:33,450 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:04:34,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:04:34,694 INFO L93 Difference]: Finished difference Result 302 states and 371 transitions. [2020-09-21 11:04:34,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:04:34,695 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-21 11:04:34,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:04:34,700 INFO L225 Difference]: With dead ends: 302 [2020-09-21 11:04:34,700 INFO L226 Difference]: Without dead ends: 221 [2020-09-21 11:04:34,701 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:04:34,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-09-21 11:04:34,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 174. [2020-09-21 11:04:34,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-09-21 11:04:34,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 205 transitions. [2020-09-21 11:04:34,754 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 205 transitions. Word has length 51 [2020-09-21 11:04:34,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:04:34,755 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 205 transitions. [2020-09-21 11:04:34,755 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:04:34,755 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 205 transitions. [2020-09-21 11:04:34,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 11:04:34,757 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:04:34,757 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:04:34,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:04:34,758 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:04:34,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:04:34,758 INFO L82 PathProgramCache]: Analyzing trace with hash 498542477, now seen corresponding path program 1 times [2020-09-21 11:04:34,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:04:34,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635311011] [2020-09-21 11:04:34,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:04:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:35,107 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:35,107 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:35,108 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:35,108 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:35,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 11:04:35,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:35,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-09-21 11:04:35,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:35,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:04:35,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:35,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 11:04:35,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:35,499 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:04:35,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:04:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:35,576 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:35,576 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:35,576 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:35,577 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:35,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:35,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:35,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-21 11:04:35,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:35,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:35,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:35,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:04:35,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:35,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:04:35,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:35,649 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:35,650 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:35,650 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:35,650 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:35,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:35,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:35,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:35,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:35,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:35,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:35,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:35,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:35,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:04:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:35,658 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:35,659 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:35,659 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:35,659 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:35,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:35,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:35,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:04:35,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:35,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:35,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:35,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:35,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:35,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:04:35,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:35,666 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:35,666 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:35,666 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:35,667 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:35,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:35,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:35,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:35,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:35,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:35,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:35,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:35,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:35,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:04:35,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:35,675 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:35,675 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:35,676 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:35,676 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:35,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:35,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:35,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:04:35,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:35,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:35,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:35,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:35,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:35,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:04:35,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:35,698 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:35,699 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:35,699 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:35,699 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:35,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:04:35,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:35,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:35,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:35,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:35,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:35,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:04:35,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:35,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:04:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:35,709 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:35,709 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:35,709 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:35,710 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:35,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:35,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:35,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:04:35,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:35,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:04:35,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:35,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:35,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:35,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:04:35,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:35,733 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:35,733 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:35,733 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:35,733 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:35,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:35,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:35,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:35,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:35,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:35,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:35,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:35,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:35,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:04:35,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635311011] [2020-09-21 11:04:35,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:04:35,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:04:35,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527895275] [2020-09-21 11:04:35,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:04:35,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:04:35,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:04:35,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:04:35,748 INFO L87 Difference]: Start difference. First operand 174 states and 205 transitions. Second operand 8 states. [2020-09-21 11:04:36,214 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:04:37,481 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:04:37,870 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:04:38,198 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:04:38,486 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:04:38,878 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:04:39,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:04:39,700 INFO L93 Difference]: Finished difference Result 560 states and 724 transitions. [2020-09-21 11:04:39,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:04:39,701 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-09-21 11:04:39,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:04:39,711 INFO L225 Difference]: With dead ends: 560 [2020-09-21 11:04:39,712 INFO L226 Difference]: Without dead ends: 410 [2020-09-21 11:04:39,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:04:39,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2020-09-21 11:04:39,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 309. [2020-09-21 11:04:39,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2020-09-21 11:04:39,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 368 transitions. [2020-09-21 11:04:39,854 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 368 transitions. Word has length 57 [2020-09-21 11:04:39,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:04:39,855 INFO L479 AbstractCegarLoop]: Abstraction has 309 states and 368 transitions. [2020-09-21 11:04:39,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:04:39,855 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 368 transitions. [2020-09-21 11:04:39,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-21 