/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options 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_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:40:43,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:40:43,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:40:43,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:40:43,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:40:43,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:40:43,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:40:43,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:40:43,906 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:40:43,909 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:40:43,910 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:40:43,911 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:40:43,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:40:43,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:40:43,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:40:43,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:40:43,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:40:43,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:40:43,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:40:43,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:40:43,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:40:43,931 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:40:43,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:40:43,933 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:40:43,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:40:43,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:40:43,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:40:43,944 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:40:43,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:40:43,947 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:40:43,948 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:40:43,949 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:40:43,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:40:43,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:40:43,959 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:40:43,959 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:40:43,960 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:40:43,960 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:40:43,960 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:40:43,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:40:43,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:40:43,965 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 15:40:44,009 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:40:44,009 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:40:44,011 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:40:44,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:40:44,012 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:40:44,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:40:44,013 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:40:44,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:40:44,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:40:44,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:40:44,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:40:44,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:40:44,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:40:44,015 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:40:44,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:40:44,015 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:40:44,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:40:44,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:40:44,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:40:44,016 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:40:44,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:40:44,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:40:44,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:40:44,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:40:44,017 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:40:44,017 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:40:44,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:40:44,018 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:40:44,018 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:40:44,018 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;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; [2020-09-24 15:40:44,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:40:44,475 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:40:44,479 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:40:44,481 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:40:44,481 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:40:44,483 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c [2020-09-24 15:40:44,561 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97d62f734/3acd702d76d6401780d20e0e259ad7c8/FLAG27334e479 [2020-09-24 15:40:45,132 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:40:45,133 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c [2020-09-24 15:40:45,146 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97d62f734/3acd702d76d6401780d20e0e259ad7c8/FLAG27334e479 [2020-09-24 15:40:45,419 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97d62f734/3acd702d76d6401780d20e0e259ad7c8 [2020-09-24 15:40:45,434 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:40:45,439 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:40:45,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:40:45,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:40:45,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:40:45,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:40:45" (1/1) ... [2020-09-24 15:40:45,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2894617f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:45, skipping insertion in model container [2020-09-24 15:40:45,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:40:45" (1/1) ... [2020-09-24 15:40:45,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:40:45,531 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:40:45,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:40:46,042 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:40:46,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:40:46,167 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:40:46,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:46 WrapperNode [2020-09-24 15:40:46,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:40:46,168 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:40:46,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:40:46,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:40:46,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:46" (1/1) ... [2020-09-24 15:40:46,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:46" (1/1) ... [2020-09-24 15:40:46,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:46" (1/1) ... [2020-09-24 15:40:46,203 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:46" (1/1) ... [2020-09-24 15:40:46,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:46" (1/1) ... [2020-09-24 15:40:46,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:46" (1/1) ... [2020-09-24 15:40:46,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:46" (1/1) ... [2020-09-24 15:40:46,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:40:46,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:40:46,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:40:46,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:40:46,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:46" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:40:46,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:40:46,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:40:46,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 15:40:46,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 15:40:46,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 15:40:46,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 15:40:46,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 15:40:46,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 15:40:46,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 15:40:46,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 15:40:46,366 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 15:40:46,366 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 15:40:46,366 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 15:40:46,367 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 15:40:46,367 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 15:40:46,367 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 15:40:46,367 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 15:40:46,367 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 15:40:46,367 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 15:40:46,368 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 15:40:46,368 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 15:40:46,368 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 15:40:46,368 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 15:40:46,369 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 15:40:46,369 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 15:40:46,369 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 15:40:46,369 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 15:40:46,369 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 15:40:46,369 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:40:46,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 15:40:46,370 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 15:40:46,370 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 15:40:46,370 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 15:40:46,370 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 15:40:46,370 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 15:40:46,370 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 15:40:46,371 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 15:40:46,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:40:46,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:40:46,371 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 15:40:46,371 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 15:40:46,371 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 15:40:46,372 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 15:40:46,372 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 15:40:46,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 15:40:46,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 15:40:46,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:40:46,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 15:40:46,372 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 15:40:46,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:40:46,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 15:40:46,373 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 15:40:46,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:40:46,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 15:40:46,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 15:40:46,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:40:46,374 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 15:40:46,374 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 15:40:46,374 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 15:40:46,374 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 15:40:46,374 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 15:40:46,374 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 15:40:46,375 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 15:40:46,375 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 15:40:46,375 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 15:40:46,375 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 15:40:46,375 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 15:40:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 15:40:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 15:40:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 15:40:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 15:40:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 15:40:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 15:40:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 15:40:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 15:40:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 15:40:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 15:40:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 15:40:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 15:40:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 15:40:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 15:40:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 15:40:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 15:40:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:40:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 15:40:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:40:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 15:40:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:40:47,474 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:40:47,474 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 15:40:47,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:40:47 BoogieIcfgContainer [2020-09-24 15:40:47,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:40:47,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:40:47,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:40:47,487 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:40:47,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:40:45" (1/3) ... [2020-09-24 15:40:47,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af4f932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:40:47, skipping insertion in model container [2020-09-24 15:40:47,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:46" (2/3) ... [2020-09-24 15:40:47,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af4f932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:40:47, skipping insertion in model container [2020-09-24 15:40:47,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:40:47" (3/3) ... [2020-09-24 15:40:47,491 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product33.cil.c [2020-09-24 15:40:47,502 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:40:47,513 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:40:47,534 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:40:47,560 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:40:47,561 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:40:47,561 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:40:47,561 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:40:47,561 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:40:47,561 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:40:47,562 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:40:47,562 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:40:47,587 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2020-09-24 15:40:47,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 15:40:47,602 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:40:47,604 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:40:47,604 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:40:47,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:40:47,611 INFO L82 PathProgramCache]: Analyzing trace with hash -955195086, now seen corresponding path program 1 times [2020-09-24 15:40:47,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:40:47,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1619522278] [2020-09-24 15:40:47,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:40:47,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:47,944 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:47,945 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:47,945 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:47,945 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:47,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 15:40:47,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:47,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:40:47,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:47,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:47,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 15:40:47,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:47,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:48,427 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:40:48,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:40:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:48,466 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:48,466 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:48,467 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:48,467 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:48,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:40:48,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:48,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:40:48,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:48,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:48,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:48,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:48,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:48,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:40:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:48,602 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:48,603 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:48,603 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:48,603 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:48,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:48,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:48,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:40:48,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:48,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:48,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:48,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:48,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:48,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:40:48,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:48,614 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:48,614 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:48,614 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:48,614 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:48,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:48,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:48,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:48,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:48,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:48,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:48,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:48,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:48,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:40:48,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:48,622 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:48,622 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:48,622 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:48,623 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:48,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:48,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:48,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:48,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:48,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:48,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:48,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:48,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:48,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:40:48,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:48,628 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:48,629 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:48,629 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:48,630 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:48,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:48,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:48,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:40:48,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:48,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:48,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:48,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:48,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:48,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:40:48,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:48,636 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:48,636 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:48,636 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:48,636 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:48,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:48,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:48,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:48,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:40:48,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:48,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:40:48,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 15:40:48,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:48,647 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:48,647 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:48,647 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:48,647 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:48,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:48,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:48,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:48,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:48,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:48,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:40:48,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:48,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:48,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:40:48,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1619522278] [2020-09-24 15:40:48,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:40:48,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 15:40:48,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554152764] [2020-09-24 15:40:48,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 15:40:48,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:40:48,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 15:40:48,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:40:48,729 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 3 states. [2020-09-24 15:40:49,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:40:49,907 INFO L93 Difference]: Finished difference Result 419 states and 501 transitions. [2020-09-24 15:40:49,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 15:40:49,909 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 15:40:49,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:40:49,934 INFO L225 Difference]: With dead ends: 419 [2020-09-24 15:40:49,934 INFO L226 Difference]: Without dead ends: 266 [2020-09-24 15:40:49,942 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 [2020-09-24 15:40:49,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-09-24 15:40:50,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 227. [2020-09-24 15:40:50,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-09-24 15:40:50,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 245 transitions. [2020-09-24 15:40:50,042 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 245 transitions. Word has length 142 [2020-09-24 15:40:50,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:40:50,043 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 245 transitions. [2020-09-24 15:40:50,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 15:40:50,043 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 245 transitions. [2020-09-24 15:40:50,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 15:40:50,048 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:40:50,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:40:50,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:40:50,049 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:40:50,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:40:50,050 INFO L82 PathProgramCache]: Analyzing trace with hash -853880488, now seen corresponding path program 1 times [2020-09-24 15:40:50,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:40:50,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [108554528] [2020-09-24 15:40:50,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:40:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:50,144 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:50,144 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:50,144 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:50,144 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:50,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 15:40:50,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:50,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:40:50,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:50,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:40:50,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 15:40:50,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:40:50,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:50,530 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:40:50,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:40:50,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:50,574 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:50,575 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:50,575 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:50,575 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:50,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:40:50,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:50,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:50,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:50,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:50,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:50,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:50,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:50,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:40:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:50,632 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:50,632 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:50,632 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:50,632 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:50,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:50,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:50,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:50,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:50,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:50,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:50,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:50,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:50,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:40:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:50,637 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:50,637 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:50,637 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:50,637 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:50,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:50,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:50,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:50,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:50,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:50,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:40:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:50,643 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:50,643 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:50,643 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:50,644 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:50,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:50,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:50,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:50,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:50,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:50,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:50,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:50,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:50,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:40:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:50,648 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:50,649 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:50,649 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:50,649 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:50,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:50,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:50,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:50,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:50,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:50,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:50,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:50,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:50,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 15:40:50,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:50,653 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:50,653 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:50,653 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:50,654 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:50,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:50,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:50,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:50,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:50,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:50,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:40:50,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:50,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:50,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 15:40:50,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:50,659 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:50,659 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:50,659 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:50,659 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:50,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:50,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:50,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:50,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:50,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:50,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:40:50,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:50,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:50,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:40:50,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [108554528] [2020-09-24 15:40:50,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:40:50,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:40:50,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336402848] [2020-09-24 