11:04:39,867 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:04:39,868 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:04:39,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:04:39,868 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:04:39,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:04:39,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1390027601, now seen corresponding path program 1 times [2020-09-21 11:04:39,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:04:39,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1482999621] [2020-09-21 11:04:39,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:04:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:40,381 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:40,381 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:40,381 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:40,382 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:40,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-21 11:04:40,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:40,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 463 [2020-09-21 11:04:40,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:40,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:04:40,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:40,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-21 11:04:40,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:40,678 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:04:40,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:04:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:40,774 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:40,775 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:40,775 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:40,775 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:40,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:40,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:40,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-21 11:04:40,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:40,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:40,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:40,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:04:40,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:40,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:04:40,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:40,812 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:40,812 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:40,812 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:40,812 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:40,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:40,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:40,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:40,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:40,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:40,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:40,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:40,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:40,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:04:40,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:40,817 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:40,818 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:40,818 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:40,818 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:40,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:40,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:40,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:40,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:40,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:40,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:40,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:40,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:40,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:04:40,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:40,824 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:40,824 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:40,825 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:40,825 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:40,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:40,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:40,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:04:40,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:40,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:40,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:40,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:40,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:40,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:04:40,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:40,830 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:40,831 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:40,831 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:40,831 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:40,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:40,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:40,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:40,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:40,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:40,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:40,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:40,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:40,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:04:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:40,848 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:40,848 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:40,848 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:40,849 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:40,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:40,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:40,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:40,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:40,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:40,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:40,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:40,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:40,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:04:40,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:40,869 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:40,869 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:40,869 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:40,869 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:40,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:04:40,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:40,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:40,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:40,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:40,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:40,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:04:40,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:40,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:04:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:40,880 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:40,881 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:40,881 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:40,882 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:40,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:40,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:40,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:04:40,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:40,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:40,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:40,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:40,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:40,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 11:04:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:40,893 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:40,893 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:40,894 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:40,894 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:40,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:40,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:40,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:04:40,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:40,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:04:40,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:40,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:40,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:40,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:04:40,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1482999621] [2020-09-21 11:04:40,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:04:40,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:04:40,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27944659] [2020-09-21 11:04:40,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:04:40,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:04:40,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:04:40,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:04:40,936 INFO L87 Difference]: Start difference. First operand 309 states and 368 transitions. Second operand 9 states. [2020-09-21 11:04:41,560 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:04:42,661 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:04:43,037 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:04:43,380 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:04:43,965 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:04:44,316 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:04:45,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:04:45,179 INFO L93 Difference]: Finished difference Result 954 states and 1270 transitions. [2020-09-21 11:04:45,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-21 11:04:45,179 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2020-09-21 11:04:45,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:04:45,186 INFO L225 Difference]: With dead ends: 954 [2020-09-21 11:04:45,186 INFO L226 Difference]: Without dead ends: 669 [2020-09-21 11:04:45,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-09-21 11:04:45,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2020-09-21 11:04:45,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 529. [2020-09-21 11:04:45,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 529 states. [2020-09-21 11:04:45,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 652 transitions. [2020-09-21 11:04:45,330 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 652 transitions. Word has length 61 [2020-09-21 11:04:45,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:04:45,331 INFO L479 AbstractCegarLoop]: Abstraction has 529 states and 652 transitions. [2020-09-21 11:04:45,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:04:45,331 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 652 transitions. [2020-09-21 11:04:45,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-21 11:04:45,333 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:04:45,333 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:04:45,333 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:04:45,334 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:04:45,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:04:45,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1223870708, now seen corresponding path program 1 times [2020-09-21 