15:40:50,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:40:50,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:40:50,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:40:50,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:40:50,698 INFO L87 Difference]: Start difference. First operand 227 states and 245 transitions. Second operand 4 states. [2020-09-24 15:40:51,361 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:40:52,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:40:52,073 INFO L93 Difference]: Finished difference Result 336 states and 376 transitions. [2020-09-24 15:40:52,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:40:52,081 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 15:40:52,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:40:52,089 INFO L225 Difference]: With dead ends: 336 [2020-09-24 15:40:52,089 INFO L226 Difference]: Without dead ends: 249 [2020-09-24 15:40:52,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:40:52,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-09-24 15:40:52,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 217. [2020-09-24 15:40:52,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-09-24 15:40:52,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 232 transitions. [2020-09-24 15:40:52,142 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 232 transitions. Word has length 143 [2020-09-24 15:40:52,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:40:52,143 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 232 transitions. [2020-09-24 15:40:52,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:40:52,143 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 232 transitions. [2020-09-24 15:40:52,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-24 15:40:52,146 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:40:52,150 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:40:52,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:40:52,150 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:40:52,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:40:52,151 INFO L82 PathProgramCache]: Analyzing trace with hash -2102825874, now seen corresponding path program 1 times [2020-09-24 15:40:52,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:40:52,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [700749077] [2020-09-24 15:40:52,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:40:52,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:52,218 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:40:52,218 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:52,219 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:52,219 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:52,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 15:40:52,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:52,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:40:52,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:52,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:40:52,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 15:40:52,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 15:40:52,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:52,544 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:40:52,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:40:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:52,583 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:52,583 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:52,584 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:52,584 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:52,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:40:52,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:52,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:40:52,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:52,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:40:52,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:52,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:40:52,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:52,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:40:52,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:52,633 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:52,633 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:52,633 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:52,633 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:52,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:52,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:52,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:52,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:52,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:40:52,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:52,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:40:52,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:52,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:40:52,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:52,638 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:52,639 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:52,639 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:52,639 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:52,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:52,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:52,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:52,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:52,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:40:52,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:52,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:40:52,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:52,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:40:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:52,647 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:52,647 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:52,647 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:52,647 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:52,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:52,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:52,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:52,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:52,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:40:52,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:52,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:40:52,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:52,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:40:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:52,653 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:52,653 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:52,653 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:52,653 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:52,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:52,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:52,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:52,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:52,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:40:52,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:52,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:40:52,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:52,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 15:40:52,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:52,658 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:52,658 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:52,658 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:52,658 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:52,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:52,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:52,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:52,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:52,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:52,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:40:52,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:52,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:52,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 15:40:52,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:52,663 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:52,663 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:52,663 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:52,664 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:52,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:52,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:52,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:52,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:52,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:52,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:40:52,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:52,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:52,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:40:52,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [700749077] [2020-09-24 15:40:52,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:40:52,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:40:52,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426465289] [2020-09-24 15:40:52,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:40:52,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:40:52,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:40:52,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:40:52,698 INFO L87 Difference]: Start difference. First operand 217 states and 232 transitions. Second operand 4 states. [2020-09-24 15:40:53,353 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:40:54,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:40:54,226 INFO L93 Difference]: Finished difference Result 356 states and 401 transitions. [2020-09-24 15:40:54,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:40:54,227 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2020-09-24 15:40:54,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:40:54,238 INFO L225 Difference]: With dead ends: 356 [2020-09-24 15:40:54,238 INFO L226 Difference]: Without dead ends: 249 [2020-09-24 15:40:54,240 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:40:54,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-09-24 15:40:54,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 217. [2020-09-24 15:40:54,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-09-24 15:40:54,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 231 transitions. [2020-09-24 15:40:54,296 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 231 transitions. Word has length 152 [2020-09-24 15:40:54,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:40:54,298 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 231 transitions. [2020-09-24 15:40:54,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:40:54,298 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 231 transitions. [2020-09-24 15:40:54,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 15:40:54,306 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:40:54,307 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:40:54,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:40:54,307 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:40:54,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:40:54,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1355593621, now seen corresponding path program 1 times [2020-09-24 15:40:54,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:40:54,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345500421] [2020-09-24 15:40:54,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:40:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:54,423 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:54,423 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:54,423 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:54,423 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:54,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-24 15:40:54,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:54,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 15:40:54,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:54,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:40:54,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 15:40:54,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:40:54,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:54,750 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:40:54,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:40:54,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:54,786 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:54,786 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:54,786 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:54,786 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:54,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:40:54,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:54,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:54,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:54,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:40:54,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:54,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 15:40:54,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:54,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:40:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:54,830 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:54,830 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:54,830 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:54,830 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:54,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:54,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:54,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:54,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:54,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:40:54,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:54,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:40:54,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:54,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:40:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:54,835 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:54,835 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:54,835 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:54,835 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:54,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:54,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:54,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:54,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:54,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:40:54,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:54,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:40:54,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:54,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:40:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:54,840 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:54,840 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:54,840 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:54,840 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:54,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:54,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:54,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:54,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:54,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:40:54,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:54,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:40:54,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:54,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:40:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:54,845 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:54,846 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:54,846 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:54,846 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:54,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:54,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:54,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:54,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:54,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:40:54,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:54,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:40:54,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:54,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 15:40:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:54,863 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:54,863 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:54,863 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:54,863 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:54,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 15:40:54,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:54,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:40:54,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:54,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:40:54,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 15:40:54,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 15:40:54,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:54,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:40:54,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:54,922 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:54,923 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:54,923 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:54,923 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:54,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:54,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:54,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:40:54,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:54,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:40:54,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:54,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:40:54,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:54,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 15:40:54,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:54,928 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:54,929 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:54,929 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:54,929 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:54,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:54,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:54,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:54,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:54,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:54,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:40:54,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:54,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:54,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 15:40:54,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:54,934 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:54,934 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:54,934 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:54,934 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:54,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:54,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:54,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:54,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:54,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:54,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:40:54,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:54,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:54,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:40:54,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345500421] [2020-09-24 15:40:54,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:40:54,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 15:40:54,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182720309] [2020-09-24 15:40:54,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:40:54,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:40:54,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:40:54,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:40:54,990 INFO L87 Difference]: Start difference. First operand 217 states and 231 transitions. Second operand 7 states. [2020-09-24 15:40:55,633 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:40:56,929 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:40:57,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:40:57,422 INFO L93 Difference]: Finished difference Result 478 states and 544 transitions. [2020-09-24 15:40:57,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 15:40:57,423 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 160 [2020-09-24 15:40:57,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:40:57,426 INFO L225 Difference]: With dead ends: 478 [2020-09-24 15:40:57,426 INFO L226 Difference]: Without dead ends: 371 [2020-09-24 15:40:57,428 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:40:57,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-09-24 15:40:57,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 312. [2020-09-24 15:40:57,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2020-09-24 15:40:57,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 336 transitions. [2020-09-24 15:40:57,478 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 336 transitions. Word has length 160 [2020-09-24 15:40:57,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:40:57,478 INFO L479 AbstractCegarLoop]: Abstraction has 312 states and 336 transitions. [2020-09-24 15:40:57,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:40:57,479 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 336 transitions. [2020-09-24 15:40:57,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-09-24 15:40:57,481 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:40:57,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:40:57,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:40:57,481 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:40:57,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:40:57,482 INFO L82 PathProgramCache]: Analyzing trace with hash 2011013837, now seen corresponding path program 1 times [2020-09-24 15:40:57,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:40:57,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1935303427] [2020-09-24 15:40:57,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:40:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:57,550 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:40:57,550 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -60 [2020-09-24 15:40:57,550 FATAL L256 erpolLogProxyWrapper]: Difference in width: 60 [2020-09-24 15:40:57,551 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:57,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-09-24 15:40:57,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:57,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:40:57,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:57,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:40:57,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-24 15:40:57,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:40:57,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:57,882 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:40:57,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:40:57,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:57,905 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:57,905 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:57,905 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:57,906 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:57,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:40:57,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:57,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:57,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:57,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:57,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:57,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:40:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:57,959 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:57,960 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:57,960 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:57,960 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:57,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:57,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:57,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:57,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:57,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:57,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:57,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:57,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:57,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:40:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:57,965 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:57,966 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:57,966 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:57,966 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:57,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:57,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:57,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:57,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:57,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:57,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:57,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:57,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:57,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:40:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:57,972 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:57,972 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:57,972 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:57,973 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:57,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:57,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:57,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:57,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:57,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:57,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:57,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:57,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:57,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:40:57,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:57,979 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:57,979 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:57,979 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:57,980 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:57,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:57,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:57,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:57,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:57,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:57,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:57,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:57,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:57,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 15:40:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:58,015 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:58,015 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:58,016 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:58,016 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:58,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 15:40:58,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:58,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 15:40:58,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:58,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:40:58,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:40:58,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:40:58,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 15:40:58,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:40:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:58,040 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:58,040 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:58,041 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:58,041 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:58,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:40:58,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:58,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:40:58,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:58,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:40:58,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:40:58,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:40:58,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:58,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:40:58,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:58,081 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:58,081 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:58,081 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:58,082 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:58,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:40:58,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:58,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:40:58,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:58,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:40:58,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:58,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:40:58,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:58,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:40:58,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:58,131 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:58,131 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:58,131 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:58,132 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:58,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:58,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:58,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:40:58,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:58,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:58,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 15:40:58,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:58,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:58,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-24 15:40:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:58,141 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:58,142 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:58,142 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:58,142 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:58,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:58,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:58,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:40:58,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:58,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:58,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:40:58,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:58,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:58,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 15:40:58,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:58,148 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:58,149 