11:04:45,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:04:45,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1616388960] [2020-09-21 11:04:45,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:04:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:45,587 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:45,588 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:45,588 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:45,588 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:45,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:04:45,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:45,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-09-21 11:04:45,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:45,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:04:45,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:45,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 11:04:45,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:45,848 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:04:45,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:04:45,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:45,916 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:45,916 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:45,916 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:45,917 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:45,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:45,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:45,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-21 11:04:45,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:45,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:45,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:45,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:04:45,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:45,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:04:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:45,951 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:45,951 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:45,952 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:45,952 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:45,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:45,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:45,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:45,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:45,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:45,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:45,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:45,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:45,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:04:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:45,962 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:45,963 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:45,963 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:45,963 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:45,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:45,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:45,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:04:45,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:45,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:45,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:45,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:45,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:45,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:04:45,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:45,968 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:45,968 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:45,968 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:45,969 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:45,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:45,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:45,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:45,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:45,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:45,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:45,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:45,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:45,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:04:45,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:45,973 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:45,974 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:45,974 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:45,974 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:45,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:45,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:45,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:45,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:45,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:45,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:45,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:04:45,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:45,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:04:45,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:45,986 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:45,986 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:45,986 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:45,987 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:45,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:45,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:45,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:04:45,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:45,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:04:45,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:45,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:45,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:46,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:04:46,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:46,008 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:46,008 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:46,008 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:46,009 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:46,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:04:46,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:46,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:04:46,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:46,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:04:46,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:04:46,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:46,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:46,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:04:46,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:46,024 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:46,024 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:46,025 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:46,025 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:46,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:04:46,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:46,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:04:46,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:46,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:04:46,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:04:46,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:46,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:46,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:04:46,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:46,092 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:46,092 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:46,092 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:46,092 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:46,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:04:46,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:46,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:04:46,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:46,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:04:46,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:46,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:46,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:46,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:04:46,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:46,114 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:46,114 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:46,114 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:46,115 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:46,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:46,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:46,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:46,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:46,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:46,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:46,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:46,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:46,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 11:04:46,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:46,120 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:46,120 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:46,120 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:46,120 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:46,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:46,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:46,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:46,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:46,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:46,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:46,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:46,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:46,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 11:04:46,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:46,125 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:46,125 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:46,125 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:46,125 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:46,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:46,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:46,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:04:46,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:46,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:46,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:46,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:46,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:46,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:04:46,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1616388960] [2020-09-21 11:04:46,143 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:04:46,143 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:04:46,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317376891] [2020-09-21 11:04:46,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:04:46,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:04:46,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:04:46,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:04:46,145 INFO L87 Difference]: Start difference. First operand 529 states and 652 transitions. Second operand 9 states. [2020-09-21 11:04:46,837 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:04:47,861 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:04:48,190 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:04:48,537 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:04:48,869 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:04:50,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:04:50,579 