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:58,149 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:58,150 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:58,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:58,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:58,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:58,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:58,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:58,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:40:58,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:58,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:58,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:40:58,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1935303427] [2020-09-24 15:40:58,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:40:58,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 15:40:58,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125520648] [2020-09-24 15:40:58,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:40:58,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:40:58,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:40:58,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:40:58,221 INFO L87 Difference]: Start difference. First operand 312 states and 336 transitions. Second operand 8 states. [2020-09-24 15:40:59,507 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:40:59,810 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:41:00,075 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:00,382 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:41:00,700 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:01,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:01,461 INFO L93 Difference]: Finished difference Result 578 states and 658 transitions. [2020-09-24 15:41:01,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 15:41:01,462 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 184 [2020-09-24 15:41:01,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:01,465 INFO L225 Difference]: With dead ends: 578 [2020-09-24 15:41:01,466 INFO L226 Difference]: Without dead ends: 376 [2020-09-24 15:41:01,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-09-24 15:41:01,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2020-09-24 15:41:01,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 318. [2020-09-24 15:41:01,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-09-24 15:41:01,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 342 transitions. [2020-09-24 15:41:01,513 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 342 transitions. Word has length 184 [2020-09-24 15:41:01,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:01,514 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 342 transitions. [2020-09-24 15:41:01,515 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:41:01,515 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 342 transitions. [2020-09-24 15:41:01,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-09-24 15:41:01,517 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:01,517 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:01,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:41:01,518 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:01,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:01,518 INFO L82 PathProgramCache]: Analyzing trace with hash 394324589, now seen corresponding path program 1 times [2020-09-24 15:41:01,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:01,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1844262707] [2020-09-24 15:41:01,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:01,616 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:01,617 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:01,617 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:01,617 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:01,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-09-24 15:41:01,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:01,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 15:41:01,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:01,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:41:01,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 15:41:01,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-24 15:41:01,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:01,954 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:01,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:01,991 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:01,991 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:01,991 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:01,992 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:01,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:01,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:01,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:01,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:01,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:01,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:01,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:41:01,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:02,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:02,051 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:02,051 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:02,052 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:02,052 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:02,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:02,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:02,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 15:41:02,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:02,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:02,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:02,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:02,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:02,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:02,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:02,058 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:02,058 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:02,058 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:02,058 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:02,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:02,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:02,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:02,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:02,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:02,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:02,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:02,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:02,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:02,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:02,065 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:02,065 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:02,065 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:02,065 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:02,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:02,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:02,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:02,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:02,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:02,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:02,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:02,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:02,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:02,072 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:02,072 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:02,073 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:02,073 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:02,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:02,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:02,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:02,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:02,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:02,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:02,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:02,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:02,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 15:41:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:02,094 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:02,094 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:02,094 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:02,095 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:02,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 15:41:02,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:02,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:02,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:02,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:02,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:02,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-24 15:41:02,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:02,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:02,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:02,101 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:02,102 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:02,102 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:02,102 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:02,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:41:02,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:02,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:02,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:02,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:02,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:02,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:02,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:02,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:41:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:02,108 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:02,108 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:02,108 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:02,108 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:02,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:41:02,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:02,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:02,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:02,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:02,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:02,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:02,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:02,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:41:02,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:02,113 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:02,113 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:02,113 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:02,114 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:02,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:02,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:02,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:02,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:02,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:02,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:02,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:02,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:02,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-24 15:41:02,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:02,124 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:02,124 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:02,124 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:02,124 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:02,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:02,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:02,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:41:02,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:02,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:02,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:02,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:02,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:02,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 15:41:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:02,154 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:02,155 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:02,155 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:02,155 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:02,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:02,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:02,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:02,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:02,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:02,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:02,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:02,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:02,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:41:02,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1844262707] [2020-09-24 15:41:02,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:02,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 15:41:02,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648643201] [2020-09-24 15:41:02,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:41:02,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:02,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:41:02,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:41:02,288 INFO L87 Difference]: Start difference. First operand 318 states and 342 transitions. Second operand 9 states. [2020-09-24 15:41:02,771 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:04,207 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:41:04,548 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:41:04,863 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:41:05,143 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:05,449 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:41:05,737 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:06,039 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:41:06,443 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:07,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:07,234 INFO L93 Difference]: Finished difference Result 788 states and 910 transitions. [2020-09-24 15:41:07,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 15:41:07,234 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 184 [2020-09-24 15:41:07,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:07,239 INFO L225 Difference]: With dead ends: 788 [2020-09-24 15:41:07,239 INFO L226 Difference]: Without dead ends: 580 [2020-09-24 15:41:07,240 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 15:41:07,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-09-24 15:41:07,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 489. [2020-09-24 15:41:07,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2020-09-24 15:41:07,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 532 transitions. [2020-09-24 15:41:07,303 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 532 transitions. Word has length 184 [2020-09-24 15:41:07,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:07,303 INFO L479 AbstractCegarLoop]: Abstraction has 489 states and 532 transitions. [2020-09-24 15:41:07,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:41:07,304 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 532 transitions. [2020-09-24 15:41:07,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-24 15:41:07,306 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:07,306 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:07,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 15:41:07,307 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:07,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:07,307 INFO L82 PathProgramCache]: Analyzing trace with hash 682865486, now seen corresponding path program 1 times [2020-09-24 15:41:07,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:07,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1376538297] [2020-09-24 15:41:07,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:07,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:07,395 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:07,395 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:07,395 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:07,396 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:07,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-24 15:41:07,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:07,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 15:41:07,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:07,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 15:41:07,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 15:41:07,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-09-24 15:41:07,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:07,726 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:07,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:07,761 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:07,761 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:07,761 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:07,762 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:07,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:07,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:07,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:07,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:07,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:07,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:07,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 15:41:07,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:07,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:07,805 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:07,806 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:07,806 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:07,806 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:07,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:07,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:07,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:07,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:07,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:07,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:07,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:07,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:07,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:07,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:07,810 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:07,811 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:07,811 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:07,811 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:07,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:07,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:07,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:07,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:07,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:07,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:07,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:07,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:07,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:07,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:07,816 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:07,816 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:07,816 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:07,816 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:07,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:07,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:07,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:07,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:07,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:07,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:07,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:07,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:07,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:07,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:07,821 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:07,821 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:07,822 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:07,822 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:07,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:07,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:07,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:07,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:07,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:07,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:07,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:07,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:07,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:41:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:07,839 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:07,839 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:07,839 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:07,840 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:07,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:41:07,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:07,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:07,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:07,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:07,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:07,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:41:07,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:07,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 15:41:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:07,856 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:07,857 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:07,857 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:07,857 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:07,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 15:41:07,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:07,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:07,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:07,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:07,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:07,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:41:07,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:07,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:07,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:07,874 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:07,875 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:07,875 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:07,875 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:07,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:41:07,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:07,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:41:07,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:07,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:07,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:07,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 15:41:07,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:07,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:41:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:07,884 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:07,885 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:07,885 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:07,885 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:07,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:41:07,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:07,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:07,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:07,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:07,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:07,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:07,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:07,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:41:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:07,893 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:07,893 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:07,894 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:07,894 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:07,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:07,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:07,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:07,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:07,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:07,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:07,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:07,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:07,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-24 15:41:07,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:07,901 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:07,902 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:07,902 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:07,902 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:07,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:07,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:07,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:07,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:07,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:07,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:07,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:07,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:07,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 15:41:07,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:07,913 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:07,913 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:07,914 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:07,914 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:07,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:07,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:07,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:41:07,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:07,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:07,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:07,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:07,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:08,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:41:08,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1376538297] [2020-09-24 15:41:08,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:08,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 15:41:08,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834050376] [2020-09-24 15:41:08,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:41:08,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:08,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:41:08,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:41:08,020 INFO L87 Difference]: Start difference. First operand 489 states and 532 transitions. Second operand 10 states. [2020-09-24 15:41:08,605 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:09,988 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:10,258 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:10,564 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:41:10,845 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:11,176 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:11,502 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:41:11,810 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:12,124 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:12,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:12,666 INFO L93 Difference]: Finished difference Result 646 states and 750 transitions. [2020-09-24 15:41:12,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 15:41:12,667 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 189 [2020-09-24 15:41:12,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:12,672 INFO L225 Difference]: With dead ends: 646 [2020-09-24 15:41:12,672 INFO L226 Difference]: Without dead ends: 643 [2020-09-24 15:41:12,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-24 15:41:12,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2020-09-24 15:41:12,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 489. [2020-09-24 15:41:12,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2020-09-24 15:41:12,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 531 transitions. [2020-09-24 15:41:12,729 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 531 transitions. Word has length 189 [2020-09-24 15:41:12,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:12,730 INFO L479 AbstractCegarLoop]: Abstraction has 489 states and 531 transitions. [2020-09-24 15:41:12,730 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:41:12,730 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 531 transitions. [2020-09-24 15:41:12,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 15:41:12,732 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:12,733 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:12,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 15:41:12,733 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:12,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:12,733 INFO L82 PathProgramCache]: Analyzing trace with hash 888496141, now seen corresponding path program 1 times [2020-09-24 15:41:12,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:12,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1081901686] [2020-09-24 15:41:12,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:12,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:12,788 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:12,789 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:12,789 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:12,789 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:12,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-24 15:41:12,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:12,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:41:12,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:12,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:41:12,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 179 [2020-09-24 15:41:12,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:41:12,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:13,093 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:13,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:13,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:13,107 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:13,107 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:13,107 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:13,108 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:13,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:13,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:13,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:13,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:13,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:13,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:13,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:13,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:13,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:13,161 