INFO L93 Difference]: Finished difference Result 1770 states and 2490 transitions. [2020-09-21 11:04:50,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-21 11:04:50,580 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-09-21 11:04:50,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:04:50,589 INFO L225 Difference]: With dead ends: 1770 [2020-09-21 11:04:50,589 INFO L226 Difference]: Without dead ends: 1265 [2020-09-21 11:04:50,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-09-21 11:04:50,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2020-09-21 11:04:50,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 987. [2020-09-21 11:04:50,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 987 states. [2020-09-21 11:04:50,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1210 transitions. [2020-09-21 11:04:50,738 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1210 transitions. Word has length 78 [2020-09-21 11:04:50,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:04:50,739 INFO L479 AbstractCegarLoop]: Abstraction has 987 states and 1210 transitions. [2020-09-21 11:04:50,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:04:50,739 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1210 transitions. [2020-09-21 11:04:50,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-21 11:04:50,742 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:04:50,742 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:04:50,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:04:50,743 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:04:50,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:04:50,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1060992747, now seen corresponding path program 1 times [2020-09-21 11:04:50,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:04:50,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42719039] [2020-09-21 11:04:50,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:04:50,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:50,789 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:50,789 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:50,789 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:50,789 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:50,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:04:50,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:50,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:04:50,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:50,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:04:50,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-21 11:04:50,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:04:50,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:51,067 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:04:51,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:04:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:51,082 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:51,082 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:51,083 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:51,083 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:51,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:51,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:51,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:04:51,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:51,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:51,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:51,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:51,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:51,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:04:51,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:51,110 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:51,110 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:51,111 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:51,111 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:51,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:51,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:51,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:04:51,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:51,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:51,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:51,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:51,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:51,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:04:51,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:51,114 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:51,114 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:51,114 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:51,114 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:51,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:51,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:51,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:04:51,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:51,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:51,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:51,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:51,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:51,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:04:51,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:51,121 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:51,122 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:51,122 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:51,122 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:51,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:51,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:51,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:04:51,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:51,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:51,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:51,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:51,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:51,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:04:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:51,126 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:51,126 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:51,126 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:51,126 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:51,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:51,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:51,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:04:51,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:51,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:51,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:51,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:51,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:51,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:04:51,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:51,135 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:51,135 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:51,135 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:51,135 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:51,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:51,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:51,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:04:51,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:51,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:51,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:51,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:51,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:51,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:04:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:51,154 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:51,154 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:51,154 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:51,154 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:51,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:04:51,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:51,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:04:51,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:51,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:04:51,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:04:51,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:04:51,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:51,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:04:51,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:51,196 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:51,196 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:51,197 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:51,197 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:51,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:04:51,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:51,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:04:51,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:51,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:04:51,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:51,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:04:51,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:51,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:04:51,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:51,221 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:51,221 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:51,222 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:51,222 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:51,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:04:51,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:51,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:51,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:51,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:51,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:51,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:51,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:51,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:04:51,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:51,226 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:51,226 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:51,227 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:51,227 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:51,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:51,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:51,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:04:51,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:51,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:51,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:51,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:51,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:51,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 11:04:51,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:51,231 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:51,231 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:51,231 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:51,232 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:51,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:51,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:51,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:04:51,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:51,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:51,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:51,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:51,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:51,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 