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:13,161 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:13,162 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:13,162 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:13,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:13,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:13,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:13,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:13,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:13,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:13,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:13,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:13,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:13,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:13,167 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:13,168 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:13,168 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:13,169 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:13,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:13,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:13,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:13,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:13,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:13,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:13,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:13,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:13,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:13,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:13,174 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:13,175 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:13,175 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:13,175 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:13,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:13,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:13,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:13,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:13,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:13,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:13,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:13,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:13,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:13,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:13,180 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:13,181 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:13,181 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:13,182 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:13,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:13,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:13,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:13,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:13,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:13,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:13,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:13,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:13,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:41:13,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:13,198 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:13,198 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:13,198 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:13,199 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:13,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:41:13,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:13,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:13,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:13,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:13,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:13,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:13,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:13,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 15:41:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:13,222 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:13,223 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:13,223 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:13,223 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:13,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:41:13,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:13,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:41:13,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:13,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:41:13,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 15:41:13,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:41:13,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:13,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:13,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:13,267 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:13,267 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:13,268 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:13,268 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:13,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:41:13,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:13,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:41:13,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:13,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:13,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:13,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 15:41:13,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:13,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:41:13,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:13,331 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:13,331 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:13,331 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:13,331 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:13,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:41:13,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:13,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:13,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:13,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:13,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:13,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:13,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:13,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:41:13,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:13,341 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:13,341 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:13,341 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:13,341 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:13,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:41:13,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:13,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:13,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:13,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:13,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 15:41:13,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:13,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:13,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 15:41:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:13,348 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:13,349 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:13,349 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:13,349 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:13,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:13,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:13,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:13,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:13,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:13,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:13,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:13,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:13,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 15:41:13,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:13,354 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:13,354 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:13,355 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:13,355 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:13,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:13,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:13,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:13,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:13,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:13,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:13,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:13,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:13,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:41:13,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1081901686] [2020-09-24 15:41:13,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:13,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 15:41:13,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115229735] [2020-09-24 15:41:13,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:41:13,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:13,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:41:13,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:41:13,417 INFO L87 Difference]: Start difference. First operand 489 states and 531 transitions. Second operand 10 states. [2020-09-24 15:41:14,597 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:14,897 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:41:15,212 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 15:41:15,508 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:15,812 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:41:16,103 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:16,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:16,976 INFO L93 Difference]: Finished difference Result 1032 states and 1191 transitions. [2020-09-24 15:41:16,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 15:41:16,977 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 190 [2020-09-24 15:41:16,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:16,981 INFO L225 Difference]: With dead ends: 1032 [2020-09-24 15:41:16,981 INFO L226 Difference]: Without dead ends: 653 [2020-09-24 15:41:16,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 15:41:16,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2020-09-24 15:41:17,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 505. [2020-09-24 15:41:17,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2020-09-24 15:41:17,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 547 transitions. [2020-09-24 15:41:17,057 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 547 transitions. Word has length 190 [2020-09-24 15:41:17,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:17,057 INFO L479 AbstractCegarLoop]: Abstraction has 505 states and 547 transitions. [2020-09-24 15:41:17,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:41:17,058 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 547 transitions. [2020-09-24 15:41:17,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 15:41:17,060 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:17,060 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:17,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 15:41:17,060 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:17,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:17,061 INFO L82 PathProgramCache]: Analyzing trace with hash -325395952, now seen corresponding path program 1 times [2020-09-24 15:41:17,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:17,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [885587538] [2020-09-24 15:41:17,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:17,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:17,152 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:17,153 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:17,153 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:17,153 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:17,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-24 15:41:17,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:17,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 15:41:17,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:17,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 15:41:17,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 15:41:17,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-24 15:41:17,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:17,438 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:17,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:17,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:17,473 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:17,473 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:17,473 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:17,473 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:17,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:17,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:17,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:17,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:17,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:17,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:17,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 15:41:17,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:17,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:17,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:17,515 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:17,515 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:17,516 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:17,516 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:17,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:17,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:17,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:17,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:17,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:17,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:17,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:17,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:17,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:17,520 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:17,520 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:17,520 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:17,521 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:17,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:17,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:17,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:17,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:17,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:17,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:17,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:17,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:17,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:17,525 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:17,525 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:17,526 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:17,526 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:17,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:17,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:17,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:17,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:17,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:17,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:17,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:17,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:17,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:17,531 