11:04:51,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:51,236 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:51,236 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:51,236 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:51,236 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:51,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:51,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:51,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:04:51,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:51,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:51,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:51,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:51,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:51,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:04:51,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42719039] [2020-09-21 11:04:51,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:04:51,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:04:51,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8489440] [2020-09-21 11:04:51,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:04:51,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:04:51,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:04:51,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:04:51,250 INFO L87 Difference]: Start difference. First operand 987 states and 1210 transitions. Second operand 9 states. [2020-09-21 11:04:52,317 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:04:52,622 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:04:52,943 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:04:53,267 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:04:54,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:04:54,257 INFO L93 Difference]: Finished difference Result 2241 states and 2952 transitions. [2020-09-21 11:04:54,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:04:54,257 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-09-21 11:04:54,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:04:54,265 INFO L225 Difference]: With dead ends: 2241 [2020-09-21 11:04:54,265 INFO L226 Difference]: Without dead ends: 1278 [2020-09-21 11:04:54,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:04:54,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2020-09-21 11:04:54,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 1027. [2020-09-21 11:04:54,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1027 states. [2020-09-21 11:04:54,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1250 transitions. [2020-09-21 11:04:54,454 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1250 transitions. Word has length 78 [2020-09-21 11:04:54,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:04:54,456 INFO L479 AbstractCegarLoop]: Abstraction has 1027 states and 1250 transitions. [2020-09-21 11:04:54,456 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:04:54,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1250 transitions. [2020-09-21 11:04:54,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-21 11:04:54,460 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:04:54,460 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:04:54,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:04:54,461 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:04:54,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:04:54,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1570465837, now seen corresponding path program 1 times [2020-09-21 11:04:54,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:04:54,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366032861] [2020-09-21 11:04:54,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:04:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:54,513 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:04:54,514 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -49 [2020-09-21 11:04:54,514 FATAL L256 erpolLogProxyWrapper]: Difference in width: 49 [2020-09-21 11:04:54,514 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:54,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:04:54,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:54,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:04:54,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:54,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:04:54,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-09-21 11:04:54,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:54,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:54,836 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:04:54,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:04:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:54,847 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:54,847 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:54,848 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:54,848 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:54,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:54,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:54,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:54,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:54,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:54,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:54,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:54,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:54,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:04:54,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:54,886 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:54,887 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:54,887 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:54,887 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:54,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:54,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:54,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:54,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:54,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:54,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:54,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:54,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:54,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:04:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:54,893 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:54,894 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:54,894 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:54,894 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:54,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:54,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:54,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:54,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:54,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:54,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:54,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:54,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:54,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:04:54,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:54,900 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:54,900 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:54,900 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:54,901 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:54,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:54,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:54,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:54,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:54,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:54,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:54,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:54,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:54,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:04:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:54,906 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:54,906 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:54,907 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:54,907 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:54,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:04:54,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:54,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:54,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:54,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:54,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:54,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:54,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:54,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:04:54,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:54,922 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:54,923 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:54,923 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:54,924 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:54,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:54,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:54,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:04:54,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:54,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:54,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:54,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:54,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:54,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:04:54,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:54,944 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:54,945 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:54,945 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:54,946 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:54,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:04:54,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:54,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:04:54,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:54,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:04:54,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:04:54,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:54,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:54,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:04:54,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:54,968 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:54,968 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:54,968 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:54,969 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:54,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:04:54,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:54,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:04:54,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:54,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:04:54,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:04:54,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:54,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:54,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:04:55,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:55,003 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:55,004 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:55,004 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:55,004 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:55,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:04:55,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:55,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:04:55,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:55,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:04:55,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:04:55,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:04:55,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:04:55,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:04:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:55,024 