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:17,531 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:17,531 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:17,532 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:17,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:17,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:17,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:17,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:17,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:17,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:17,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:17,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:17,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:41:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:17,549 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:17,550 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:17,550 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:17,550 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:17,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:41:17,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:17,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:17,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:17,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:17,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:17,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:41:17,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:17,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 15:41:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:17,565 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:17,565 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:17,565 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:17,566 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:17,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:41:17,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:17,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:17,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:17,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:17,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 15:41:17,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 15:41:17,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:17,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:17,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:17,589 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:17,589 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:17,589 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:17,590 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:17,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:41:17,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:17,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:17,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:17,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:17,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:17,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:41:17,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:17,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:41:17,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:17,604 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:17,605 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:17,605 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:17,605 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:17,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:41:17,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:17,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:17,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:17,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:17,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:17,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:41:17,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:17,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:41:17,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:17,620 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:17,620 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:17,620 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:17,620 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:17,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:41:17,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:17,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:17,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:17,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:17,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:17,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:41:17,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:17,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 15:41:17,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:17,625 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:17,625 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:17,625 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:17,625 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:17,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:17,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:17,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:41:17,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:17,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:17,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:17,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:17,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:17,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 15:41:17,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:17,629 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:17,630 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:17,630 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:17,630 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:17,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:17,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:17,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:41:17,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:17,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:17,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:17,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:17,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:17,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:41:17,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [885587538] [2020-09-24 15:41:17,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:17,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 15:41:17,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551404863] [2020-09-24 15:41:17,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:41:17,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:17,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:41:17,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:41:17,670 INFO L87 Difference]: Start difference. First operand 505 states and 547 transitions. Second operand 7 states. [2020-09-24 15:41:18,174 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:18,827 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:20,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:20,718 INFO L93 Difference]: Finished difference Result 1471 states and 1751 transitions. [2020-09-24 15:41:20,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 15:41:20,719 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2020-09-24 15:41:20,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:20,728 INFO L225 Difference]: With dead ends: 1471 [2020-09-24 15:41:20,728 INFO L226 Difference]: Without dead ends: 1076 [2020-09-24 15:41:20,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-09-24 15:41:20,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2020-09-24 15:41:20,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 903. [2020-09-24 15:41:20,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 903 states. [2020-09-24 15:41:20,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1011 transitions. [2020-09-24 15:41:20,887 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1011 transitions. Word has length 190 [2020-09-24 15:41:20,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:20,888 INFO L479 AbstractCegarLoop]: Abstraction has 903 states and 1011 transitions. [2020-09-24 15:41:20,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:41:20,888 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1011 transitions. [2020-09-24 15:41:20,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 15:41:20,893 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:20,893 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:20,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 15:41:20,893 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:20,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:20,894 INFO L82 PathProgramCache]: Analyzing trace with hash -527704718, now seen corresponding path program 1 times [2020-09-24 15:41:20,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:20,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [878143023] [2020-09-24 15:41:20,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:21,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 15:41:21,019 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 15:41:21,019 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 15:41:21,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 15:41:21,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:41:21 BoogieIcfgContainer [2020-09-24 15:41:21,062 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:41:21,067 INFO L168 Benchmark]: Toolchain (without parser) took 35628.82 ms. Allocated memory was 142.6 MB in the beginning and 739.2 MB in the end (delta: 596.6 MB). Free memory was 104.7 MB in the beginning and 677.5 MB in the end (delta: -572.8 MB). Peak memory consumption was 574.3 MB. Max. memory is 7.1 GB. [2020-09-24 15:41:21,071 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 142.6 MB. Free memory was 124.1 MB in the beginning and 123.7 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-09-24 15:41:21,076 INFO L168 Benchmark]: CACSL2BoogieTranslator took 727.16 ms. Allocated memory was 142.6 MB in the beginning and 206.0 MB in the end (delta: 63.4 MB). Free memory was 103.9 MB in the beginning and 174.3 MB in the end (delta: -70.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. [2020-09-24 15:41:21,076 INFO L168 Benchmark]: Boogie Preprocessor took 117.82 ms. Allocated memory is still 206.0 MB. Free memory was 174.3 MB in the beginning and 170.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2020-09-24 15:41:21,077 INFO L168 Benchmark]: RCFGBuilder took 1195.31 ms. Allocated memory was 206.0 MB in the beginning and 233.3 MB in the end (delta: 27.3 MB). Free memory was 169.6 MB in the beginning and 171.3 MB in the end (delta: -1.7 MB). Peak memory consumption was 77.5 MB. Max. memory is 7.1 GB. [2020-09-24 15:41:21,077 INFO L168 Benchmark]: TraceAbstraction took 33579.56 ms. Allocated memory was 233.3 MB in the beginning and 739.2 MB in the end (delta: 505.9 MB). Free memory was 171.3 MB in the beginning and 677.5 MB in the end (delta: -506.3 MB). Peak memory consumption was 550.1 MB. Max. memory is 7.1 GB. [2020-09-24 15:41:21,085 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 142.6 MB. Free memory was 124.1 MB in the beginning and 123.7 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 727.16 ms. Allocated memory was 142.6 MB in the beginning and 206.0 MB in the end (delta: 63.4 MB). Free memory was 103.9 MB in the beginning and 174.3 MB in the end (delta: -70.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.82 ms. Allocated memory is still 206.0 MB. Free memory was 174.3 MB in the beginning and 170.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1195.31 ms. Allocated memory was 206.0 MB in the beginning and 233.3 MB in the end (delta: 27.3 MB). Free memory was 169.6 MB in the beginning and 171.3 MB in the end (delta: -1.7 MB). Peak memory consumption was 77.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 33579.56 ms. Allocated memory was 233.3 MB in the beginning and 739.2 MB in the end (delta: 505.9 MB). Free memory was 171.3 MB in the beginning and 677.5 MB in the end (delta: -506.3 MB). Peak memory consumption was 550.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 410]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L424] int pumpRunning = 0; [L425] int systemActive = 1; [L683] int cleanupTimeShifts = 4; [L806] int waterLevel = 1; [L807] int methaneLevelCritical = 0; [L756] int retValue_acc ; [L757] int tmp ; [L761] FCALL select_helpers() [L762] FCALL select_features() [L763] CALL, EXPR valid_product() [L674] int retValue_acc ; [L677] retValue_acc = 1 [L678] return (retValue_acc); [L763] RET, EXPR valid_product() [L763] tmp = valid_product() [L765] COND TRUE \read(tmp) [L767] FCALL setup() [L768] CALL runTest() [L750] CALL test() [L581] int splverifierCounter ; [L582] int tmp ; [L583] int tmp___0 ; [L584] int tmp___1 ; [L585] int tmp___2 ; [L588] splverifierCounter = 0 [L590] COND TRUE 1 [L592] COND TRUE splverifierCounter < 4 [L598] tmp = __VERIFIER_nondet_int() [L600] COND TRUE \read(tmp) [L602] CALL waterRise() [L824] COND TRUE waterLevel < 2 [L825] waterLevel = waterLevel + 1 [L602] RET waterRise() [L608] tmp___0 = __VERIFIER_nondet_int() [L610] COND TRUE \read(tmp___0) [L612] CALL changeMethaneLevel() [L836] COND FALSE !(\read(methaneLevelCritical)) [L839] methaneLevelCritical = 1 [L612] RET changeMethaneLevel() [L618] tmp___2 = __VERIFIER_nondet_int() [L620] COND TRUE \read(tmp___2) [L633] CALL timeShift() [L432] COND FALSE !(\read(pumpRunning)) [L439] COND TRUE \read(systemActive) [L441] CALL processEnvironment() [L461] int tmp ; [L464] COND TRUE ! pumpRunning [L466] CALL, EXPR isHighWaterLevel() [L558] int retValue_acc ; [L559] int tmp ; [L560] int tmp___0 ; [L564] CALL, EXPR isHighWaterSensorDry() [L886] int retValue_acc ; [L889] COND FALSE !(waterLevel < 2) [L893] retValue_acc = 0 [L894] return (retValue_acc); [L564] RET, EXPR isHighWaterSensorDry() [L564] tmp = isHighWaterSensorDry() [L566] COND FALSE !(\read(tmp)) [L569] tmp___0 = 1 [L571] retValue_acc = tmp___0 [L572] return (retValue_acc); [L466] RET, EXPR isHighWaterLevel() [L466] tmp = isHighWaterLevel() [L468] COND TRUE \read(tmp) [L470] CALL activatePump() [L489] pumpRunning = 1 [L470] RET activatePump() [L441] RET processEnvironment() [L447] CALL __utac_acc__Specification1_spec__1() [L780] int tmp ; [L781] int tmp___0 ; [L785] CALL, EXPR isMethaneLevelCritical() [L845] int retValue_acc ; [L848] retValue_acc = methaneLevelCritical [L849] return (retValue_acc); [L785] RET, EXPR isMethaneLevelCritical() [L785] tmp = isMethaneLevelCritical() [L787] COND TRUE \read(tmp) [L789] CALL, EXPR isPumpRunning() [L513] int retValue_acc ; [L516] retValue_acc = pumpRunning [L517] return (retValue_acc); [L789] RET, EXPR isPumpRunning() [L789] tmp___0 = isPumpRunning() [L791] COND TRUE \read(tmp___0) [L793] CALL __automaton_fail() [L410] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 606 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 33.4s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 26.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1940 SDtfs, 3190 SDslu, 2806 SDs, 0 SdLazy, 5278 SolverSat, 881 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 304 GetRequests, 209 SyntacticMatches, 2 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 12.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=903occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 786 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 1729 NumberOfCodeBlocks, 1729 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1525 ConstructedInterpolants, 0 QuantifiedInterpolants, 690156 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...