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:55,024 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:55,025 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:55,025 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:55,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:55,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:55,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:55,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:55,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:55,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:55,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:55,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:55,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 11:04:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:55,034 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:55,034 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:55,034 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:55,035 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:55,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:55,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:55,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:55,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:55,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:55,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:55,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:55,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:55,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 11:04:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:04:55,041 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:04:55,042 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:04:55,042 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:04:55,042 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:04:55,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:04:55,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:04:55,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:04:55,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:04:55,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:04:55,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:04:55,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:04:55,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:04:55,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:04:55,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366032861] [2020-09-21 11:04:55,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:04:55,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:04:55,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833447619] [2020-09-21 11:04:55,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:04:55,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:04:55,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:04:55,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:04:55,071 INFO L87 Difference]: Start difference. First operand 1027 states and 1250 transitions. Second operand 8 states. [2020-09-21 11:04:56,040 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:04:56,315 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:04:56,594 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:04:57,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:04:57,561 INFO L93 Difference]: Finished difference Result 1983 states and 2579 transitions. [2020-09-21 11:04:57,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:04:57,562 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2020-09-21 11:04:57,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:04:57,569 INFO L225 Difference]: With dead ends: 1983 [2020-09-21 11:04:57,569 INFO L226 Difference]: Without dead ends: 980 [2020-09-21 11:04:57,573 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:04:57,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2020-09-21 11:04:57,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 809. [2020-09-21 11:04:57,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 809 states. [2020-09-21 11:04:57,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 956 transitions. [2020-09-21 11:04:57,784 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 956 transitions. Word has length 78 [2020-09-21 11:04:57,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:04:57,785 INFO L479 AbstractCegarLoop]: Abstraction has 809 states and 956 transitions. [2020-09-21 11:04:57,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:04:57,785 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 956 transitions. [2020-09-21 11:04:57,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-21 11:04:57,789 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:04:57,789 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:04:57,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:04:57,790 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:04:57,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:04:57,790 INFO L82 PathProgramCache]: Analyzing trace with hash -341045236, now seen corresponding path program 1 times [2020-09-21 11:04:57,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:04:57,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1686072602] [2020-09-21 11:04:57,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:04:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:04:57,866 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:04:57,866 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:04:57,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:04:57,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:04:57 BoogieIcfgContainer [2020-09-21 11:04:57,922 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:04:57,924 INFO L168 Benchmark]: Toolchain (without parser) took 31999.26 ms. Allocated memory was 147.8 MB in the beginning and 634.9 MB in the end (delta: 487.1 MB). Free memory was 103.1 MB in the beginning and 109.9 MB in the end (delta: -6.7 MB). Peak memory consumption was 480.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:04:57,925 INFO L168 Benchmark]: CDTParser took 0.87 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 11:04:57,932 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.22 ms. Allocated memory was 147.8 MB in the beginning and 206.0 MB in the end (delta: 58.2 MB). Free memory was 102.4 MB in the beginning and 175.8 MB in the end (delta: -73.4 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:04:57,934 INFO L168 Benchmark]: Boogie Preprocessor took 99.12 ms. Allocated memory is still 206.0 MB. Free memory was 175.8 MB in the beginning and 171.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:04:57,939 INFO L168 Benchmark]: RCFGBuilder took 1244.18 ms. Allocated memory was 206.0 MB in the beginning and 237.0 MB in the end (delta: 30.9 MB). Free memory was 171.7 MB in the beginning and 200.5 MB in the end (delta: -28.8 MB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:04:57,943 INFO L168 Benchmark]: TraceAbstraction took 29922.71 ms. Allocated memory was 237.0 MB in the beginning and 634.9 MB in the end (delta: 397.9 MB). Free memory was 200.5 MB in the beginning and 109.9 MB in the end (delta: 90.7 MB). Peak memory consumption was 488.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:04:57,949 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 723.22 ms. Allocated memory was 147.8 MB in the beginning and 206.0 MB in the end (delta: 58.2 MB). Free memory was 102.4 MB in the beginning and 175.8 MB in the end (delta: -73.4 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.12 ms. Allocated memory is still 206.0 MB. Free memory was 175.8 MB in the beginning and 171.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1244.18 ms. Allocated memory was 206.0 MB in the beginning and 237.0 MB in the end (delta: 30.9 MB). Free memory was 171.7 MB in the beginning and 200.5 MB in the end (delta: -28.8 MB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29922.71 ms. Allocated memory was 237.0 MB in the beginning and 634.9 MB in the end (delta: 397.9 MB). Free memory was 200.5 MB in the beginning and 109.9 MB in the end (delta: 90.7 MB). Peak memory consumption was 488.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 145]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L250] int pumpRunning = 0; [L251] int systemActive = 1; [L455] int cleanupTimeShifts = 4; [L720] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L528] int retValue_acc ; [L529] int tmp ; [L533] FCALL select_helpers() [L534] FCALL select_features() [L535] CALL, EXPR valid_product() [L446] int retValue_acc ; [L449] retValue_acc = 1 [L450] return (retValue_acc); [L535] RET, EXPR valid_product() [L535] tmp = valid_product() [L537] COND TRUE \read(tmp) [L539] FCALL setup() [L540] CALL runTest() [L522] CALL test() [L181] int splverifierCounter ; [L182] int tmp ; [L183] int tmp___0 ; [L184] int tmp___1 ; [L185] int tmp___2 ; [L188] splverifierCounter = 0 [L190] COND TRUE 1 [L192] COND TRUE splverifierCounter < 4 [L198] tmp = __VERIFIER_nondet_int() [L200] COND TRUE \read(tmp) [L202] CALL waterRise() [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L202] RET waterRise() [L208] tmp___0 = __VERIFIER_nondet_int() [L210] COND TRUE \read(tmp___0) [L212] CALL changeMethaneLevel() [L77] COND FALSE !(\read(methaneLevelCritical)) [L80] methaneLevelCritical = 1 [L212] RET changeMethaneLevel() [L218] tmp___2 = __VERIFIER_nondet_int() [L220] COND TRUE \read(tmp___2) [L235] CALL timeShift() [L257] COND FALSE !(\read(pumpRunning)) [L264] COND TRUE \read(systemActive) [L266] CALL processEnvironment() [L286] int tmp ; [L289] COND TRUE ! pumpRunning [L291] CALL, EXPR isHighWaterLevel() [L383] int retValue_acc ; [L384] int tmp ; [L385] int tmp___0 ; [L389] CALL, EXPR isHighWaterSensorDry() [L127] int retValue_acc ; [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); [L389] RET, EXPR isHighWaterSensorDry() [L389] tmp = isHighWaterSensorDry() [L391] COND FALSE !(\read(tmp)) [L394] tmp___0 = 1 [L396] retValue_acc = tmp___0 [L397] return (retValue_acc); [L291] RET, EXPR isHighWaterLevel() [L291] tmp = isHighWaterLevel() [L293] COND TRUE \read(tmp) [L295] CALL activatePump() [L314] pumpRunning = 1 [L295] RET activatePump() [L266] RET processEnvironment() [L272] CALL __utac_acc__Specification1_spec__1() [L152] int tmp ; [L153] int tmp___0 ; [L157] CALL, EXPR isMethaneLevelCritical() [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L157] RET, EXPR isMethaneLevelCritical() [L157] tmp = isMethaneLevelCritical() [L159] COND TRUE \read(tmp) [L161] CALL, EXPR isPumpRunning() [L338] int retValue_acc ; [L341] retValue_acc = pumpRunning [L342] return (retValue_acc); [L161] RET, EXPR isPumpRunning() [L161] tmp___0 = isPumpRunning() [L163] COND TRUE \read(tmp___0) [L165] CALL __automaton_fail() [L145] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 221 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.7s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 22.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 796 SDtfs, 1357 SDslu, 827 SDs, 0 SdLazy, 3772 SolverSat, 834 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 245 GetRequests, 169 SyntacticMatches, 1 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 9.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1027occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 8 MinimizatonAttempts, 1045 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 578 NumberOfCodeBlocks, 578 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 488 ConstructedInterpolants, 0 QuantifiedInterpolants, 142238 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...